Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan
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
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<![CDATA[The application of integrated multi-trophic aquaculture (IMTA) using floating net cages on Tilapia fish with native fish (Peres, Lemeduk, and Depik) ]]>
<![CDATA[Nurfadillah Nurfadillah]]>;
<![CDATA[Iwan Hasri]]>;
<![CDATA[Muhammad Reza Purnama]]>;
<![CDATA[Adrian Damora]]>;
<![CDATA[Siska Mellisa]]>
<![CDATA[ Depik Vol 10, No 3 (2021): December 2021 ]]>
Publisher : <![CDATA[Faculty of Marine and Fisheries, Universitas Syiah Kuala ]]>
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DOI: 10.13170/depik.10.3.22465
<![CDATA[Environmental problems due to aquaculture occur along with the increase in aquaculture production. IMTA is one system used as a solution in dealing with environmental problems. The objective of this study was to analyze the growth performance, survival rate, and production of the main commodity (tilapia) and the supporting commodities (Peres, Lemeduk, and Depik) which are applied through the application of integrated multi-trophic aquaculture (IMTA) using floating net cages. This research was conducted at the Lukup Badak Fish Seed Center, Central Aceh from July to August 2020. The experimental design used was a completely randomized design (CRD) with 4 treatments and 3 replications, namely: A (tilapia), B (tilapia and peres), C (tilapia and lemeduk), and D (tilapia and depik). ANOVA test results showed that the IMTA system had a significant effect on absolute length growth, absolute weight growth, specific growth rate (SGR), survival rate, and biomass production of tilapia (P0.05). The results showed that maintenance for 42 days produced the highest value in treatment B with the increase in absolute length growth (4.26cm±0.24); absolute weight growth (5.47g±0.45), specific daily growth rate (2.28%/day±0.13) and the highest tilapia biomass production (480g/0.5m2±19.25). The highest survival rate was found in treatment C (82.42%±2.28). It was concluded that the treatment using the IMTA system was better than without the IMTA system.Keywords:IMTAWater qualityGrowth performanceTrophic interactionBiomass production]]>
<![CDATA[Cellulase activity of bacteria isolated from water of mangrove ecosystem in Aceh Province ]]>
<![CDATA[Irma Dewiyanti]]>;
<![CDATA[Darmawi Darmawi]]>;
<![CDATA[Zainal Abidin Muchlisin]]>;
<![CDATA[Teuku Zahrial Helmi]]>;
<![CDATA[Iko Imelda Arisa]]>;
<![CDATA[Cut Nanda Defira]]>;
<![CDATA[Fitriyani Fitriyani]]>;
<![CDATA[Sawva Yura]]>
<![CDATA[ Depik Vol 10, No 3 (2021): December 2021 ]]>
Publisher : <![CDATA[Faculty of Marine and Fisheries, Universitas Syiah Kuala ]]>
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DOI: 10.13170/depik.10.3.22964
<![CDATA[Cellulolytic bacteria that produce cellulase enzymes play an essential role in degrading cellulose in their habitat. The presence of cellulolytic bacteria strongly supports the fertility and productivity in mangrove waters. The objectives of the study are to analyze the activity of cellulase enzyme qualitatively through the cellulolytic index and quantitatively through the activity and specific activity of the cellulase enzyme from bacteria isolated from the water of mangrove ecosystems in Aceh Province. The qualitative experiment of enzyme activity was carried out at the Microbiology laboratory SKIPM Aceh, and a quantitative experiment of enzyme activity was conducted at the Microbiology Laboratory, Biology Department, IPB. Isolation of cellulolytic bacteria isolated from mangrove water used Carboxy Methyl Cellulose (1% CMC) selective media and carried out by spread plate method. The ability of bacteria to produce cellulase was tested qualitatively using the spot technique, this test was carried out using 1% Congo Red. Furthermore, the quantitative testing of cellulase enzymes activity adopted the DNS spectrophotometric method. The specific activity of the cellulase enzyme can be determined by using the Lowry method. There were 21 isolates that had a clear zone and had the ability to produce cellulase enzymes from 49 isolates that were successfully purified. The highest cellulolytic index (CI) produced using BAM421 isolate with the value of 5.50 was included in the high category, followed by BAM326 and BAM132 isolates, with values of 1.55 and 1.05 were categorized into the medium category. The other isolates were in the low cellulolytic index category. The isolate with the highest CI value was further tested using the quantitative enzyme activity test. The highest cellulase enzyme activity of BAM421 occurred at 24hr (0.0029 U/ml). The highest specific cellulase activity of BAM421 was at 24hr with the value of 0.210 U/mg. The result concluded that the qualitative