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Faculty of Marine and Fisheries Universitas Syiah Kuala Jalan Meureubo No. 1, Kopelma Darussalam Banda Aceh, 23111, Indonesia
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INDONESIA
Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Published by Universitas Syiah Kuala
ISSN : 20897790     EISSN : 25026194     DOI : 10.13170/depik
Core Subject : Science, Education, Engineering,
Earth & Planetary Sciences Education Engineering
Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan is a peer review international journal, this journal is publishing high-quality articles in aquatic sciences and fisheries in general. The aim of the journal is to publish and disseminate the current or new findings of the research, and give a significant contribution to the development of fisheries and aquatic sciences in several topics, but not limited to: Fisheries (Aquaculture, Capture Fisheries, Fish Processing) Aquatic Ecology (Freshwater, Marine, and Brackishwater) Aquatic Biology (Fish, Mollusk, Crustacean, Plankton, Coral reefs) Oceanography.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Ilmu Bumi dan Planet (Lain-Lain)
Articles 563 Documents
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A review on optimizing fish growth using fermented animal by-products for sustainable aquaculture Hasna Nabila Shobihah; Yuli Andriani; Muhamad Fatah Wiyatna; Iskandar Iskandar; Irfan Zidni; Mia Miranti Rustama
Depik Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.2.43418

Abstract

Feed availability is a crucial factor in aquaculture, accounting for approximately 6070% of total production costs. High-quality feed is often expensive due to reliance on imported ingredients. To address this issue, animal-based organic waste presents a promising alternative, given its abundance, underutilization, and high nutritional value when properly processed. This review was conducted from November 2024 to January 2025 using a narrative literature review approach, synthesizing previous publications to identify research gaps and development opportunities. Literature was sourced from national and international scientific databases, including Scopus, ScienceDirect, SpringerLink, and ResearchGate. The study aimed to explore the production of fermented animal by-product meal and its application in aquafeed to enhance fish growth performance. Findings indicate that fermentation significantly improves the nutritional quality of animal waste. Several reviewed studies reported that incorporating fermented by-products such as fish offal, poultry feathers, and blood at inclusion levels of 2025% can improve the growth and survival rates of juvenile fish. Therefore, the optimal use of such ingredients is recommended to reduce feed costs and support the sustainability of aquaculture systems.Keywords:Alternative ingredientsFish wasteChicken Feather WasteBlood WasteFermentationFish feed
Investigation of environmental factors impact on fish catch in East Java Waters Suliskania Nurfitri; Ajeng Tiara Putri; Mutiara Rachmat Putri
Depik Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

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Abstract

This study explores the relationship between environmental parameters and fish catch rates for scad, skipjack, and yellowfin tuna in East Java waters from 2019 to 2022. The environmental factors considered include sea surface temperature (SST), chlorophyll-a concentration, and Ekman pumping velocity (EPV) as indicators of upwelling. SST and chlorophyll-a data were obtained from Aqua MODIS satellite observations, while wind and seawater density data for EPV calculations were sourced from ERA5 and SMOS-OI, respectively. Fish catch data were provided by the Department of Marine and Fisheries of East Java. Cross-correlation analysis revealed a negative correlation between SST and fish catch, with time lags of 2, 4, and 5 months for scad, skipjack, and yellowfin tuna, respectively. Chlorophyll-a concentration showed a positive correlation with fish catch, particularly for scad (0.6 with a one-month lag) and for skipjack and yellowfin tuna (0.62 with a four-month lag). Additionally, EPV exhibited a positive correlation (0.3 to 0.6) with fish catch. These findings emphasize the significance of SST and chlorophyll-a as indicators of fish population dynamics and offer valuable insights for fisheries management.Keywords:East Java WatersSea surface temperatureChlorophyll-aFishcatchUpwelling
Diversity of macroalgae in the intertidal zone of Iboih Beach, Sabang, Indonesia Suwarniati Suwarniati; Maria Ulfa; Meutia Zahara; Nurul Fajriana; Muslim Amiren; Qurratu Aini
Depik Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.2.45719

