Jurnal Perikanan Unram

COVER, EDITORIAL BOARDS, TABLE OF CONTENT

Fisheries Journal — Sat, 30 Aug 2025 00:00:00 +0800

Fisheries Journal, Volume 14, Number 4, 2025

EFFECTIVENESS OF STRIPED CATFISH TESTIS FLOUR EXTRACT IN MASCULINIZATION OF GUPPY FISH (POECILIA RETICULATA, PETERS) USING THE PREGNANT FEMALE IMMERSION METHOD

Wed, 06 Aug 2025 00:00:00 +0800

EVALUATION OF AQUATIC CARRYING CAPACITY FOR AQUACULTURE : A CASE STUDY ACROSS VARIOUS COUNTRIES

Melati Taufanputri, Zahidah Hasan, Heti Herawati — Wed, 06 Aug 2025 00:00:00 +0800

Carrying capacity of aquatic ecosystems is a crucial concept in ensuring the sustainability of these ecosystems amidst increasing human activities, particularly intensive aquaculture. This study aims to review the literature on aquatic carrying capacity, focusing on the methods and parameters used in related research and the implications of these findings for environmental management. Using a literature study approach, several journals related to the aspects of aquatic carrying capacity were collected and analyzed. The review indicates that factors such as water quality, types of macrophytes used to control eutrophication, and aquaculture management techniques significantly influence the carrying capacity of aquatic systems. A comprehensive understanding of aquatic carrying capacity is essential for developing effective and sustainable management policies.

PERCEPTION OF THE EKAS BUANA COASTAL COMMUNITY TOWARDS THE LARGE-SCALE SEAWEED INDUSTRY DOWNSTREAM MODELING PROJECT

Junaidi Junaidi, Ria Ashari — Wed, 06 Aug 2025 00:00:00 +0800

The large-scale seaweed industry downstream modeling project on the coast of Ekas Buana
village, East Lombok district, has been made a national strategic project by the central
government. The potential of natural resources owned by the Ekas Buana coast has made
policy makers from the center to stakeholders at the regional level utilize the coastal area
optimally and complexly with a relatively narrow area. The purpose of the study was to
determine the perception of the Ekas Buana community towards the large-scale seaweed
industry downstream modeling project. The data collection method used a questionnaire.
Data was reduced using a Likert scale and simple statistics and to obtain conclusions were
described qualitatively descriptively. The results of the study obtained the perception of the
community of cultivators towards the large-scale seaweed industry downstream project in the
categories of know, agree, and positive, a percentage score of 33.4% was obtained, and in the
category of Don't Know, Disagree, Not Positive a percentage score of 35.8% was obtained,
and in the category of Very Don't Know, Very Disagree, Very Not Positive a percentage
score of 17.6% was obtained, meaning that these three categories still dominate the
perception of the unexpected category, namely a score higher than the most expected score.
The perception of the community from the government, business elements and community
leaders was dominated by a good perception, where the respondents' answers were dominated
by the most expected answer, namely 43.56%.The conclusion of this study is that the
perception of the Ekas Buana community towards the large-scale seaweed industry
downstream project is dominated by people who have a negative perception, disagree, and
don't know

DEVELOPMENT STRATEGY FOR GROUPER SKIN CRACKERS IN SUNGEGENENG VILLAGE, SEKARAN DISTRICT, LAMONGAN REGENCY

Bhiaztika Ristyanadi, Yora Utami Putri Pratiwi, Achmad Rizal Dwi Andriawan — Wed, 06 Aug 2025 00:00:00 +0800

One of the businesses that has great opportunities in Lamongan Regency is processed grouper skin rambak crackers. One of the processing areas for fish skin crackers in the Lamongan area is in Sungegeneng Village, Sekaran District. The large amount of waste from grouper handling factories has provided business opportunities to process grouper skin waste into rambak crackers. The realization of the grouper skin cracker processing business is still not growing rapidly, so input is needed to find a business development strategy. The purpose of this study is to find out the characteristics of business actors and business profiles as well as identify internal and external factors that affect business development and then formulate strategies that can be applied in the development of fish skin cracker business.

The method used in this study is a qualitative descriptive method with a case study approach and the case unit is the processing of grouper fish skin crackers in Sungegeneng Village, Sekaran District, Lamongan Regency.

The results of the analysis in the SWOT matrix obtained the coordinates (0.767; 1,210) which is located in quadrant I (one) or growth conditions, namely the SO strategy (strenght and opportunities) that supports aggressive growth policies. The strategy that can be applied is to maintain product quality by choosing raw materials that are still fresh and processing grouper fish skins properly in accordance with Good Fish Processing Practices (CPIB), improving more modern processing technology by using adequate drying technology to meet large market demand, improving the bookkeeping system, and utilizing government support in marketing products and capacity building through training Digital Marketing organized by related stakeholders.

EFFECTS OF DIETARY SUPPLEMENTATION OF Archidendron pauciflorum PEEL ON BLOOD PROFILE OF Pangasianodon hypophthalmus

Agung Cahyo Setyawan, Taufik Budhi Pramono, Lilik Setiyaningsih — Wed, 06 Aug 2025 00:00:00 +0800

Pathogenic bacteria are one of the main challenges in the cultivation of Pangasianodon hypophthalmus because they can cause organ damage and even death. The utilisation of natural ingredients such as Archidendron pauciflorum peel extract is one alternative to improve fish health in an environmentally friendly manner. This study aimed to evaluate the effect of adding Archidendron pauciflorum peel extract in feed on haematological parameters of Pangasianodon hypophthalmus. A total of 160 test fish were divided into four treatments with extract doses of 0% (control), 0.01%, 0.02%, and 0.03%, for 21 days. Parameters observed included total erythrocytes, haemoglobin levels, and haematocrit values. The results showed that Archidendron pauciflorum peel extract significantly increased haemoglobin levels and haematocrit values (P<0.05), especially at the 0.03% dose, compared to the control. Total erythrocytes showed a decrease on day 21 in all extract treatments, presumably due to the content of bioactive compounds (tannins, flavonoids, and saponins) in high doses. Bioactive compounds in Archidendron pauciflorum peel extract such as flavonoids, saponins, and tannins are known to play a role in improving haematological parameters, but their use needs to pay attention to the appropriate dose so as not to cause negative effects.

PRODUCTION COMPARISON OF PURSE SEINE CATCHES LANDED AT PPS NIZAM ZACHMAN JAKARTA

Wed, 06 Aug 2025 00:00:00 +0800

The Ministry of Fisheries and Fisheries (KKP) issued the latest policy in the form of Measured Fishing (PIT) to maintain the sustainability of natural resources. PPS Nizam Zachman is one of the fishing ports that implements this policy by providing weighbridge facilities. Weighbridges are useful in recording the production of landed catches. One of the highest productions at PPS Nizam Zachman is purse seine. Therefore, this study aims to analyze the comparison of purse seine production weighed using a dock scale with a weighbridge. The method used in this study is in the form of a survey. This study uses primary data obtained through interviews, as well as secondary data obtained through the annual report of PPS Nizam Zachman. This study uses descriptive and comparative descriptive analysis. The results of this study are the average production of purse seine catch from pier weighers of 3,546,809.30 kg and weighbridges of 3,761,069.60 kg, and an average difference of 214,260.30 kg. The comparison of the two is seen with the T-Test which produces a P Value of < 0.05, meaning that there is a significant difference. The average accuracy level of weighbridges of 94.31% shows that the data produced is not accurate, due to several factors such as the use of blong, the availability of vehicle fuel, and the difference in fish transport drivers.

FROM TRADITION TO INNOVATION: LITERATURE REVIEW ON SALT PROCESSING AND ITS REPLICATION POTENTIAL IN JEMBRANA

Wed, 06 Aug 2025 00:00:00 +0800

Salt is a strategic commodity that plays an important role in daily life, both as food, industrial raw materials, and in the health sector. Salt processing in Indonesia, especially in coastal areas, is generally carried out traditionally, which includes evaporation and boiling techniques. However, traditional salt processing in many areas, including Jembrana, Bali, still faces challenges related to product quality, production efficiency, and limited market access. Innovations in salt processing technology, such as the use of geomembranes and salt houses, have been shown to improve the quality and quantity of salt production. This article aims to review the literature related to traditional and innovative salt processing, and explore the potential for replicating these innovations in Jembrana. The results of the study indicate that Jembrana has great potential to develop an innovation-based salt industry, by adopting the latest technology and strengthening community-based business institutions. However, several gaps in technology, human resources, and institutions must be addressed to create a sustainable and competitive salt industry. With support from various parties, including the government, academics, and local communities, Jembrana has the opportunity to become a leading region in the production of high-quality local salt.

THE EFFECT OF STEAMING TIME OF THE DOUGH ON THE PREFERENCE LEVEL OF SQUID CRACKERS (Loligo sp.)

Rusky Intan Pratama, Yuli Andriani, Iis Rostini, Tara Filardi — Wed, 06 Aug 2025 00:00:00 +0800

Squid (Loligo sp.) is a high-value fishery commodity with rich nutritional content, so it has the potential to be developed into various nutritious processed products such as squid crackers. Squid cracker processing involves several important stages, where the steaming process plays a major role in determining the physical and organoleptic quality of the final product. This study aimed to analyze the effect of steaming time of the dough on the preference level of squid crackers (Loligo sp.) to produce a product favored by panelists, as well as to examine the physical properties of the preferred squid crackers. The research was conducted at the Fishery Product Processing Laboratory, Faculty of Fisheries and Marine Sciences, and the Testing Laboratory, Faculty of Agro-Industrial Technology, Padjadjaran University, from December 2024 to February 2025. An experimental method was used with three different steaming durations: 30 minutes, 45 minutes, and 60 minutes. The parameters observed were organoleptic characteristics assessed by 20 semi-trained panelists including appearance, aroma, taste and texture, as well as physical properties such as hardness and expansion power. Data obtained from the results of the Hedonic test observations were analyzed using the Friedman test and data obtained from the hardness test were analyzed descriptively and the expansion power test was analyzed using ANOVA analysis. The research results showed that squid crackers with a steaming time of 45 minutes were the most preferred treatment by the panelists with an average value of appearance of 7.9; aroma 7.4; taste 8.0; and texture 8.0. The results of the hardness test of treatment B were 2,301.632 gf and the swelling power test was 56.57%.