test showed CI values can be categorized into low, medium, and high. Moreover, the value of the quantitative assay described that the cellulase enzyme and the specific enzyme activities of the bacteria were low in the study area.Keywords:Cellulolytic indexQuantitative testMangrove watersCellulase enzymeMicroorganismTRANSLATE with x EnglishArabicHebrewPolishBulgarianHindiPortugueseCatalanHmong DawRomanianChinese SimplifiedHungarianRussianChinese TraditionalIndonesianSlovakCzechItalianSlovenianDanishJapaneseSpanishDutchKlingonSwedishEnglishKoreanThaiEstonianLatvianTurkishFinnishLithuanianUkrainianFrenchMalayUrduGermanMalteseVietnameseGreekNorwegianWelshHaitian CreolePersian // TRANSLATE with COPY THE URL BELOW Back EMBED THE SNIPPET BELOW IN YOUR SITE Enable collaborative features and customize widget: Bing Webmaster PortalBack//]]>
<![CDATA[Population structure of Lingula (Bruguière, 1791) in Alue Naga waters, Banda Aceh City, Indonesia ]]>
<![CDATA[Chitra Octavina]]>;
<![CDATA[Maria Ulfah]]>;
<![CDATA[Sri Agustina]]>;
<![CDATA[Haekal Azief Haridhi]]>;
<![CDATA[Ade Yudistira]]>
<![CDATA[ Depik Vol 10, No 3 (2021): December 2021 ]]>
Publisher : <![CDATA[Faculty of Marine and Fisheries, Universitas Syiah Kuala ]]>
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DOI: 10.13170/depik.10.3.20348
<![CDATA[Lingula sp. is one of the genera of the Brachiopoda phylum that lives in the intertidal zone or areas that are affected by tides. The purpose of this study was to determine the population structure of Lingula sp. through the approach of population structure, density, distribution patterns, length and weight relationship and with physical and chemical parameters in the waters of Alue Naga, Syiah Kuala District, Banda Aceh City. The method used in this research is a purposive random sampling method. The results show that the growth pattern of Lingula sp. is classified as negative allometric at three research sites in Alue Naga waters, based on the value of b 3. The density of Lingula sp. was the highest at site 1 with a total of 17.7 ind/m2. While the density of Lingula sp. was the lowest at site 3 with a total of 9.7 ind/m2. The distribution of Lingula sp. at the three sites were uniform, with morisita index (Id) values of 0.352, 0.257, and 0.208 for sites 1, 2, and 3 respectively. In addition, the environmental factors of the three research sites in Alue Naga waters are within the normal limits of life for Lingula sp.Keywords: Alue NagaLingula sp. Population structure]]>
<![CDATA[The use of fish silage to increase feed efficiency and growth of grouper (Epinephelus coioides) in floating net cages ]]>
<![CDATA[Agus Putra AS]]>;
<![CDATA[Muhammad Amin]]>;
<![CDATA[Baihaqi Baihaqi]]>;
<![CDATA[Muhammad Hatta]]>;
<![CDATA[Eva Ayuzar]]>
<![CDATA[ Depik Vol 10, No 3 (2021): December 2021 ]]>
Publisher : <![CDATA[Faculty of Marine and Fisheries, Universitas Syiah Kuala ]]>
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DOI: 10.13170/depik.10.3.23105
<![CDATA[This study aimed to investigate the efficiency of fish silage mixed in compounded diets on growth and survival rate of grouper (Epinephelus coioides). Grouper (2,34±0,24 cm, and 4,17±1,82 g) were divided into four groups and cultivated in 1x1x1,5 m floating net cages. Each group fed with compounded diets containing 0, 1, 3 and 5 g/kg fish silage diet twice daily. Fish were sampled for growth performances and feed efficiency at 14 days interval for 10 weeks. Results indicated that compounded diets at 1 and 3 g/kg silage affected the growth rate. Total length, specific growth rate and weight gain significantly increased in fish received 1 and 3 g/kg silage diets. The feed intake seen to be highest in groups administered 3 g/kg silage, whereas the best feed conversion ratio was found in fish fed 1 g/kg silage. Thus, this study indicated that using fish silage in compounded diets may affect feed efficiency and growth performances of grouper juveniles.Keywords:Artificial dietFeedingFish silageGrouperNet cages]]>
<![CDATA[Assessment of water quality based on biological indices of macrobenthos: a river under pressure from tourism activities ]]>
<![CDATA[Asep Sahidin]]>;
<![CDATA[Zahidah Zahidah]]>;
<![CDATA[Herman Hamdani]]>;
<![CDATA[Heti Herawati]]>;
<![CDATA[Mochamad Candra Wirawan Arief]]>;
<![CDATA[M. Suhaemi Syawal]]>;
<![CDATA[Aiman Ibrahim]]>;
<![CDATA[Roni Sewiko]]>;
<![CDATA[Chitra Octavina]]>
<![CDATA[ Depik Vol 10, No 3 (2021): December 2021 ]]>
Publisher : <![CDATA[Faculty of Marine and Fisheries, Universitas Syiah Kuala ]]>
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DOI: 10.13170/depik.10.3.22838