Abstract

The intertidal zone of Iboih Beach in Sukakarya District, Sabang, has significant macroalgae diversity with different substrate variations. This study examined the diversity, distribution, and ecological significance of macroalgae using the quadrat method with purposive sampling technique on three plots measuring 2 2 m (coral, sand, and rock substrates), each replicated three times. Measurements of environmental parameters including temperature (using a thermometer), salinity (refractometer), and depth (Secchi disk) were carried out prior to sampling to ensure that environmental conditions were recorded. The results showed Galaxaura rugosa as the dominant species (INP 63.22), followed by Halimeda opuntia (38.42) and Chaetomorpha crassa (35.27), which showed a preference for hard substrates rich in nutrients. In contrast, Caulerpa sp. had the lowest INP (9.33), indicating specific habitat adaptation. The Shannon-Wiener diversity index (H=1.57) was in the moderate category, with an average INP of 28.575 reflecting a diverse community occupying different ecological niches. The coral substrate supported the highest abundance due to its stability and nutrient availability. This finding confirms the crucial role of substrate characteristics in the structure of intertidal macroalgal communities.Keywords:DiversityMacroalgaeIntertidal zoneSubstrateIboih Beach
Fish Biodiversity and Substrate Composition on Coral Reef Ecosystem at Penimbangan, Buleleng Regency, Bali Sapto Andriyono; Diah Ayu Safitri; Akhmad Taufiq Mukti; Mike van Keulen
Depik Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

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Abstract

The Penimbangan is one of the potential locations for underwater tourism in the Regency Buleleng, by unique dive spot. Planning and sustainable coastal development are essential for the continuity ecosystem, sea, and economy. Fish and coral studies in Penimbangan, District Buleleng, occurred from December 2022 to February 2023. Location observation shared four sites of data retrieval. The determination sites study uses purposive sampling based on the spread of coral naturally. Data was collected by Underwater Photo Transect (UPT) for coral and Underwater Visual Census (UVC) for fish. Transect area coral 50m long with quadratic transect (58cmx44cm), and classified categories using CPCe software. Transect area fish of 350 m2 (length 70 m, limit right and left 2.5 m), identified fish to level species. The most studied habitat associations in coral reefs are coral (HC) and fish in coral assemblages. Percentage composition substrate basis in Penimbangan, namely dead coral with algae (106.74), coral (90.27), and sand (70). Lifeform coral is found in as many as ten types; the most are CM (39.00), CE (23.20), and ACS (10.07). A total of 17 families with 70 reef fish species were recorded in this study. The family with the most species is Pomacentridae (25), followed by Chaetodontidae (9) and Labridae (8). The composition of fish will vary according to the type of habitat. Different coral habitats covered by benthic influence the abundance of certain trophic levels of reef fish in an area of water.
Assessment of shark catches landed at PPI Ujung Serangga, Southwest Aceh Nur Zulurrahmi; Ilham Fajri; Ratna Mutia Aprilla; Herman Herman; Rada Febriyanti; Riska Diajeng Putri
Depik Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.2.46214

Abstract

This study aimed to assess shark catches at PPI Ujung Serangga, Southwest Aceh, focusing on species composition, size and conservation status. Data were collected through field surveys and direct measurements of sharks landed by fishers. Results showed that bottom longlines were the most widely used fishing gear and produced the highest shark catches. A total of 643 individual sharks from 16 species were identified, with the family Carcharhinidae dominating the catch. Most of the sharks caught were below gonad length (Lm), indicating the potential for juvenile shark fishing. The conservation status of sharks evaluated based on IUCN showed that most species were categorized as Near Threatened (NT) and Vulnerable (VU), with some species categorized as Critically Endangered (CR) and Endangered (EN). Almost all identified shark species are listed in CITES Appendix II. This research highlights the importance of sustainable shark fisheries management to maintain populations and biodiversity in the Southwest Aceh region.Keywords:SharkConservation StatusCITESSouthwest Aceh
Influence of the environmental challenges on the resilience of purse seine fisherman in Kutaraja oceanic fishing port, Banda Aceh Jasnur Syahputra; Sugeng Hari Wisudo; Eko Sri Wiyono; Mustaruddin Mustaruddin
Depik Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.2.46231