STUDYING COASTAL COMMUNITIES IN THE BANGKA BELITUNG ISLANDS PROVINCE FROM A SOCIOECONOMIC AND CULTURAL PERSPECTIVE

Wed, 06 Aug 2025 00:00:00 +0800

The coastal area in the Bangka Belitung Islands Province has high mangrove biodiversity with
an area of 67,386 Ha. The purpose of the study was to examine the social, economic, and
cultural aspects of the coastal communities of the Bangka Belitung Islands Province. The
research method was a survey. Data collection consisted of primary and secondary data.
Primary data were obtained directly from in-depth interviews with 129 informants from 13
coastal villages determined purposively on Bangka Island and Belitung Island. Primary data
collection used questionnaires, observation and documentation. Secondary data were obtained
from the village office and related agencies. The results of the study, the social conditions of
the community include PLN electricity sources, the main source of water for the community is
well water, the transportation route is land transportation, public facilities include mosques,
prayer rooms, soccer fields, volleyball courts, village libraries and the main signal towers are
Telkomsel and Indosat. The religion practiced by the majority of the community is Islam. The
types of work of the coastal village community recorded consist of educators, medical
personnel, midwives, traders, fishermen, self-employed, unemployed and others. Economic
conditions include district/city GRDP, namely the highest GRDP value in Bangka Regency in
2023 of IDR 11,756,196 million and the lowest in East Belitung Regency of IDR 6,211,049
million. Local wisdom or culture in the Bangka Belitung Islands Province includes: Maulid,
Ruahan, Isra miraj, nisfu syaban, Satu Muharram, Rebo kasan, Peh Cun and Perang Ketupat.
Public perception of the existence of mangrove forests and unconventional mining in coastal
areas is in the Good category, while community participation in mangrove
rehabilitation/protection and coastal community preferences related to the economy that they
want to develop are in the Medium category. The economic preferences that they want to
develop are fish, shrimp and crab cultivation, fish processing such as kemplang and shrimp
paste, nipah crafts and mangrove tourism.

DETERMINATION OF WATER QUALITY STATUS OF SITU CISANTI USING THE STORET METHOD

Ronald Krina Rizki Gunawan, Heti Herawati, Asep Sahidin, Zahidah Zahidah — Wed, 06 Aug 2025 00:00:00 +0800

Situ Cisanti has the main function which is, being utilized by the surrounding community for various activities such as plantations, fisheries and tourism activities. The many activities in Situ Cisanti have an impact on the decline in water quality in the waters of Situ Cisanti. The water quality in Situ Cisanti must meet water quality standards because Situ Cisanti is the zero point of the Citarum River so that it has a direct impact on fish farming activities and drinking water sources along the Citarum River. Determination of water quality status in a body of water can be done by several methods, one of which is the STORET Method. Through the STORET Method, the water quality status of Situ Cisanti can be determined. The method used is the survey method. Determination of sampling points is determined based on considerations of the zoning of the water body consisting of inlets, the middle of the waters and outlets. Data analysis is carried out by comparing it with water quality standards and scoring it. Based on the results, the water quality status of Situ Cisanti is categorized as "lightly to moderately polluted" with a score between -10 to -11 for class 1 water quality standards and is categorized as lightly polluted with a score of -10 for class 2 quality standards. So it can be concluded that it does not meet the quality standards set by Government Regulation Number 22 of 2021 for raw water for drinking water and fisheries activities.

POTENTIAL USE OF GUDUCHI (Tinospora cordifolia) AS SHRIMP IMMUNOSTIMULANT: ARTICLE REVIEW

Rangga Idris Affandi, Nuri Muahiddah — Wed, 06 Aug 2025 00:00:00 +0800

Shrimp is among the most economically important aquaculture species globally, playing a significant role in ensuring both food and economic stability. However, the development of aquaculture, particularly shrimp farming, faces several management challenges, with disease outbreaks being a major concern. One effective strategy for disease control is maintaining shrimp health through preventive measures, such as administering immunostimulants. Natural sources of immunostimulants, especially from plants, are gaining attention. One such plant is guduchi (Tinospora cordifolia), known for its rich array of bioactive compounds. Widely recognized as an ingredient in traditional bitter herbal medicine, guduchi offers various health benefits to humans and holds promise for enhancing shrimp immunity. This literature review aims to highlight the potential of guduchi as an immunostimulant for shrimp. The study applies a systematic literature review approach, involving planning, data collection, analysis, and drawing conclusions. Findings indicate that guduchi contains several compounds capable of boosting the immune response in shrimp, suggesting strong potential for further research and application in aquaculture, particularly in shrimp production

ECONOMIC VALUATION OF THE DIRECT BENEFITS OF CAPTURE FISHERIES AND THE CONTRIBUTION OF MANGROVES FOR FISHERMEN OF BATU ITAM VILLAGE, BELITUNG

Yolanda Yolanda, Umroh Umroh, La Ode Wahidin — Wed, 06 Aug 2025 00:00:00 +0800

The coastal area of Batu Itam Village possesses significant potential in natural resources and environmental services, along with a high level of biodiversity. This study aims to determine the direct economic benefits of capture fisheries within the mangrove ecosystem and assess the contribution of these direct economic values to household incomes in Batu Itam Village. The research employs a quantitative descriptive methodology and was conducted in June 2024. Respondents were selected using snowball sampling and census methods. The study involved two groups: 27 mangrove fishermen identified through a census approach and 20 general fishermen selected using the Slovin formula. Primary data were collected via respondent interviews, while secondary data were obtained through literature reviews. Mangrove area measurements were conducted spatially using Sentinel-2A satellite data. The findings reveal that the direct economic value of the mangrove ecosystem in Batu Itam Village amounts to IDR 1,376,670,000 per year, with an average of IDR 275,334,000 annually. This value is supported by the mangrove ecosystem's area of 205.13 hectares. Among the resources, fish provide the highest direct economic benefit compared to squid, crabs, shrimp, and shellfish. The contribution of income derived from the mangrove ecosystem constitutes 74% of the total household income for fishermen in Batu Itam Village

GASTROPOD COMMUNITY STRUCTURE IN THE MANGROVE ECOSYSTEM OF KEJAWANAN BEACH: RELATIONSHIP BETWEEN ABUNDANCE AND ENVIRONMENTAL FACTORS

Wed, 06 Aug 2025 00:00:00 +0800

This study aims to determine the structure of the gastropod community and the relationship between environmental parameters and gastropod abundance in the mangrove ecosystem of Kejawanan Beach. This study used a survey method using 10 x 10 m quadrant transects with 1 x 1 m subplots inside, with five points placed at each corner and in the center. The results of the study showed 12 families, including Potamididae, Littorinidae, Cerithiidae, Ellobiidae, Naticidae, Melongenidae, Coniidae, Nassariidae, Clavatulidae, Assimineidae, Ampullariidae, and Achatinidae. The total abundance of gastropods was 32.78 ind/m2. The diversity (H’) obtained falls into the moderate diversity category, with a value of 1.61. The evenness (E) obtained falls into the moderate evenness category and indicates a stable community, with a value of 0.62. The dominance (C) of gastropods indicates that no single species dominates across all research stations. The abundance of gastropods in the mangrove ecosystem of Kejawanan Beach shows a strong and positive relationship with environmental parameters such as silt fraction and salinity, and has a negative correlation with sand fraction and Dissolved Oxygen (DO).

ESTIMATION OF CARBON STORAGE POTENTIAL IN THE MANGROVE FOREST REHABILITATION AREA IN SEBELE VILLAGE, RIAU ISLANDS

Wed, 06 Aug 2025 00:00:00 +0800

Global warming is a phenomenon of increasing the average temperature of the earth's surface. Carbon can be stored in various forms in ecosystems, one of which is the concept of blue carbon. This research aims to analyze the condition of the mangrove ecosystem and the potential for carbon storage in the mangrove forest rehabilitation area in Sebele Village, Karimun Regency, Riau Islands. This research was conducted from October 2024 to July 2025 in the mangrove forest rehabilitation area of Sebele Village, Riau Islands Province. The method used in this research is the survey method. Standing biomass data was obtained using allometric equations. The research results show that the level of tree density in the mangrove forest rehabilitation area of Sebele Village is in the Sparse category. At the tree level, it is dominated by the Xylocarpus granatum species, while at the sapling level it is dominated by the Rhizophora mucronataspecies. The highest carbon storage value is found in the Avicennia marina species with a carbon storage value of 14.44 tons/ha. And the potential carbon storage from the calculation results obtained a carbon storage value of 61.43 tons/ha. The carbon storage value is directly proportional to the standing biomass. The greater the standing biomass, the greater the carbon stored.