<![CDATA[Cijulang River is one of the leading ecotourism objects in Pangandaran, West Java Province, Indonesia. However, the river has a variety of activities that can increase the water pollution in the river such as Green Canyon cliffs tourism, ecotourism of mangrove conservation, housing, and industrial siting. Macrobenthos is one of the bio-indicators that can assess the rate of water pollution in rivers, especially their organic pollutants. Therefore, this research aims to determine water pollution status in Cijulang River Tourism by comparing various biotic indices. The study was conducted at four site sampling locations from upstream to downstream in the rainy season period and dry season period using different methods namely, line transect model, water quality assessment by biological indexing (diversity, species dominant, and family biotic), species deficit, and organic measurement. The research showed 5873 macrobenthos and divided into 27 species with an average abundance of 167 ind.m-2 and are mainly dominated by gastropod species Faunus ater (40%). They are extreme species that can live in high organic pollution and water salinity. This divided the research of quality water assessment of Cijulang River into three categories as follows: slightly polluted (score 36-46) at Green Canyon site, moderately polluted (score 50-60) at Boat Shelter and Muara Cijulang location, and highly polluted (score 66) at Nusawiru site.Keywords:RiverBio-indicatorOrganicAquatic pollution]]>
<![CDATA[The effect of NPK fertilizer with different dosage on the growth rate seaweed (Caulerpa racemosa) ]]>
<![CDATA[Riyadi Subur]]>;
<![CDATA[Muhammad Irfan]]>;
<![CDATA[Nebuchadnezzar Akbar]]>
<![CDATA[ Depik Vol 10, No 3 (2021): December 2021 ]]>
Publisher : <![CDATA[Faculty of Marine and Fisheries, Universitas Syiah Kuala ]]>
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DOI: 10.13170/depik.10.3.20848
<![CDATA[NPK is a type of fertilizer that plays a role in increasing growth and survival in plants such as seaweed. This study aims to determine the effect of different NPK fertilizer doses on the growth rate of seaweed (Caulerpa racemosa), and to determine which NPK fertilizer dosage has the best effect on the growth rate of C. racemosa. Research begins with collecting samples of seaweed in coastal waters. Ternate Island District Kastela, and the cultivation process is carried out on Jalan Jan, Tabona Village, South Ternate City. The time of the research was two months from August to October, 2020. This study used 12 units of cool box in the form of cork with a size of 90 x 30 cm, which is used as a container for maintaining of C. racemosa. In each treatment using a seed weight of 50 grams. The NPK fertilizer dosage treatment tested was 4 doses, with 3 replications, namely: treatment A: 40 ml NPK fertilizer; B: 60 ml NPK fertilizer; C: 80 ml NPK fertilizer; D: 0 ml NPK fertilizer (control). Research containers using random placement. The design used was a completely randomized design (CRD), using analysis of variance (ANOVA). The results obtained showed that NPK fertilizer with different doses the effect is not significantly different on the growth rate of C. racemosa with the highest average growth rate in treatment C amounting to 8.725%, followed by treatment B of 8.178%, treatment A of 7.761%, and the lowest was treatment D of 6.519%.Keywords:NPKSeaweedCaulerpa racemosaGrowth rate]]>
<![CDATA[Strategies for the development of the Bajomulyo Coastal Fishing Port, Pati, Central Java ]]>
<![CDATA[Muhammad Irham Khoirul Jauhari]]>;
<![CDATA[Agus Suherman]]>;
<![CDATA[Imam Triarso]]>
<![CDATA[ Depik Vol 10, No 3 (2021): December 2021 ]]>
Publisher : <![CDATA[Faculty of Marine and Fisheries, Universitas Syiah Kuala ]]>
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DOI: 10.13170/depik.10.3.21601
<![CDATA[The fishing port has an important role in supporting activities in the fishery sector which includes serving as a place of preparation, and where to land catches as well as market them. Therefore, this research aims to analyze the level of facilities utilization at CFP Bajomulyo using SOAR and assign the development strategy. The research was carried out in January 2021 at the Coastal fishing port in Bajomulyo Village, Juwana District, Pati Regency. A descriptive method was used to analyze the condition of basic, functional and supporting facilities at CFP Bajomulyo. Data collection was carried out using survey methods and direct observations. The result showed 116% of the pier has been used (overutilized), 26% of the FAP building has been used (non-optimally), 36% of the shipping lane’s depth has been used, meaning the depth is sufficient or in accordance with the required standard, and 49% of its width has been used (non-optimally). Conclusively, the development strategies suggested include making an MoU between the government of Pati Regency and Central Java Province and always considering the availability of FRS facilities, ice factories, clean water, and ship docking around CFP Bajomulyo.Keywords:Development strategyPatiCFP BajomulyoSOAR]]>
