DEPIK Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan
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Dietary inclusion of green tea (Camellia sinensis) leaf flour enhances growth and affects hematological parameters in Nile Tilapia (Oreochromis niloticus)
Full text linkNile tilapia (Oreochromis niloticus) is an important aquaculture species due to its fast growth and high economic value, with feed quality being a key factor in production efficiency. This study evaluated the effects of dietary green tea (Camellia sinensis) leaf flour on growth performance, hematological parameters, and intestinal histology of Nile tilapia. A completely randomized design was applied with six dietary treatments (02.5 g/kg feed) and three replicates each. Supplementation at 1.5 g/kg produced the best growth response, with significant improvements (P 0.05) in weight gain (7.24 0.91 g), length gain (3.61 0.21 cm), and specific growth rate (2.67 0.20%/day), while feed conversion ratio, feed efficiency, and survival did not differ among treatments. Hematological values varied but remained within normal physiological ranges. Histological analysis indicated enhanced villi morphology, suggesting improved nutrient absorption. The bioactive properties of C. sinensis highlight its potential as a functional feed additive to improve tilapia growth and health, offering practical applications for sustainable aquaculture.Keywords:TilapiaGreen tea leaf flourFish growth performanceHematological parametersFeed additiveRasakan sensasi serunya bermain tanpa hambatan di situs link gacorqq, kesempatan mendapatkan jackpotnya cukup mudah dan sangat cepat
Influence of the environmental challenges on the resilience of purse seine fisherman in Kutaraja oceanic fishing port, Banda Aceh
Full text linkPurse 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 Ace
Rose anthocyanin microencapsulation for improving the color of two strains of koi
Full text linkKoi fish coloration is genetically significant, but environmental factors and color quality can lead to degradation. Some individuals use synthetic dyes to enhance their appearance, which harms the environment. This study explored the effects of microencapsulated Rose sp. flower anthocyanin (MRFA) as a natural alternative dye to enhance the color of Sanke and Kohaku koi fish. Sanke exhibits orange-black hues, while Kohaku shows orange-white hues, allowing for comparative analysis. Before the experiment, MRFA was analyzed using FESEM and XRD to assess the particle size distribution and shape of the anthocyanin microcapsules. A Randomized Complete Design (CRD) with four treatments (T0, 150 mg (T1), 300 mg (T2), and 450 mg (T3)) and five replications were used. Data was analyzed with SPSS. Results showed that MRFA particles were distributed, though not entirely homogeneous (14 m to 170 m), with XRD spectra indicating interactions between maltodextrin and Rose sp. anthocyanin. Results showed that MRFA significantly improved certain color parameters in Sanke, particularly at moderate doses (T1 and T2), but the control group (T0) outperformed MRFA in some cases. In Kohaku, no significant improvement was observed compared to the control, suggesting that MRFA was less effective in enhancing whiteorange pigmentation. Overall, our findings indicate that MRFA supported koi growth but showed limited, strain-specific effects on coloration. Further studies with longer trials and larger populations are needed to confirm its potential as a natural feed additive.Keywords:Herbal extractCyprinus carpioKohakuPigmentSank
Analysis of heavy metals contamination in chue snails (Faunus ater) from estuary of the southwestern coast of Aceh Province, Indonesia
Full text linkThe southwestern coast of Aceh Province is among the areas vulnerable to heavy metal pollution originating from human activities, including mining, agriculture, and household waste. Chue snails (Faunus ater) are among the aquatic organisms that can be used as a bioindicator of water pollution. Therefore, this study aimed to evaluate the content of Lead (Pb), Cadmium (Cd) and Mercury (Hg) in F. ater snails originating from seven estuary areas in the southwestern coast area of Aceh Province. Analysis was also carried out to determine the environmental factors affecting metal accumulation and potential risks to public health. Sampling was performed in various areas, including the Jembatan Kembar River (Aceh Singkil), Trumon River (South Aceh), Kuala Lama Tuha (Southwest Aceh), Peunaga Cut Ujong River (Nagan Raya), Suak Ribe Puteh (West Aceh), Teunom River (Aceh Jaya), and Leupung River (Aceh Besar). This study used a laboratory analysis method with Atomic Absorption Spectrophotometry (AAS) instruments to measure metal concentrations in F. ater tissue. The results showed that all samples from seven areas were contaminated with Pb, Cd, and Hg at levels ranging from 0.691 - 1.575 mg/kg, 0.285 - 0.311 mg/kg, and 0.001 0.030 mg/kg, respectively. Pb and Cd content showed high heavy metal content, which exceeded the safe threshold according to the Food and Drug Administration (BPOM), Republic of Indonesia, with the greatest concentration found in the Southwest Aceh Regency. These results showed that the consumption of F. ater had the potential to endanger public health. Therefore, it is necessary to conduct outreach to the community to increase environmental awareness and food safety.Keywords:Heavy MetalBioaccumulationEstuaryBioindicatorsFaunus aterSDGs 13SDGs 1
Types of fish caught with beach seine gear in Gampong Pulot, Leupung District, Aceh Besar