ANALYSIS OF POTENTIAL SUSTAINABLE SHRIMP JERBUNG (Fenneropeneus merguinsis) LANDED AT FISH AUCTION PLACE PANGANDARAN WEST JAVA USING SCHAEFER AND WALTER HILBORN METHOD

Zaka Syarof, Ani Suryanti — Wed, 06 Aug 2025 00:00:00 +0800

TPI Pangandaran is a fishing base with the highest fish landing productivity in Pangandaran Regency, one of the commodities landed is jerbung shrimp (Fenneropenaeus merguiensis). High demand for jerbung shrimp leads to increased fishing intensity, so an analysis of sustainable potential is needed to maintain the sustainability of jerbung shrimp. Analysis of sustainable potential with the Maximum Sustainable Yeield (MSY) approach is important to maintain the sustainability of shrimp resources. The purpose of this study was to analyze the value of CPUE, FPI, and MSY of jerbung shrimp. The method used to analyze the value of MSY is the surplus production method with the approach of Walter Hilborn and Schaefer. The results showed that the CPUE value fluctuated during 2017-2022, with the highest value of 88.67 kg/trip in 2018 and the lowest value of 23.44 kg/trip in 2022. The standard fishing gear with the highest value of FPI is Trammel net. The MSY value using the Schaefer method is 917,990.50 with a Total Allowable Catch (TAC) of 734,392.4 , while the Walter Hilborn method produces an MSY value of 418,065.50 with a TAC of 334,452.4 ,. The exploitation of jerbung shrimp in TPI Pangandaran is still a safe condition. The R square value with Walter Hilborn method is greater than the Schaefer method, which is 0.90254. The value of R square which is greater or close to 1 indicates that in this study the Walter Hilborn method is more relevant to determine MSY and TAC of jerbung shrimp

EFFECTIVENESS OF PROBIOTIC, PREBIOTIC, AND SYNBIOTIC APPLICATIONS IN INCREASING FISHERY FARMING PRODUCTIVITY

Wahid Hasyimi, Misri Yandi — Wed, 06 Aug 2025 00:00:00 +0800

Aquaculture is one of the important sectors that fulfill the community's animal protein needs. However, the intensification of aquaculture often faces challenges such as decreasing water quality, increasing disease attacks, and suboptimal organism growth. To overcome these problems, biotechnology-grounded approaches such as the application of probiotics, prebiotics, and synbiotics have begun to be widely developed. Probiotics are living microorganisms that provide health benefits to the host by improving intestinal microflora, while prebiotics are non-digestible compounds that encourage the growth of beneficial microorganisms. The combination of the two, known as synbiotics, is believed to provide a synergistic effect in improving the health and resilience of aquatic organisms. This article reviews various research results related to the effectiveness of the use of probiotics, prebiotics, and synbiotics in improving growth performance, disease resistance, and feed efficiency in various fish and shrimp species. By implementing this strategy, sustainable aquaculture can be realized by strengthening the natural immune system and improving the balance of aquatic microbiota.

MORPHOMETRIC COMPARISON OF SEAGRASS ENHALUS ACOROIDES AT TUKAK BEACH AND TANJUNG KERASAK BEACH SOUTH BANGKA REGENCY

Rizka Ramadhayanti, Umroh Umroh, Eva Utami — Wed, 06 Aug 2025 00:00:00 +0800

Variations in water quality and substrate characteristics between Tukak Beach and Tanjung Kerasak Beach are presumed to influence the morphometric traits of Enhalus acoroides growing in these areas. Based on previous studies, there is a need for more comprehensive investigation in the South Bangka region, particularly focusing on Tukak Beach and Tanjung Kerasak Beach as the main study sites. This research aims to identify morphometric differences in Enhalus acoroides between the two locations, as well as to analyze the relationship between these morphological characteristics and the respective water quality parameters. The fieldwork was conducted in January 2024, with sampling carried out at Tukak Beach and Tanjung Kerasak Beach. Data were collected from six sampling stations, yielding a total of 360 morphometric samples of Enhalus acoroides. The results revealed notable differences in morphological measurements of Enhalus acoroides between the two study areas. At Tukak Beach, analysis of water quality indicated a significant correlation between dissolved oxygen (DO) levels and leaf length of Enhalus acoroides. Meanwhile, findings from Tanjung Kerasak Beach suggested that the local water quality exhibited a moderate level of correlation with the morphometric traits of the same species

ESTIMATION OF FISH PRODUCTION THROUGH NUTRIENT ANALYSIS OF MANGROVE LITTER Avicennia Sp. AT THE WONOREJO-SURABAYA MANGROVE INFORMATION CENTER

Rindya Fery Indrawan, Hariyadi Hariyadi — Wed, 06 Aug 2025 00:00:00 +0800

Mangrove forest is a very fertile ecosystem and is located in the coastline so that it has a major contribution to the surrounding environment. Mangrove tree litter that falls will be a food source for aquatic biota and nutrients that greatly determine the productivity of marine fisheries. The purpose of this study was to analyze the production of nutrients (N, P) from mangrove leaf litter, suspect the primary production of phytoplankton from nutrients released from mangrove leaf litter, and to estimate the carrying capacity of the mangrove ecosystem on fish production. This research station determination method uses a purposive randome sampling method with reference to the mangrove density and determination of the sampling point. Litter production measurements using themethod litter trap and decomposition rate using themethod litter bag. Estimation of fish production using the Beveridge (1984) method approach. The amount of nutrients released by mangrove Avicennia sp. per day at the mangrove Information Center which is 0.0350-0.0503 g N / m / day and the release of Phosphorus ranges between 0.0018-0.0053 g P / m2 / day. The value of primary production in the mangrove ecosystem information center Wonorejo-Surabaya is quite high ranging from 460 to 690 g C / m2 / yr, and is included in the category of fertile to very fertile. Herbivor fish production ranges from 462.04 to 690 kg / ha / yr; Carnivorous fish ranged from 46.20 to 69 kg / ha / yr and total fish production ranged from 595.80 kg / ha / yr. The total fish production illustrates the potential of fish production contributed from the mangrove ecosystem at 595.80 kg / year.

OPTIMIZATION OF INTEGRATED MULTI-TROPHIC AQUACULTURE (IMTA) CULTIVATION IN AQUARIA: A REVIEW OF PRODUCTIVITY, ECOSYSTEM BALANCE, AND ENVIRONMENTAL SUSTAINABILITY

Wed, 06 Aug 2025 00:00:00 +0800

This study aimed to evaluate the effectiveness of an aquarium-based Integrated Multi-Trophic Aquaculture (IMTA) system compared to a monoculture system. The research was conducted from November to December 2024 at the Aquaculture Laboratory, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran. The experimental design used was a Completely Randomized Design (CRD) with five treatments and three replications, involving combinations of guppy fish (Poecilia reticulata), Egeria densa aquatic plants, Ramshorn snails (Planorbella duryi), and Orange Rili shrimp (Neocaridina davidi). Parameters observed included water quality (pH, DO, nitrate, phosphate, turbidity, temperature), organism growth, benefit-cost ratio (BCR), and aesthetic value using a 1–5 scale. The results showed that Treatment E (combining fish, plants, snails, and shrimp) provided the best performance, with the most stable water quality, highest organism growth, highest BCR, and an average aesthetic score of 4.89. The IMTA system was shown to improve resource efficiency, reduce biological waste, and enhance the visual appeal of aquarium-based aquaculture. These findings support the application of aquarium-scale IMTA as a sustainable aquaculture model that is ecologically, economically, and aesthetically adaptive.

ANALYSIS OF SOCIO-ECONOMIC CHARACTERISTICS OF HOUSEHOLD CATFISH FARMERS IN PALEMBANG CITY

Anilda Satya Ningrum, Desi Ariyani, Mohamad Amin — Fri, 22 Aug 2025 00:00:00 +0800

Catfish farming is one of the rapidly growing fisheries sectors in urban areas, including Palembang City. However, the success of this business is greatly influenced by the socio-economic conditions of the farmers. A common problem faced is the lack of information about the socio-economic characteristics of catfish farming households, which can serve as a basis for policy formulation in developing aquaculture businesses. This study aims to identify the socio-economic characteristics of catfish farming households in Palembang City.This research uses a descriptive method and collects data through questionnaires and direct interviews with farmers in the districts of Plaju, Sematang Borang, Gandus, and Sukarami. The results indicate that 63% of farmers have completed senior high school education, 43% are in the productive age range of 41–50 years, and 51% have less than 10 years of work experience. Most farmers (70%) own farming land measuring 1,100–2,000 m², classified as medium-scale enterprises. Economically, 53 respondents earn additional income from agricultural activities such as patin fish farming, while 47 respondents earn income from non-agricultural sectors. The average monthly operational cost of catfish farming reaches IDR 10,887,512, dominated by variable costs amounting to IDR 8,839,525. These findings reflect the importance of understanding socio-economic conditions in the sustainable development of catfish farming businesses.

THE USE OF CASSAVA PEEL AND VINEGAR FERMENTATION SOLUTION ON THE SHELF LIFE OF RED TILAPIA FILET BASED ON THE NUMBER OF MICROBES AT LOW TEMPERATURE STORAGE

Annisa Nur Maharani, Evi Liviawaty , Ayi Yustiati, Rusky Intan Pratama — Fri, 22 Aug 2025 00:00:00 +0800

Tilapia filet is a fishery product that is widely favored because of its high protein content and ease of processing. However, this product has a relatively short shelf life, so natural preservation efforts are needed to extend its shelf life. This study aims to determine the optimal concentration of vinegar in the fermentation process of cassava peels to extend the shelf life of red tilapia fillets based on the number of bacteria during low-temperature storage. This research was carried out at the Fisheries Product Processing Laboratory, Biotechnology Laboratory, Aquaculture Laboratory, Faculty of Fisheries and Marine Sciences, Padjadjaran University in February 2024. This study was carried out by soaking red tilapia fillets using a fermented solution of cassava peel with different vinegar concentrations, consisting of 5 treatments, namely 0%, 0.5%, 1%, 1.5%, 2% and stored at low temperatures (5⁰-10⁰ C). The parameters observed were the number of bacterial colonies, and the degree of acidity (pH). The concentration of 0% observation was carried out on the 1st, 3rd, 6th, 7th, 8th, 9th day while the concentration of 0.5%, 1%, 1.5%, 2% was observed on the 1st, 4th, 7th, 8th, 9th, 10th, 11th, 12th and 13th days. Based on the results of the research that has been conducted, it can be concluded that a fermented solution of cassava peel with a vinegar concentration of 1% is the best to prolong red tilapia fillets based on the number of microbes and pH. The addition of 1% cassava peel fermentation solution can maintain the freshness of the fish until the 12th day with a total number of microbes of 3.3 x 10⁷with a pH value of 6.70

INTEGRATING SWOT AND AHP IN A PARTICIPATORY STRATEGY FOR DISSEMINATING FISHERIES PRODUCTIVITY INFORMATION IN SEGARA ANAKAN LAGOON, CILACAP REGENCY

Rose Dewi, Endang Hilmi, I Gede Suweda Anggana Putera — Fri, 22 Aug 2025 00:00:00 +0800

The Segara Anakan Lagoon (LSA) is a coastal region characterized by unique ecological features and a high level of biodiversity in its fishery resources. Functioning as the estuarine outlet of the Citanduy River Basin, the lagoon receives substantial freshwater inflow laden with high sediment loads. This natural dynamic, compounded by anthropogenic activities from surrounding communities, has led to ecological degradation manifested in declining water quality, reduction of the lagoon’s water body, and increased nutrient accumulation, which in turn triggers eutrophication. Consequently, the fishery resource potential has diminished, adversely affecting the welfare of local fishing communities, as evidenced by a growing trend of occupational shifts from fishing to farming. This community engagement study, grounded in scientific research, aims to mitigate the rate of ecological degradation while promoting behavioral transformation toward a conservation-oriented mindset as a strategic measure to enhance the livelihoods of fishers. The methodology encompasses the development of thematic maps based on in situ ecological analyses, a SWOT (Strengths, Weaknesses, Opportunities, Threats) analysis to identify the strategic conditions of the LSA area, and the application of the Analytical Hierarchy Process (AHP) to establish solution prioritization. All quantitative data obtained were disseminated to the local community through Focus Group Discussions (FGDs). Community perception and participation were evaluated using structured questionnaires, with subsequent statistical analysis performed to test the validity and reliability of the instruments. Through this participatory approach, it is anticipated that information on high-potential fishery zones and viable ecological management solutions can be effectively communicated, thereby enhancing the adaptive capacity of coastal communities for sustainable resource governance.