Abstract

Purse seine fishermen in Kutaraja Oceanic Fishing Port, Banda Aceh, face various socio-economic and environmental challenges that affect the sustainability of their fishing activities. This study aims to identify and analyze the factors influencing the resilience of these fishermen in facing such challenges. A quantitative approach was employed through a survey method, and data were collected from 100 purse seine fishermen using structured questionnaires. The data were analyzed using descriptive and inferential statistics with multiple linear regression models. The findings show that income and social support significantly affect fishermens resilience, with p-values of 0.002 and 0.015 (p 0.05), respectively. Meanwhile, education and environmental conditions have less influence, indicated by p-values of 0.089 and 0.122 (p 0.05). The coefficient of determination (R) is 0.68, suggesting that 68% of the variance in fishermens resilience can be explained by these four variables. The practical implications of this research highlight the importance of empowering fishermen through enhanced access to education, skills training, and social infrastructure development to strengthen their resilience in dealing with environmental and economic changes in the fisheries sector. The study concludes that economic and social support systems are key drivers in improving fishermens adaptive capacity.Keywords:ResiliencePurse seineFishermenEnvironmentalBanda Aceh
Composition and distribution of Lutjanus johnii and other species using wire traps in the waters of Rigaih, Aceh Jaya Regency Nasruddin Nasruddin; Mulyono S Baskoro; Roza Yusviandayani; Vita Rumanti Kurniawati; Dahri Iskandar
Depik Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.2.46225

Abstract

The catch results show that wire traps are an effective and selective fishing gear for Lutjanus johnii, with a total catch of 244.1 kg. The bycatch, consisting of 10 species, amounted to 208.1 kg, also caught using wire traps in the waters of Rigaih. This study aimed to identify the composition of the bycatch, the ratio between the target catches and the bycatch, and the size range of the dominant bycatch species caught during L. johnii fishing operations in Rigaih waters. The research was conducted in the waters of Rigaih during NovemberDecember 2024 using wire traps (dimensions: length x width x height = 120 x 100 x 75 cm). The results showed that the primary catch using wire traps was dominated by L. johnii, with a total of 135 individuals (48.7%) weighing 244.1 kg. The bycatch amounted to 208.1 kg (46.1%). The bycatch species included Caranx sexfasciatus with 42 individuals (15.2%) weighing 18.4 kg (4.1%), Lutjanus gibbus with 24 individuals (8.7%) weighing 31.9 kg (8.7%), and Epinephelus malabaricus with 24 individuals (8.7%) weighing 114.5 kg (25.3%). The dominant bycatch size classes caught in the wire traps included L. campechanus with a total length range of 1820 cm, L. campechanus with a total length range of 3045 cm, and Epinephelus malabaricus with a total length range of 4075 cm. The proportion of the target catch to bycatch by weight was 53.9% to 46.1%. This means that for every 1 kg of L. johnii caught, approximately 0.85 kg of bycatch was also captured.KeywordsLutjanus johniiwire trapAceh Jayasex ratiofish composition
Sustaining grouper populations: eafm-based evaluation in the marine ecosystem of Sabang, Aceh Edy Miswar; Alvi Rahmah; Ratna Mutia Aprilla; Imelda Agustina; Salmarika Salmarika; Khairani Khairani
Depik Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.2.46135