No full textCoastal fisheries play a vital role in supporting food security and livelihoods in Aceh, Indonesia. Among the various fishing methods used by artisanal fishers, the beach seine remains one of the most traditional and culturally significant gears, passed down through generations and still widely practiced in Gampong Pulot, Leupung District, Aceh Besar. Despite its importance, studies on the species composition and ecological implications of beach seine operations in this area remain limited. This study aimed to identify the types of fish caught using beach seine gear and analyze their composition to better understand the ecological characteristics of the catch. The research was conducted from January to March 2025 using a survey method, collecting both primary and secondary data through field observations and literature review. Results showed a total catch of 2,926.5 kg, comprising 16 fish species. The dominant species were bluefin trevally (Caranx melampygus, 28.43%), anchovy (Stolephorus indicus, 22.66%), and yellowtail scad (Carangoides ciliaris, 19.55%). The findings indicate that the beach seine fishery in Gampong Pulot mainly targets schooling pelagic species, which are ecologically important and economically valuable. These results highlight the need for sustainable management strategies to ensure the long-term viability of traditional fisheries and the protection of coastal ecosystems.Keywords:Aceh coastal communitiesArtisanal fisheriesBeach seine fisheryCatch compositionTraditional fishing gea
Banda Aceh mangrove vegetation structure in 2023 based on NDVI (Normalized Difference Vegetation Index) analysis
Full text linkMangroves are coastal forest ecosystems found in tropical and subtropical regions. such as the city of Banda Aceh. Based on their habitat, mangroves are a type of wetland forest that can store large amounts of carbon. The purpose of this study is to determine the structure of mangrove vegetation in the city of Banda Aceh through NDVI analysis. The analysis method used was NDVI and sample observation using plots. The results of the analysis show that the vegetation structure is directly proportional to the NDVI value. Areas with high NDVI values are dominated by tree, while areas with low NDVI values are dominated by seedling.Keywords:MangroveVegetationNDV
A review on optimizing fish growth using fermented animal by-products for sustainable aquaculture
Full text linkFeed 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 fee
Growth pattern and otolith size of Tor spp. (Cyprinidae)
Full text linkThe threat of decreasing populations of Tor species continues to increase due to intensive fishing, habitat destruction and infrequent cultivation efforts. Monitoring of this group of fish must be carried out routinely to reveal the population conditions of fish. This research aims to reveal the population conditions of fish through an analytical approach to the length-weight relationship and fish otolith size. All fish samples were then taken for otoliths to measure their size and analyzed further using a scanning electron microscope (SEM). The research was conducted in the Tangkahan River, North Sumatra, Indonesia from January-March, 2023. The results showed that 43 samples of T. douronensis, 34 samples of T. tambra, and 24 samples of T. tambroides had b values of 2.853, 2.757, and 2.353, respectively. The b value in this study indicated that the fish had a negative allometric growth pattern. The size of the otoliths of the three Tor species shows that T. tambra has the highest length (the distance measured from the anterior to the posterior of the of sagitta otolith) on average reaching 9.31 mm, while T. tambroides and T. douronensis only reach 1.53 mm and 1.83 mm. The results were confirmed by ANOVA showing significant differences (P 0.05) in the mean value of otolith size based on Tor species, where the otolith size of T. tambra was significantly different compared to the other two species. The condition of Tor species in the Tangkahan River has experienced ecological pressure. This indication was concluded from the results of the analysis of the length-weight relationship of fish which showed b value 3 (negative allometric). The results show that the characteristics and size of the otoliths can differentiate Tor species and facilitate identification efforts related to management and conservation.Keywords:Habitat DestructionNegative AllometricAnterior of Sagitta OtolithPosterior of Sagitta Otolit
Molecular insights into the biodiversity of freshwater red macroalgae in Indonesia
Full text linkMany Asian countries, including Indonesia, have experienced negative effects from pollution brought on by industrialization and modernization, which have harmed freshwater ecosystems as well as natural habitats. Red macroalgaeand other creatures that depend on these ecosystems for their survival may suffer as a result, which could increase the strain on freshwater ecosystems and resources. Due to freshwater red macroalgaeare primary producers in their own ecosystems, they are essential to the cycling of nutrients and the preservation of water quality. The objective of this study is to evaluate freshwater red macroalgae in Indonesia utilizing various approaches particularly emphasis on DNA barcoding. As a result, molecular methods like DNA barcoding are employed to uncover hidden species and elucidate the evolutionary connections between different taxa, thereby exposing the diversity of red macroalgae. It is anticipated that the outcomes will yield data for further research.Keywords:DNA barcodeFreshwaterHidden speciesMolecularRed macroalga
Fish Biodiversity and Substrate Composition on Coral Reef Ecosystem at Penimbangan, Buleleng Regency, Bali
Full text linkThe 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