EFFECT OF CULTURING DEPTH ON THE GROWTH OF Euchema cottonii USING MODIFIED FLOATING NET CAGE METHOD IN JEPARA BAY

Fri, 22 Aug 2025 00:00:00 +0800

Seaweed farming is one of the most important aquaculture sectors in Indonesia, contributing significantly to the national economy. Among various species, Eucheuma cottonii is widely cultivated due to its high carrageenan content and industrial value. Optimizing environmental conditions, such as culturing depth, is crucial to improving growth performance and productivity. This study evaluated the effect of different culturing depths on the growth of E. cottonii using a modified floating net cage system in Jepara Bay. The experiment applied three depth treatments—25 cm (A), 45 cm (B), and 65 cm (C)—each with two replications. Seaweed growth was monitored over 49 days and assessed based on absolute weight and specific growth rate (SGR). Results showed that seaweed cultivated at 25 cm had the highest growth performance, with an absolute weight of 102.2 g and the highest SGR, whereas the lowest values were recorded at 65 cm. ANOVA analysis confirmed a significant effect of depth on growth (p < 0.05), supported by Duncan’s test indicating clear differences among treatments. Water quality parameters (temperature, salinity, pH, and dissolved oxygen) remained within optimal ranges, suggesting depth was the primary factor influencing growth. The findings highlight that shallower depths promote greater light penetration and photosynthetic efficiency, thus enhancing E. cottonii growth. A culturing depth of 25 cm is recommended for optimal productivity in similar cultivation systems.

THE EFFECT OF STRIPED CATFISH (Pangasius hypophthalmus) MEAT FLOUR ADDITION AS PROTEIN ENHANCER ON THE PREFERENCE LEVEL OF SWEET CRUSTY BREAD

Dinda Lestari Putri, Junianto Junianto, Atikah Nurhayati, Iis Rostini — Fri, 22 Aug 2025 00:00:00 +0800

Pangasius hypophthalmus is a potential source of animal protein to improve the nutritional content in food products, such as sweet crusty bread which is known to have relatively low protein content. This study aims to evaluate the effect of adding Pangasius hypophthalmus meat flour on the organoleptic characteristics of sweet crusty bread and to determine the best formulation based on the Bayes method. In thist study an experimental method was applied with 4 treatments (0%; 2,5%; 5%; 7,5%) and the parameters observed in this study are appearance, odor, taste, and texture. The data were analyzed using the Friedman test and the Bayes method. The results showed that the addition of Pangasius hypophthalmus fish meat flour had a significant effect on odor and taste (p<0,05), but did not have a significant effect on appearance and texture (p>0,05). The best formulation was obtained with the addition of 5% Pangasius hypophthalmus fish meat flour, resulting in the highest preference scores acoross all parameters: appearance (8.0), odor (7,9), taste (8,4), and texture (7,5). The analysis using the Bayes method showed that taste has the highest crierion weight of 0,55 in determining the panelists acceptance of sweet crusty bread.

RELATIONSHIP BETWEEN MANGROVE DENSITY AND ABUNDANCE OF SCYLLA SPP. IN PANTAI KELAPA MANGROVE TOURISM AREA, TUNGKAL I VILLAGEWEST TANJUNG JABUNG

Fri, 22 Aug 2025 00:00:00 +0800

This research was motivated by the ecological importance of mangrove ecosystems as natural habitats for mud crabs (Scylla spp.) and the suspected influence of mangrove density on the population of associated biota in the Mangrove Ecotourism Area of Pantai Kelapa, Tungkal I Village, West Tanjung Jabung. The main objectives of this study were to identify the types and density of mangroves, determine the species and density of mud crabs, analyze the relationship between mangrove density and mud crab density, and assess sediment composition. A descriptive analytical method was employed, using both primary and secondary data collection. The results revealed four species of mangroves (Sonneratia alba, Avicennia alba, Rhizophora mucronata, and Nypa fruticans) with total tree-level densities ranging from 366.66 to 766 individuals per hectare. Two species of mud crabs were identified (Scylla serrata and Scylla tranquebarica), with densities ranging from 200 to 566 individuals per hectare. The highest mud crab density was recorded at station 3, which also had the highest mangrove density. A simple linear regression analysis showed an R² value of 0.3226, indicating a weak correlation. These findings suggest that mangrove density has a limited and statistically insignificant influence on the density of mud crabs in the study area.

POTENTIAL OF PLANT EXTRACTS AS ANTIBACTERIAL AGAINST Vibrio parahaemolyticus: A LITERATURE REVIEW

Hosia Anisa, Muhamad Amin, Akhmad Taufiq Mukti, Gunanti Mahasri — Fri, 22 Aug 2025 00:00:00 +0800

Aquaculture faces serious threats, one of which is infectious disease caused by Vibrio parahaemolyticus bacteria. These bacteria have shown antibiotic resistance and cause significant economic losses. The need for safe and sustainable antibacterial alternatives is crucial given the negative impact of using synthetic antibiotics. This review explores the potential of Shorea beccariana, Uncaria gambir, and Swietenia macrophylla as natural antibacterial agents against Vibrio parahaemolyticus. A systematic descriptive study method was used to integrate primary literature. Results showed that V. parahaemolyticus is a pathogenic Gram-negative bacterium with a complex virulence mechanism. Various studies have confirmed the antibacterial activity of plant secondary metabolites, such as flavonoids, tannins, and terpenoids, against Vibrio spp. Although the specific effectiveness of these three plants against V. parahaemolyticus has not been widely studied, the bioactive compounds identified in their extracts show strong potential. These compounds work by damaging the integrity of bacterial cells and disrupting their metabolism, offering a promising natural solution for vibriosis control.

CARBON FOOTPRINT STUDY ON COAL-BASED ENERGY SYSTEMS IN THE FISHERIES PROCESSING INDUSTRY IN BALI

Fri, 22 Aug 2025 00:00:00 +0800

CORRELATION OF AGE AND WORKING PERIOD TOWARDS PRODUCTIVITY IN THE CRAB (Portunus Pelagicus) PEELING PROCESS AT THE HARIYANTO MINIPLANT, LABUHAN MARINGGAI, EAST LAMPUNG

Fri, 22 Aug 2025 00:00:00 +0800

The purpose of this study was to analyze the influence of age and length of service on employee productivity in the crab peeling process. The product observed was peeled crab meat as a raw material for canned crab canning. The practical method used was observation of the crab peeling process flow, as well as observation of the influence of age and length of service on employee work productivity by also observing the yield produced. The results showed that the correlation between age and length of service in peeling had no correlation with productivity in crab peeling. The proportion of meat included jumbo meat of 4.5%, claw meat of 6.4%, flower 9.9%, and special 6.4%. The yield produced from crab peeling was 37.78%.

EVALUATION OF SPAWNING IN ASIAN REDTAIL CATFISH (Mystus Nemurus) BROODSTOCK FED WITH GOLDEN APPLE SNAIL (Pomacea Canaliculata)

Alfito Ramanda Bakti, Aldi Huda Verdian, Kurnia Faturrohman, Mujiono Mujiono — Fri, 22 Aug 2025 00:00:00 +0800

This study aims to evaluate the effects of feeding golden apple snails (Pomacea canaliculata) on the growth and gonad development of prospective broodstock of Asian Redtail Catfish (Mystus nemurus). The background of the research is based on the declining population of Asian Redtail Catfish in the wild due to overexploitation, necessitating effective aquaculture efforts with attention to broodstock nutrition. Golden apple snails were chosen as an alternative feed due to their high protein and nutrient content, as well as their abundant availability and cost-effectiveness. The research method was experimental, comparing two treatment groups: the first group was fed golden apple snails, and the second group was given commercial pellets as a control. The observed parameters included egg diameter, fecundity, fertilization rate (FR), hatching rate (HR), survival rate (SR), and water quality. The fish were reared for three months in aquaculture ponds with periodic water quality monitoring. The results showed that feeding golden apple snails had a significantly positive impact on the reproductive performance of Asian Redtail Catfish. The snail-fed group exhibited higher fecundity (averaging 130,678 eggs) compared to the pellet-fed group (91,025 eggs). Additionally, the snail-fed group had superior FR (92%), HR (87%), and SR (79%) compared to the pellet-fed group (FR 88%, HR 81%, SR 76%). The egg diameter from snail-fed broodstock was larger (2.01 ± 0.14 mm) than that of the pellet-fed group (1.61 ± 0.04 mm), indicating better egg quality. Based on these findings, it was concluded that golden apple snails are effective as an alternative feed for enhancing the reproductive productivity of Asian Redtail Catfish. The nutrients in the snails, particularly protein, fats, and essential amino acids, play a crucial role in supporting gonad development and egg quality. This study recommends the use of golden apple snails in Asian Redtail Catfish aquaculture, with the suggestion that further research be conducted to determine the optimal dosage and feeding strategy. The implementation of these findings is expected to support sustainable Asian Redtail Catfish farming and improve the availability of high-quality fry.

