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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) - Oseanografi
Articles 944 Documents
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Optimizing restricted feeding strategies to improve tilapia (Oreochromis niloticus) growth and feed utilization Aries, Gusti; Khairat, Miftahul; Rahardjo, Sinung; Sari, Yesi Dewita
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 4 (2025): December 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.4.48557

Abstract

Excessive feeding not only increases production costs, but also it can pollute the environment due to unconsumed feed residue. One of the strategies that can be used to increase aquaculture efficiency is by implementing restricted feeding techniques. This study aimed to evaluate the impact of different restricted feeding intervals on tilapia growth performance, feed conversion ratio (FCR), survival rate (SR), and feed cost efficiency. This study used a Completely Randomized Design (CRD). The study consisted of three treatments and four replications using one container separated using net partition in a pond with a rearing period of 50 days. Periodic restricted feeding affected the growth of tilapia length and weight, but did not affect Survival Rate (SR) and Feed Conversion Ratio (FCR). The highest rate of growth was shown by P2 (restricted feeding period of 1 day) with a length of 8.79 3.18 cm and a weight of 9.46 3.18 g, and the lowest rate of growth was in treatment P3 (restricted fasting period of 2 days) with a length of 8.2 1.82 cm and a weight of 7.47 2.45 g. Although FCR and SR did not differ significantly across treatments, P2 had the lowest FCR (0.76) and highest SR (83%), with a 23% reduction in feed cost compared to P1. In conclusion, restricted feeding with one fasting day per week improved tilapia growth and feed utilization efficiency, offering a cost-effective and sustainable feeding strategy for aquaculture.Keywords:TilapiaGrowthFeed conversion ratioSurvival rateCompletely randomized design
Use of mimosa (Mimosa pudica) leaf extract as an antibacterial for koi fish frys infected with Aeromonas hydrophila Ismarica, Ismarica; Ningsih, Vella Gustia; Dewiyanti, Irma; Arisa, Iko Imelda; Nuzlia, Cut; Dewi, Cut Dara; Humeira, Humeira
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 4 (2025): December 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.4.46241

Abstract

This study evaluates the antibacterial potential of Mimosa pudica leaf extract for koi fry (Cyprinus carpio) infected with Aeromonas hydrophila. Specifically, it investigates the effects of immersion treatments at different concentrations, determines the optimal dose, and analyzes hematological responses. The research was conducted from December 2023 to January 2024 at the Fish Hatchery and Breeding Laboratory, Faculty of Marine and Fisheries, Syiah Kuala University. A Completely Randomized Design (CRD) was applied with six treatments A (negative control), B (positive control), C (Mimosa leaf extract 6%), D (Mimosa leaf extract 7%), E (Mimosa leaf extract 8%), and F (Mimosa leaf extract 9%) each with three replications. The results showed notable improvements in clinical symptoms of koi fry, including active swimming behavior, better feeding response, fading of red spots, reduced mucus production, normalized scales, absence of abdominal swelling, and restoration of normal eye color. ANOVA analysis of survival rate revealed a significant effect (P 0.05), with the highest survival observed in treatment F (86%) compared to treatment B (46%). In conclusion, Mimosa pudica leaf extract at a concentration of 9% (treatment F) provided the best results and can be recommended as a potential natural antibacterial for koi fry.Keywords:MimosaAeromonas hydrophilaKoi fishclinical symptoms
Productivity of trap catches in different fishing ground at Lhok Kuala Daya, Aceh Jaya Rizal, Muhammad; Hafinuddin, Hafinuddin; Fuadi, Afdhal; Khairi, Ikhsanul; Rahayu, Rosi; Al-misbah, Iyan
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 4 (2025): December 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.4.50266

Abstract

Trap fishing gear offers several advantages, including high selectivity, the ability to keep fish alive, and support for sustainable fisheries. The productivity of catches around coral reefs and fish aggregating devices (FADs) is important to study in order to evaluate fish diversity in deeper waters across biological, genetic, species, and ecological levels. Such assessments are crucial for environmental conservation and for management based on diversity and dominance indices. This study aimed to determine the productivity, diversity, and dominant species composition of trap catches in two fishing grounds (FGs): coral reef areas and FAD zones at Lhok Kuala Daya, Aceh Jaya. The research employed an experimental fishing method, conducting five fishing operations in each zone. The overall diversity index of trap catches in Lhok Kuala Daya was 1.26, indicating a moderate level of diversity. The diversity index for catches around coral reefs was 1.15, while around FADs it was 1.58. The overall dominance index value of trap catches was 2.74, with dominance values of 0.74 in coral reef areas and 2.00 in FAD zones. These results indicate a low level of species dominance and a moderately diverse fish community in both fishing zones.Keywords:ProductivityTrapcatchFishing groundKuala daya
Estimation of mangrove sedimentary carbon stock in Deah Raya, Banda Aceh Khairunnisa, Khairunnisa; Rahayu, Adisty; Haridhi, Haekal Azief; Farahisah, Harum; Ulfah, Maria
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 4 (2025): December 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.4.50210

Abstract

Mangrove ecosystems are important blue carbon sinks, particularly through long-term carbon storage in their sediments. This study examined sediment bulk density, organic carbon content, and sediment carbon stock in the mangrove ecosystem of Deah Raya Village, Banda Aceh, Indonesia, which has regenerated following the 2004 Indian Ocean tsunami. Sediment samples were collected at three depth intervals (030 cm, 3060 cm, and 60100 cm) across three stations. Organic carbon content was determined using the Loss on Ignition (LOI) method, and carbon stock was estimated based on bulk density and carbon concentration.Bulk density ranged from 0.52 to 0.93 g cm and increased with depth, reflecting greater sediment compaction and lower organic matter accumulation. Organic carbon content varied across depths and stations, with the highest value (4.77%) recorded at Station 3 at 3060 cm, likely due to fine root biomass and reduced decomposition in anoxic layers. Sediment carbon stock ranged from 14.81 to 29.20 Mg C/ha, which is lower than national and global averages for mature mangrove systems, indicating limited carbon accumulation in this recovering ecosystem. These findings highlight the influence of vegetation structure and sediment characteristics on blue carbon storage and underscore the need for continued protection to enhance future carbon sequestration capacity.Keywords:MangroveSedimentCarbonBanda Aceh

Page 95 of 95 | Total Record : 944

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