Abstract

Sabang as the westernmost region of Indonesia and bordering the Indian Ocean and the Malacca Strait has fishery potential that must be maintained so that it is sustainable. Good management of grouper fish (Epinephelus sp.) resources is a solution so that fishery potential remains sustainable, one of which is the ecosystem approach. So far, many studies related to grouper management based on an ecosystem approach have been carried out in several regions in Indonesia, but none have focused on fisheries in Sabang. Therefore, this study aims to assess the status of grouper resource management, provide management recommendations and disseminate the results of the assessment of grouper resource management status in Sabang. This research was conducted from July to August 2022, located in Sabang, Aceh. Observation and direct interviews were conducted to collect the data and then analyzed by a multi-criteria analysis with composite index development. Based on the value of these indicators, it shows that the domain of grouper fish resources in Sabang caught using the hand line is good category with a green flag model and a composite value of 82. This means that the management of grouper fish resources in Sabang has not been running optimally. So, it is necessary to improve fisheries management in several aspects to support sustainable fisheries management.Keywords:GrouperEAFMSabangFisheriesSustainability
Morphometric variation of five dominant parrotfish (Scaridae) harvested from the Northern Waters of Aceh Nanda Ulfa Khaira; ZA Muchlisin; Nur Fadli
Depik Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.2.41572

Abstract

The waters of Aceh are surrounded by three major water bodies: the Andaman Sea, the Indian Ocean, and the Malacca Strait. Differences in current patterns extend the distribution range and contribute to the species diversity. Fish from the Scaridae family are among the species that thrive in these environments. The family Scaridae (Rafinesque 1810), commonly known as parrotfish, inhabits tropical seas, including the Pacific, Indian, and Atlantic Oceans, and is often found in coral reef areas. Parrotfish play a crucial role in maintaining coral reef health as one of the herbivorous fish species. This study aims to analyze the morphometric variation of five parrotfish species harvested from the Northern waters of Aceh. Traditional morphometrics using 12 measurement characters were applied to 60 fish samples from five species of the Scaridae family (Chlorurus capistratoides, Chlorurus sordidus, Scarus ghobban, Scarus niger, and Scarus rubroviolaceus). The results showed that Scarus rubroviolaceus shares four similar characters with Scarus ghobban: ED, HL, CPL, and PFL; it also shares four characters with Scarus niger: ED, HL, CPL, and SNL. Chlorurus capistratoides shares three similar characteristics with Scarus niger: CPL, ED, and PFL. In addition, the results of the DFA analysis revealed that Scarus ghobban and Scarus niger exhibit the highest degree of similarity in morphometric traits, particularly in HL, SNL, DFBL, ED, and PFL. Furthermore, Scarus rubroviolaceus demonstrates a slight overlap with Chlorurus capistratoides, while Scarus niger shows a minor overlap with Scarus rubroviolaceus. This study provides morphological diversity of parrotfish species in the northern Aceh waters.Keywords:Aceh watersmorphometricsParrotfishMeasurement charactersDFA
Characteristics of the edible film made from Kappaphycus alvarezii of Sumenep seawaters, Madura Hafiludin Hafiludin; Desti Yulia Radika Prameswari; Mojiono Mojiono
Depik Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

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Abstract

Edible film is a primary packaging in the form of a thin layer that covers food products, and it is usually made from hydrocolloids, lipids, and mixtures of both. Edible film from seaweed carrageenan (Kappaphycus alvarezii) extracts may serve as an alternative to plastic packaging, which is environmentally friendly and safe for consumption. This research aims to analyze the proximate composition ofKappaphycus alvareziisamples (lab-scale drying and conventional drying) and investigate its effects on physical characteristics (thickness values, solubility in water, water vapor transmission rate, elongation,and tensile strength) of the edible film. The research was carried out in several stages: sampling, sample preparation, carrageenan extraction, and edible filmmaking. The research was carried out using a completely randomized design with five treatments, namely the addition of 1%, 2%, 3%, 4%, and 5% (w/v) carrageenan extract. The research results showed significant differences in proximate values(water, ash, fat, fiber, and carbohydrates) between seaweed dried by farmers and seaweed dried in the laboratory. The addition of carrageenan extract significantly affected the edible film's thickness, water solubility, and tensile strength. The best characteristics were obtained at a concentration of 2% carrageenan extract, resulting in a thickness of 0.12 mm, solubility in water of 60.43%, water vapor transmission rate of 5.77 g/cm2/hour, elongation of 251.33%, and tensile strength of2.42 Mpa.The results of this research are essential for the development of packaging technology in the future.

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