REVIEW: COMPARATIVE SYSTEM ANALYSIS OF OYSTER (Crassostrea sp.) BREEDING IN JAPAN AND INDONESIA

Luthfi Naufal Ramadhan, Junianto Junianto — Fri, 22 Aug 2025 00:00:00 +0800

Oysters (Crassostrea sp.) are high-value aquaculture commodities with significant economic and ecological potential. Japan and Indonesia are both maritime countries with vast marine resources, yet they differ considerably in their oyster farming systems. This study aims to conduct a comparative analysis of oyster cultivation systems in the two countries, focusing on farming methods, technology, environmental management, policy support, and productivity. A qualitative descriptive approach was employed through a literature review of various scientific sources and secondary data published over the past ten years. The results show that Japan has developed a modern and sustainable farming system, utilizing automation, real-time water quality monitoring, and strong, integrated policy support. In contrast, Indonesia still relies on traditional farming methods, with limited access to technology and weak environmental management, while policy implementation remains suboptimal. This comparison is essential as a foundation for evaluating and formulating strategic development plans for oyster aquaculture in Indonesia. A collaborative effort between the government, academics, and industry stakeholders is needed to strengthen the transition toward an efficient, adaptive, and sustainable oyster farming system in the future.

ECOLOGICAL RELATIONSHIP BETWEEN MANGROVES AND CRABS IN THE MANGROVE FOREST OF KETAPANG INDAH VILLAGE, NORTH SINGKIL SUBDISTRICT ACEH SINGKIL REGENCY

Fri, 22 Aug 2025 00:00:00 +0800

Mangrove forests are one of the important ecosystems in coastal areas. The existence of mangrove crabs is greatly affected by the condition of the surrounding mangrove ecosystem. The objectives of the study were to (1) analyze the level of mangrove and crab diversity; (2) analyze mangrove and crab density; (3) analyze the distribution pattern of mangrove and crab communities; (4) analyze the ecological relationship between mangroves and crabs. Mangrove sampling research method with purposive sampling method. Mangrove crab sampling using random sampling method. The results of the study showed that mangrove diversity found 4 species namely; Avicennia marina, Rhizophora mucronata, Rhizophora apiculata, and Sonneratia alba, crab diversity there are 3 species namely; Scylla serrata, Scylla olivacea, and Scylla paramamosin. Mangrove density was relatively high and ranging from 4000-4466,67 ind/ha and crab density ranging from 3,00-3,67 ind/m2. The distribution of mangroves and crabs as a whole has a uniform distribution. Environmental factors that have the most influence on crab density are temperature and substrate factors. The temperature at the study site ranged from 28,47-28,77°C and the substrate at the study site was clay or sandy clay.

ANALYSIS THE INCREASING OF VANAME SHRIMP PRODUCTIVITY THROUGH SIMORIKA IN SUKADANA VILLAGE, NORTH LOMBOK

Handri Jurya Parmi, Muslihuddin Aini — Fri, 22 Aug 2025 00:00:00 +0800

This study aims to analyze the effect of the implementation of the Water Quality Monitoring and Control System (SIMORIKA) on increasing the productivity of Vaname shrimp cultivation in Sukadana Village, North Lombok Regency. SIMORIKA is a technology-based innovation that allows farmers to monitor water quality in real-time, so that cultivation decisions can be made quickly and accurately. The research method used is a quantitative approach with a pre-experimental design using a one-group pretest-posttest model. The results showed that after the implementation of SIMORIKA, there was a significant increase in Vaname shrimp productivity, as measured by the survival rate (SR), harvest weight, and feed efficiency. These findings indicate that monitoring technology such as SIMORIKA has great potential in supporting the sustainability and efficiency of the aquaculture sector.

THE ADDITION OF SKIPJACK FISH FLOUR AS A SOURCE OF PROTEIN ON TORTILLA CHIPS PREFERENCE LEVEL

Fri, 22 Aug 2025 00:00:00 +0800

Innovations to increase protein content in tortilla chips can be achieved by adding skipjack tuna flour. This study aims to analyze the percentage of skipjack tuna flour addition in the production of tortilla chips that are most preferred by panelists and to analyze the proximate composition of the most preferred tortilla chips. This study was conducted at the Fisheries Product Processing Laboratory, Faculty of Fisheries and Marine Sciences, University of Padjadjaran, and the Laboratory of PT Saraswanti Indo Genetech in February 2025. The research method used was experimental with 4 treatments and 25 semi-trained panelists as replicates. The treatments involved adding skipjack tuna flour to tortilla chips at levels of 0%, 7.5%, 10%, and 12.5%. The parameters observed were organoleptic characteristics (appearance, aroma, texture, taste) and chemical characteristics (protein content, ash content, fat content, moisture content, and carbohydrate content). The data obtained will be analyzed using the Friedman test and Bayes' equation. The study concluded that the addition of 12.5% skipjack tuna flour was the most preferred treatment, with an average score of 6.28 for appearance, 7.64 for aroma, 8.04 for texture, and 8.84 for taste. The alternative value for the treatment with 12.5% skipjack tuna flour addition was 8.21. The proximate analysis results of the most preferred tortilla chip treatment showed a protein content of 7.56%, ash content of 1.82%, fat content of 20.67%, moisture content of 4.35%, and carbohydrate content of 65.60%.

THE INFLUENCE OF STRIPED CATFISH MEAT FLOUR ADDITION ON THE SENSORY ATTRIBUTES AND HEDONIC PREFERENCE OF SPRITZ COOKIES

Rif'atus Solihah, Junianto Junianto, Atikah Nurhayati, Iis Rostini — Fri, 22 Aug 2025 00:00:00 +0800

Spritz cookies are one of the most popular types of dry cookies, favored by many due to their sweet taste and crispy texture. Innovation in the processing of spritz cookies can be carried out by incorporating other food ingredients, one of which is striped catfish meat flour. The addition of this ingredient is expected to provide flavor variation and different sensory characteristics. This study aimed to determine the effect of adding striped catfish meat flour on the consumer acceptability of spritz cookies and to identify the most preferred percentage of addition. The research used an experimental method with four levels of striped catfish meat flour addition: 0%, 2.5%, 5%, and 7.5%. The observed parameters included hedonic tests color, aroma, taste, and texture. The data were analyzed using non-parametric statistical methods, namely the Friedman test. The results showed that spritz cookies with 5% striped catfish meat flour received the highest preference scores, with color at 7, aroma at 9, texture at 9, taste at 9, and an alternative value of 8.68. Based on these findings, it is recommended to use 2.5–5% striped catfish meat flour in spritz cookie production to maintain consumer acceptance.

THE EFFECT OF MILKFISH (Chanos chanos) BONE FLOUR FORTIFICATION ON THE PHYSICOCHEMICAL CHARACTERISTICS AND ACCEPTABILITY OF WHITE BREAD

Ririn Mahfiroh, Adriana Monica Sahidu, Dwi Yuli Pujiastuti — Fri, 22 Aug 2025 00:00:00 +0800

Milkfish bone waste is a by product of the fisheries industry that has not been fully utilized, despite its high calcium and protein content, making it a potential ingredient for food fortification. Meanwhile, white bread, a widely consumed food in the community, is known to have low calcium content. This study aims to evaluate the effect of adding milkfish bone flour on the physicochemical characteristics and consumer acceptability of white bread. The research was conducted using a Completely Randomized Design (CRD) with five levels of fortification concentration: 0%, 2.5%, 5%, 7.5%, and 10%, each with four replications. The parameters analyzed included moisture, protein, ash, and calcium content, as well as texture attributes such as hardness, cohesiveness, springiness, and chewiness, along with hedonic tests for color, taste, texture, and aroma. The results showed that fortification with milkfish bone flour had a significant effect (p<0.05) on most parameters, except for color. Increasing the fortification concentration resulted in higher protein, ash, and calcium levels, while moisture content and certain texture parameters decreased. The best treatment was found at 5% fortification (P2), based on Bayes analysis, with the highest scores across all parameters. The addition of 5% milkfish bone flour was proven to enhance the nutritional content of white bread without reducing consumer acceptance, while also promoting the functional and economic utilization of fishery waste.

TYPE COMPOSITION AND INDEX OF SPECIES DIVERSITY OF GROUPER (Serranidae) LANDED AT LEWOLEBA FISH AUCTION SITE

Lasmi Lasmi — Fri, 22 Aug 2025 00:00:00 +0800

Lembata Regency marine waters have a high level of biota diversity. The purpose of the study was to determine the species composition and diversity index of grouper (Serranidae). Data analysis was carried out by calculating the index value of species diversity, species evenness and species dominance. The results showed that the species composition landed at Lewoleba Fish Auction Site (TPI) was dominated by Cephalopholis boenak species at 10%, followed by Variola louti, Epinephelus ongus, Epinephelus fasciatus, and Cephalopholis miniata at 9%, then followed by Plectropomus leopardus, Epinephelus coeruleopunctatus, and Anyperodun leucogrammicus at 8%, followed by Plectropomus oligacanthus, Plectropomus areolatus, and Epinephelus macrospilos at 7%, followed by Cephalopholis sonnerati at 6%, and the last was Epinephelus undulosus at 3%. The diversity index (H') varied from 2.452 to 2.548. Based on the index value, the diversity index category is moderate (1 < H' < 3). The diversity index (E) varied from 0.956 to 0.993. Based on the index value, the evenness index category is high or evenly distributed. The dominance index (E) varies from 0.080 to 0.093. Based on the index value, the dominance index category is low or almost no dominance.

ADDITION OF SEAWEED FLOUR (Eucheuma cottonii) AS FIBER SOURCE AGAINST CENDOL LEVEL OF FLAVOR

Fazira Parliamentary, Iis Rostini, Isni Nurruhwati, Rusky Intan Pratama — Fri, 22 Aug 2025 00:00:00 +0800

This study aims to determine the effect of adding Eucheuma cottonii seaweed flour on the chemical and organoleptic characteristics of cendol. This research was conducted at the Fisheries Products Processing Laboratory of the Faculty of Fisheries and Marine Sciences of Padjadjaran University, as well as at the SIG Laboratory (PT. Saraswanti Indo Genetech) Bogor. The research method used was an experimental method using 4 seaweeds concentration treatments of 0%, 5%, 10%, and 15%. A total of 25 semi-trained panelists were tested for organolpetic testing. The parameters include the degree of favorability, aroma, taste, and texture as well as the levels of water, protein, fat, ash, dietary fiber. Organoleptic test results data were analyzed with Friedman and Bayes tests, while chemical tests were analyzed in a comparative descriptive manner. The results of this study show that adding 5% Eucheuma cottonii seaweed flour to cendol is the most preferred treatment based on organoleptic parameters with an average likeness value (7,3); aroma (6,8); taste (7,0); and texture (6,8); and producing a proximate composition of water (91,55%), ash (0,16%); protein (0,59%); fat (0,02%); carbohydrate (7,70%); and dietary fiber (1,94%).

THE EFFECT OF DIFFERENT FISHING TIMES ON THE CATCH OF GILL NETS IN THE RIVER BATANGHARI RIVER THAT CROSSES THE SUB-DISTRICT OF MUARA TEMBESI DISTRICT BATANGHARI

Fri, 22 Aug 2025 00:00:00 +0800

Batanghari Regency, Jambi Province, has fisheries potential supported by Batanghari River, the longest river in Sumatera Island. In Muara Tembesi District, especially Tanjung Pasir Village, some people use gill nets to catch fish in the morning and evening, although the optimal fishing time is not yet known. This study aims to determine the effect of different fishing times on the catch of gill nets in the Batanghari River which crosses Muara Tembesi District, Batanghari Regency. The research was conducted in Tanjung Pasir Village, Muara Tembesi District on December 26, 2024 to April 12, 2025. The method used was experimental fishing, the fishing gear used was two units of ¾ inch gill nets. The observed variables include the type, number, weight, length and height of fish, as well as environmental parameters such as temperature, pH, and depth. Data were analyzed using t-test. The results showed that the morning time produced a catch of 1,161 fish weighing 6,461 grams, an average of 77.40 fish weighing 430.73 grams per repetition. While the afternoon produced 454 fish weighing 2,571 grams, an average of 30.20 fish weighing 171.40 grams per repetition. The results of the t-test analysis showed that fishing time had a significant effect on the number and weight of catches (P<0.05). It can be concluded that the operation of gill nets in the morning produces higher catches, both in terms of number (tails) and total weight of the catch, compared to the afternoon time.

SANITATION AND HYGIENE AT FISH AUCTION PLACE AND ORGANOLEPTIC QUALITY ANALYSIS OF LITTLE TUNA (Auxis rocchei Risso, 1810) IN MUARA ANGKE, NORTH JAKARTA

Thania Tiaraningsih, Rusky Intan Pratama, Yuniar Mulyani, Iis Rostini — Fri, 22 Aug 2025 00:00:00 +0800

The Fish Auction Place (FAP) is a facility that supports fishermen in distributing their catches. Muara Angke FAP is one of the active auction places in Jakarta. Fish is a perishable commodity that requires proper handling to maintain its quality, including hygiene and sanitation facilities, especially to preserve the quality of little tuna (Auxis rochei). This study aims to analyze the sanitation and hygiene conditions at Muara Angke FAP based on Minister of Marine Affairs and Fisheries Decree No. 1 of 2007 (KEP. KP 01/MEN/2007), assess the organoleptic quality of little tuna, and analyze the relationship between sanitation-hygiene and tuna quality. The research was conducted from January to February 2025 using a case study method. Sanitation and hygiene data were obtained using purposive sampling, while little tuna samples for organoleptic and pH tests were taken using simple random sampling. Spearman correlation was used to analyze the relationship between FAP sanitation-hygiene and tuna quality. The results show that most sanitation and hygiene aspects meet the standards, although some deficiencies remain in facilities such as handwashing stations, toilets, environmental cleanliness, and warning signs. The organoleptic test yielded a final score of 7, indicating that frozen little tuna at Muara Angke FAP is still considered fresh. The pH ranged from 5.3 to 5.7, also indicating freshness. Spearman correlation analysis showed a weak positive relationship (r= 0.281) with no significant correlation (p= 0.231) between sanitation-hygiene and the quality of little tuna.

ASSESSMENT OF WASTE HANDLING PRACTICES ON SHIPS OPERATING IN THE COASTAL REGION OF EAST NUSA TENGGARA

I Made Aditya Nugraha — Fri, 22 Aug 2025 00:00:00 +0800

Marine environmental pollution due to shipping activities is a strategic issue in coastal area management. To address this, the Indonesian Government issued Regulation of the Minister of Transportation Number 29 of 2014 as a guideline for preventing pollution from ships. This study aims to evaluate ship waste management practices in the coastal area of East Nusa Tenggara, especially on passenger ships that operate regularly, and to assess the implementation of these regulations. The methods used include direct observation, interviews with ship crews, and literature studies on national regulations and international conventions such as MARPOL 73/78. The results of the study indicate that ships have implemented waste management according to standards, both for solid waste (organic and inorganic) from the deck area and liquid waste (oil and sludge) from the engine room. The management stages include collection, storage, unloading, and transportation to facilities on land. The ship also has a pollution prevention certificate as stipulated in Article 57 of Regulation of the Minister of Transportation 29 of 2014. This implementation shows compliance with regulations and increased awareness of ship crews towards preserving the marine environment. These findings can be a reference for ship waste management practices that support sustainable maritime development.

INCOME OF SALT FARMERS IN RANDANGAN DISTRICT, POHUWATO DISTRICT, GORONTALO PROVINCE, TOMINI BAY AREA

Munirah Tuli, Funco Tanpu, Wahhyuda Mahendra Tampoy — Fri, 22 Aug 2025 00:00:00 +0800

One of the potentials of the marine and fisheries sector that can be explored is salt. Salt is a basic need and daily consumption of the Indonesian people. The purpose of this study was to determine the Level of Income of Salt Farmers and Salt Marketing Margins in Siduwonge Village, Randangan District, Pohuwato Regency. This study is useful for providing information or knowledge that can be used as a reference for the Level of Income of Salt Farmers and Salt Marketing Margins. The study was conducted on July 20, 2020 - August 20, 2020 in Pohuwato Regency, Gorontalo Province. The location of the data collection activity was carried out in Siduwongi Village, Randangan District, Pohuwato Regency. The method used in collecting data in field work practices is the survey method. Based on the results of the study in Siduwonge Village, Randangan District, Pohuwato Regency, it can be concluded that the level of net income of salt farmers in each group, namely, Karya Baru Rp. 4,348,000, Surya Motilango Rp. 3,529,000, Bintang Poliyama Rp. 3,172,000, Pelangi Rp. 2,420,000, Anggrek Rp. 2,162,600, Bintang Segiri Rp. 2,118,500, and Beringin Rp. 1,867,000. The average feasibility of the salt farmer business in Siduwomge Village is very feasible because the R/C in each group is more than 1

CASE STUDY: BUSINESS ANALYSIS IN A COMMERCIAL NURSERY FARM FOR HYBRID GROUPER FISH (Epinephelus fuscoguttatus x Epinephelus lanceolatus) IN SITUBONDO EAST JAVA

Apriana Vinasyiam, Rizkhni Nuril Hayati, Belinda Astari — Fri, 22 Aug 2025 00:00:00 +0800

The nursery phase of hybrid grouper (kerapu cantang; Epinephelus fuscoguttatus x Epinephelus lanceolatus) farming is a crucial business segment, as it serves as a key link in the seed supply chain for grow-out operations. This study aims to analyze the profitability aspects of nursery operations at a commercial farm in Indonesia, using a trading enterprise (UD) in Situbondo, East Java, as a model. The research was conducted by collecting both primary and secondary data through interviews. Observations revealed an average fish survival rate of 86.5%, resulting in an estimated annual production of 99,000 fingerlings using a total of 14 nursery tanks measuring 4x3x1 m³ each. The largest investment cost components were the nursery tanks (40%) and water installation systems (33%). The main fixed and variable cost components were employee salaries (69%) and feed (84%), respectively. Financially, the nursery operation is profitable, generating an annual profit of IDR 274,338,923 and an R/C ratio of 1.59. The investment payback period is estimated at 1.68 years (20 months). Optimization of operations is recommended through production scale-up in the second year, by reducing feed costs, or by increasing the fry production.

THE RELATIONSHIP BETWEEN THE STRUCTURE COMMUNITY PLANKTON AND THE QUALITY OF THE W OF THE BEROK MUARA RIVER, CENTRAL BANGKA

Nurliana Isroq Dly, Eva Utami, Aditya Pamungkas — Fri, 22 Aug 2025 00:00:00 +0800

Plankton are the smallest biota that drift and inhabit marine and fresh waters. Plankton have a variety of responses and are susceptible to changes in water quality. The purpose of this research is to find out and analyze the structure of the plankton community and also the quality of the waters and their relationship using spearman correlation analysis. The time and place of the research was carried out of October 2022 in the waters of the Berok Estuary, Central Bangka, as many as 6 station points using the plankton net tool with the vertical method. Plankton samples were identified under a binocular microscope with three repetitions. The results showed that 67 species from 39 genus. Lowest plankton abundance at station 1, namely 82 cells/l and the highest at stations 5 and 6, namely 1,310 cells/l and 1,327 cells/l. The results of the analysis of the lowest plankton diversity index were at station 1, namely 1.945 and the highest at station 5, namely 3.265. The lowest uniformity index at station 1 is 0.620 and the highest at station 2 is 0.877. The lowest dominance index at station 5 is 0.055 and the highest at station 1 is 0.183. several water parameters have been tested according to quality standards, except brightness, nitrate and orthophosphate, will the appropriate parameters have been optimal for marine biota. The relationship of water quality including orthophosphate and current velocity a significant relationship to the plankton community structure in the waters of the Berok Estuary, Central Bangka

DEVELOPMENT OF BIOFLOC FISH FARMING BUSINESS IN PALU CITY, CENTRAL SULAWESI PROVINCE

Saprudin Mustapa, Hasmari Noer, Fachrudin A. Yahya — Fri, 22 Aug 2025 00:00:00 +0800

The fisheries sector plays a crucial role in food security and the economy, particularly through aquaculture. One rapidly growing method is the biofloc system, which enhances production efficiency by utilizing microorganisms to process organic waste into biomass that can be consumed by fish. This technology not only improves feed efficiency but also reduces environmental impact. Palu City holds great potential for developing biofloc-based aquaculture due to its abundant water resources and supporting infrastructure.

This study aims to identify the factors influencing biofloc aquaculture businesses in Palu City, analyze their technical and economic feasibility, and formulate sustainable development strategies. The research employs a descriptive qualitative and quantitative approach using purposive sampling techniques. The applied analysis includes descriptive analysis, business feasibility analysis (BCR, BEP, and PP), marketing margins, and SWOT analysis.

The findings of this study are expected to provide strategic recommendations for fish farmers and stakeholders to develop biofloc systems more effectively and sustainably in Palu City.

ANALYSIS OF THE EFFECT OF FISHING TIME ON TUNA HAND LINE CATCHES IN THE MALUKU SEA

Fri, 22 Aug 2025 00:00:00 +0800

Girian Bawah Village fishermen use handlines in tuna fishing activities. This study aims to determine the efficiency of fishing time while fishing on the number of tuna handline catches. This study uses catch data with fishing areas in the Maluku Sea during October-November 2022 using the fishing experiment method in a 3-repeat time period, namely morning (05.00 - 09.59), afternoon (10.00 - 14.59) and evening (15.00 - 19.59), then analyzed descriptively quantitatively. Data analysis used statistical tests (Normality Test, Homogeneity Test, ANOVA Test and BNT Test) to see the best time for catching. The results of the normality test obtained normal values, the results of the homogeneity test obtained homogeneous values, the results of the correlation test, have a strong relationship. The results of the ANOVA test show that there is an influence between fishing time and the number and weight of catches. The results of the BNT test, obtained the best time for catching using a tuna handline is the time group 05.00-09.59 WITA or morning time.

MEASUREMENT OF TARGET STRENGTH VALUES OF CATFISH (Clarias batrachus) USING SIMRAD EK15 HYDROACOUSTIC METHOD UNDER CONTROLLED CONDITIONS

Hendi Santoso, Sri Pujiyati, Totok Hestirianoto, Indra Jaya, Asep Priatna — Fri, 22 Aug 2025 00:00:00 +0800

Catfish (Clarias batrachus) is one of the main commodities in Indonesia's freshwater aquaculture industry. Accurate monitoring of fish growth and population is crucial to improving production efficiency and sustainability. Conventional methods such as physical weighing are often inefficient and may cause stress to the fish. Therefore, hydroacoustic technology offers a promising alternative due to its non-invasive nature and ability to provide real-time data. This study aims to estimate the Target Strength (TS) of catfish using hydroacoustic methods with a SIMRAD EK15 instrument under controlled environmental conditions. The measurements were conducted in a test tank where physical parameters such as temperature, salinity, and water clarity were maintained consistently to ensure reliable results. The experiment involved 13 catfish of various sizes, with body lengths ranging from 8.1 cm to 19.3 cm and weights from 4 to 37 grams. The measured TS values ranged from -64.81 dB to -59.89 dB. The results indicated a positive correlation between TS and both fish length and weight, suggesting that larger fish produced stronger acoustic backscatter signals. This study provides a valuable foundation for the application of hydroacoustic methods in catfish population surveys, both in controlled environments and natural waters. The findings can be adapted to support more efficient and sustainable fish farming practices through real-time, technology-based monitoring systems.

THE EFFECT OF STRIPED CATFISH (Pangasius hypophthalmus) MEAT FLOUR ON THE PREFERENCE LEVEL OF MACARON SHELL

Wanda Sri Rahayu, Junianto Junianto, Atikah Nurhayati, Iis Rostini — Fri, 22 Aug 2025 00:00:00 +0800

Striped catfish meat flour contains a valuable source of protein that can be utilized as an additive in the production of baked goods such as macaron shell. This study aims to determine the right amount of addition of striped catfish meat flour (Pangasius hypophthalmus) in making macaron shell so as to produce the most preferred product. This research was conducted from December 2024 to May 2025 at the Fishery Product Processing Technology Laboratory, Joint Building of Fisheries and Agriculture, Fishery Product Processing Laboratory, Building 2 FPIK Unpad, and Laboratory Services UPTD Testing and Application of Quality of Fishery Products Cirebon. The method used in this study is an experimental method, namely the manufacture of macaron shell which is given the addition of striped catfish meat flour with 4 different addition treatments (0%, 2.5%, 5% and 7.5%) with 25 semi trained panelists as replicates to determine the level of panelist preference for macaron shell.

ANALYSIS OF THE EFFECT OF HALOGEN LAMP REFLECTOR SHAPES ON LIGHT ILLUMINATION AND CATCH YIELD OF SCOOP NET FISHERIES IN CILACAP WATERS

Fajar Adiyanto, Aristi Dian Purnama Fitri — Fri, 22 Aug 2025 00:00:00 +0800

Scoop net nets or Caduk nets are small pelagic fishing devices operated in the waters of Cilacap. The net scoop net is operated with a halogen lamp tool. To focus on the light, fishermen use a reflector (container). The shape and size of the refractor used by fishermen varies, there are two forms of reflectors that are often used by fishermen, namely cone and concave reflectors. The aim of the study was to determine the effect of using cone and concave reflectors on catches. The method used is descriptive method. While the method of data collection is observation, documentation and interviews with related parties. The research was condusted on August 2023. The results showed that the light illumination values in dim, standard and maximum conditions in cone reflectors were 20 lux, 4,970 lux and 6,970 lux, respectively. Whereas the concave reflector is 13 lux, 3,470 lux and 5,170 lux. The catch composition for 15 trips, namely from the types of white anchovy (Stolephorus indicus), anchovy rice (Stolephorus comersonni), lemuru (Sardinella lemuru), tembang (Sardinella fimbriata). The catch weight is the use of a cone reflector, namely 1,360 Kg teri putih, teri nasi 197 Kg, lemuru 198 Kg, and tembang 981 Kg. As for the concave reflector, the catch is obtained, 1,270 Kg white teri, 48 Kg teri nasi, 376 Kg Lemuru, and 805 Kg tembang. Based on statistical tests obtained that the use of different forms of reflector does not affect the acquisition of catches during the capture process. The significance value is 0.768 > 0.05, so H0 is accepted. This shows that there is no difference in the use of cone reflectors and concave to the catch on the scoop net.

EVALUATING THE POTENTIAL OF TUBIFEX MEAL AS A FISH MEAL SUBSTITUTE IN THE DIETS OF NILE TILAPIA (Oreochromis niloticus) FRY

Dandi Diana Yusup, Tohap Simangunsong, Purnama Sukardi — Fri, 22 Aug 2025 00:00:00 +0800

The high cost and limited availability of fishmeal in aquaculture feed formulations have prompted the search for sustainable and affordable alternative protein sources. This study aimed to evaluate the effects of substituting fishmeal with silk worm (Tubifex sp.) meal on the growth performance, feed utilization, and survival rate of Nile tilapia (Oreochromis niloticus) fry. A completely randomized design (CRD) was used with four dietary treatments: P1 (control, 0% Tubifex), P2 (15%), P3 (25%), and P4 (35%), each with three replications. Fish were fed twice daily for 30 days, and growth parameters were measured weekly. Results showed that the inclusion of Tubifex meal significantly improved the final weight, specific growth rate (SGR), average daily gain (ADG), and feed efficiency (FE), particularly in P3 and P4. The highest SGR (2.28%/day), ADG (0.016 g/day), and FE (61.93%) were recorded in the P4 group. Survival rate also improved, reaching 82.22% in P4 compared to 51.11% in the control. Water quality parameters remained within optimal ranges, indicating no adverse environmental impact from Tubifex inclusion. The findings suggest that Tubifex meal is a viable protein source that can replace fishmeal by up to 35% in tilapia fry diets. Its application offers nutritional, economic, and ecological benefits, making it a promising component in sustainable aquafeed development.

GROWTH PERFORMANCE AND SURVIVAL RATE OF VANNAMEI SHRIMP POST LARVAE (Litopenaeus vannamei) AT STAGES PL 4-10 FED WITH ARTEMIA SP. AND ARTIFICIAL FEED

Ginanjar Ginanjar, Nuhman Nuhman, Hari Subagio, Ninis Trisyani, Billy Saputra — Fri, 22 Aug 2025 00:00:00 +0800

One of the main challenges in the production of vannamei shrimp larvae is the low quality of the resulting post larvae. This is generally caused by the feed quality and nutritional content that do not adequately meet the optimal requirements of the post larvae. This study aims to evaluate the growth performance and survival of vannamei shrimp post larvae at PL 4-10 stages with feed treatments using Artemia sp. and artificial powder feed, as well as to determine the best type of feed. The study was conducted in May at CV. Sumber Hatchery Bangka using an experimental method with a Completely Randomized Design (CRD), consisting of three treatments and five replications: treatment A (100% natural feed with Artemia sp. nauplii), treatment B (100% artificial powder feed), and treatment C (a combination of 50% natural Artemia sp. nauplii and 50% artificial powder feed). Post larvae were stocked at a density of 20 individuals per liter, totaling 10,000 larvae per tank. Parameters observed included absolute weight gain, absolute length increment, survival rate, and water quality. Data were analyzed using ANOVA with a 95% confidence level followed by a Least Significant Difference (LSD) test. The results showed that treatment C produced the highest absolute weight gain (0.009±0.001 g), which was significantly different (p<0.05) from treatments A (0.008±0.001 g) and B (0.007±0.001 g). Treatment C also resulted in the highest absolute length increment (0.456±0.044 cm), significantly different from treatments A (0.394±0.032 cm) and B (0.386±0.047 cm). The highest survival rate was found in treatment A (96±0.038%), followed by treatment B (95±0.025%) and treatment C (91±0.037%). Water quality during the study remained within the optimal range according to SNI 8678-4:2021 standards for vannamei post larva maintenance. In conclusion, the combined feed treatment yielded the best growth performance, whereas 100% natural feed resulted in the highest survival rate.

CHARACTERISTICS OF TEMPE MADE FROM SEAGRASS SEEDS (Enhalus acoroides) USING A COMBINATION OF RICE FLOUR, WHEAT FLOUR, AND SOYBEAN TEMPE STARTER

Bernita Br Silaban, Tupan Tupan, Masita Lamani, Esterlina E.E.M. Nanlohy — Fri, 22 Aug 2025 00:00:00 +0800

The raw materials used for tempe production are highly diverse. In addition to soybeans, tempe can also be produced from seagrass seeds (Enhalus acoroides) using tempe starter culture. To accelerate fermentation, additional starters in the form of rice flour and wheat flour were used. This study aimed to determine the characteristics of tempe made from Enhalus acoroides seeds using rice flour and wheat flour starters in combination with soybean tempe flour. The ratio of soybean tempe flour to wheat flour (A1) and rice flour (A2) was 1:3. The combined starter was added at 20% of the total weight of seagrass seeds. The research employed an experimental method. The parameters analyzed included appearance, taste, aroma, and texture for subjective evaluation, and moisture content, protein, fat, ash, carbohydrate, calcium (Ca), iron (Fe), and lead (Pb) for objective analysis. The results showed that the use of wheat flour and rice flour starters combined with soybean tempe flour produced tempe with varied sensory values and chemical compositions. The sensory evaluation of Enhalus acoroides tempe yielded appearance scores ranging from 3,12 to 3,87 (like to very like), taste scores of 3,18-3,20 (like), aroma scores of 3,0-3,3 (like), and texture scores of 3,7-3,8 (very like). The chemical composition included moisture content ranging from 56,04-59,73%, ash 0,52-0,96%, fat 0,85-1,3%, protein 1,52-2,92%, carbohydrate 35,53-40,63%, calcium (Ca) 0,15-0,77 mg/L, iron (Fe) 8,22-8,73 mg/L, and lead (Pb) 0,002-0,125 mg/L. The use of rice flour starter contributed the most to the sensory characteristics, moisture, fat, protein, and iron content of tempeh, while the wheat flour starter was more dominant in increasing ash, carbohydrate, and calcium levels. The lead (Pb) content was also found to be below the maximum permissible limit, indicating that the tempeh produced in this study is safe for consumption.

ENHANCING GROWTH PERFORMANCE AND FEED EFFICIENCY OF JUVENILE GOURAMI Osphronemus gouramy FED A PAPAIN ENZYME AND PROBIOTIC-SUPPLEMENTED DIET

Fri, 22 Aug 2025 00:00:00 +0800

Gourami (Osphronemus gouramy) farming faces challenges, including slow growth rates and
high feed costs. This study aimed to evaluate the effects of probiotics, papain enzymes, and
their combination on the growth performance and feed utilization of gourami. The study was
conducted using a completely randomized design with four treatments and three replicates
each. The treatments consisted of a control group (feed without papain enzyme or probiotics),
treatment A (feed supplemented with 8 mL/kg probiotics), treatment B (feed supplemented
with 32.5 g/kg papain enzyme), and treatment C (feed supplemented with a combination of
0.25 g/kg papain enzyme and 15 mL/kg probiotics). Juvenile gourami with average weight of
5.82±0.09 g/fish were kept in nine fiberglass tank (3 m diameter and 1.2 m height) for 42 days
with a stocking density of 15 fish/m2. After 42 days of rearing, treatment C exhibited
significantly higher specific growth rate, protein efficiency ratio, and protein retention than the
other treatments (P<0.05), with values of 3.03±0.15%/day, 2.78±0.20%, and 44.71±3.06%,
respectively. The lowest feed conversion ratio was also observed in treatment C, with a value
of 0.94±0.06 (P<0.05). In conclusion, supplementation with 0.25 g/kg papain enzyme and 15
mL/kg probiotics in the feed enhanced growth performance and feed utilization in gourami.

CHARACTERIZATION OF QUALITY ON PEDADA FRUIT JELLY CANDY (Sonneratia caseolaris) WITH DIFFERENT ADDITION OF CARRAGEENAN

Fri, 22 Aug 2025 00:00:00 +0800

Jelly candy is a type of confectionery classified as a soft candy. The main ingredients used in making jelly candy include fruit juice, sugar, citric acid, and gelling agents. Carrageenan is one of the substances used in candy production due to its ability to form gels. The addition of carrageenan at the right concentration will result in jelly candy with a firm texture. The aim of this study was to determine the effect of different addition of carrageenan on the quality characteristics of pedada fruit (Sonneratia caseolaris) jelly candy. This research used a Completely Randomized Design (CRD) with 4 treatments and 5 replications. The treatments were P0 (15 grams of gelatin), P1 (10 grams of carrageenan), P2 (15 grams of carrageenan), and P3 (20 grams of carrageenan). The results showed that the addition of carrageenan had an effect on the physical, chemical, microbiological, and organoleptic characteristics of pedada fruit jelly candy. The treatment with 15 gram of carrageenan produced the best jelly candy according to the Indonesian National Standard (SNI), with the value of gumminess 308.08 gf, hardness 773.49 gf, gel strength 220.75 gf/cm², water content 16.07%, ash content 2.61%, reducing sugar 13.68% and total plate count 1.6×10² cfu/gram

THE EFFECT OF GIVING DIFFERENT TYPES OF NATURAL FEED ON THE ABSOLUTE LENGTH GROWTH OF GALAXY RASBORA FISH (DANIO MARGARITATUS) SIZE 1.5-2 CM IN EXPERIMENTAL TANKS

Alika Mahliana, Muhajir Muhajir, Nurul Hayati — Fri, 22 Aug 2025 00:00:00 +0800

Rasbora galaxy (Danio margaritatus) is a type of freshwater ornamental fish that has a fairly high economic value and is in great demand in the international market. This fish is included in the omnivorous group of animals that tend to be carnivorous and can consume natural feed or commercial feed. Natural feed has advantages including very high nutritional content, easy to obtain and cheaper prices when compared to commercial feed. The types of natural feed that can potentially be consumed by rasbora galaxy fish measuring 1.5-2 cm are Tubifex sp), Artemia sp and Daphnia sp. The purpose of this study was to determine the effect of providing different types of natural feed on the absolute length growth of rasbora galaxy fish (Danio margaritatus) measuring 1.5-2 cm in experimental tanks. This study used an experimental method with a Completely Randomized Design (CRD) consisting of 3 treatments and 9 replications. The treatment in this study was in the form of providing different types of natural feed. Treatment A; Tubifex natural feed, treatment B; Artemia sp natural feed and treatment C; Daphnia sp natural feed. The test animals used 1.5 - 2 cm galaxy rasbora fish with an average weight of 0.5 g/tail and an average initial length of 1.5 cm. The stocking density was 15 fish/liter, the experimental media used fresh water with a volume of 3 liters/tank. The results showed that treatment A gave the best results for the absolute length growth of 1.5 - 2 cm galaxy rasbora fish of 0.7 cm/tail. Water quality data obtained water temperature ranged from 26.0-27.0 0C, acidity levels ranged from 6.9-7.2 and dissolved oxygen ranged from 4.5 - 5.0 ppm.”

EVALUATION OF THE DIMENSION OF DRIFT GILLNET ON THE COMPOSITION AND SELECTIVITY OF CATCH IN THE WATERS OF ATAPUPU, BELU REGENCY, EAST NUSA TENGGARA

Fri, 22 Aug 2025 00:00:00 +0800

The waters of Atapupu have significant potential in the fisheries sector and play an important role in improving the welfare of coastal communities in Belu Regency. This study aims to evaluate the dimensions of drift gill nets and analyze the composition and selectivity of the catch. A descriptive quantitative method was used through field observations, interviews, and data analysis. The drift gill nets examined had a mesh size of 3.175 cm and a length of 27 meters, with upper shortening of 50% and lower shortening of 48%. The catch was dominated by flying fish (74.09%), with bycatch consisting of halfbeaks, needlefish, and scads. The diversity index (H’ = 0.68) and dominance index (C = 0.60) indicate that the nets have low selectivity, as they capture various fish species regardless of size or type. These findings are expected to serve as a basis for more selective and sustainable fishing gear management in the coastal waters of Atapupu.

OPTIMIZATION OF FEEDING STRATEGY AND ENVIRONMENTAL MONITORING IN SHORT-CYCLE BARRAMUNDI (Lates calcarifer) GROW-OUT USING COMMERCIAL DIETS

Nabila Aisyah Bella, Indra Lesmana — Fri, 22 Aug 2025 00:00:00 +0800

The integration of feeding strategies, monitoring systems, and environmental assessments within short-cycle aquaculture systems is crucial for achieving optimal productivity and sustainability in coastal ecosystems. However, very few studies have been conducted on the interplay of these factors within shorter production cycles. The current study aimed to investigate the growth performance, feed efficiency, and survival rate of Lates calcarifer cultured for 30 days in offshore floating net cages under an at-satiation feeding strategy supplemented with probiotics and multivitamins. Observational data were collected from field trials conducted at Balai Besar Perikanan Budidaya Laut (BBPBL) in Lampung, Indonesia. Fish were administered feed bi-weekly, while essential water quality parameters were recorded weekly. Key findings included a specific growth rate of 1.4% per day, absolute weight gain of 36.8 g, a feed conversion ratio of 1.4, and an average survival rate of 82.8%. Throughout the study period, water quality parameters remained optimal. These results suggest that short-cycle barramundi farming facilitates efficient and sustainable production when combined with adaptive feeding schedules informed by consistent environmental monitoring. This research offers practical recommendations for small-scale marine aquaculture enterprises, highlighting the importance of advanced precision feeding frameworks and digital technologies in coastal aquafarming regions.