<![CDATA[Microhabitat association and population status of the Luwuk introduced Banggai cardinalfish (Pterapogon kauderni Koumans, 1933) population ]]>
<![CDATA[Novalina Serdiati]]>;
<![CDATA[Abdul Gani]]>;
<![CDATA[Deddy Wahyudi]]>;
<![CDATA[Abigail Mary Moore]]>;
<![CDATA[Samliok Ndobe]]>
<![CDATA[ Depik Vol 10, No 3 (2021): December 2021 ]]>
Publisher : <![CDATA[Faculty of Marine and Fisheries, Universitas Syiah Kuala ]]>
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DOI: 10.13170/depik.10.3.23501
<![CDATA[The Banggai cardinalfish Pterapogon kauderni is the Indonesian national marine ornamental fish mascot, and an object of national and international conservation concern. The endemic population of this species is limited to the Banggai Archipelago in Central Sulawesi, Indonesia and a few nearby islands in North Maluku. In addition, introduced populations have become established, mainly along ornamental fish trade routes. The National Action Plan for Banggai Cardinalfish Conservation (NAP-BCFC) calls for monitoring and management of all P. kauderni populations. A survey of the Luwuk introduced P. kauderni population was carried out in October 2021. Data were collected at three sites with established P. kauderni populations: the ferry harbour, public harbour (Teluk Lalong) and a recreational area on the nearby coast (Kilo 5). P. kauderni were recorded by microhabitat association and size class (recruits, juveniles, adults). Data collected were compared with data from previous surveys where available. With the exception of one group in a sea anemone at Kilo 5, all P. kauderni were associated with Diadema sea urchins (D. setosum at all sites; D. savignyi at Kilo 5). At Kilo 5 P. kauderni the population structure indicates the possible capture of market-sized juveniles. Overall abundance was also lower compared to the polluted but unfished harbours. The proportion of recruits was significantly negatively correlated with the ratio of adult P. kauderni to Diadema urchins. The results will inform regional legislation currently in preparation to support sustainable management of P. kauderni populations, habitat and microhabitat in Central Sulawesi, as well as contributing to NAP-BCFC targets.Keywords:Banggai cardinalfishEndangered speciesDiademaMicrohabitat,MonitoringOrnamental fisheryLocal regulation]]>
<![CDATA[Analysis of research methodology on the content of heavy metals in sediments on the Indonesian coastal ]]>
<![CDATA[Sayed Abdul Azis]]>;
<![CDATA[Muhammad Irham]]>;
<![CDATA[Sugianto Sugianto]]>;
<![CDATA[Ichsan Setiawan]]>;
<![CDATA[Amri Adnan]]>
<![CDATA[ Depik Vol 10, No 3 (2021): December 2021 ]]>
Publisher : <![CDATA[Faculty of Marine and Fisheries, Universitas Syiah Kuala ]]>
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DOI: 10.13170/depik.10.3.21275
<![CDATA[Heavy metal pollution is one of the problems that often occurs in Indonesian coastal waters. Comparative methods of looking at heavy metal content in coastal sediments include a way to show similarities and differences between one or more articles by using certain criteria. Different comparison methods to see the heavy metal content in sediments include the AAS (Atomic Absorption Spectrophotometer) method, AAN (Netron Activation Analysis), Regression, and USEPA methods. Based on the comparison of 2 methods, namely: AAS and AAN methods, the most efficient in analyzing heavy metals in sediments in coastal areas is the Atomic Absorption Spectrophotometry (AAS) method compared to the Neutron Activation Analysis (AAS) method.Keywords:CoastalSedimentHeavy MetalSpectrophotometer]]>
<![CDATA[The effect of chitosan levels in feed on the growth and daily feed consumption of giant gourami (Osphronemus goramy) ]]>
<![CDATA[Dito Maryanto Putra]]>;
<![CDATA[Roffi Grandiosa]]>;
<![CDATA[Herman Hamdani]]>;
<![CDATA[Kiki Haetami]]>
<![CDATA[ Depik Vol 10, No 3 (2021): December 2021 ]]>
Publisher : <![CDATA[Faculty of Marine and Fisheries, Universitas Syiah Kuala ]]>
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DOI: 10.13170/depik.10.3.22609
<![CDATA[Chitosan is an ingredient that can be used as a feed additive. In aquaculture, chitosan can be used as an antimicrobial, antifungal, antioxidant growth-promoting and immunostimulant. This study aims to determine the optimum addition of chitosan to feed to increase growth and daily feed consumption of giant gourami. The method used in this research is an experimental method using a completely randomized design (CRD), which consists of five treatments and three replications. The treatments used were (A) without chitosan (control), (B) 2.5 g/kg feed, (C) 5 g/kg feed, (D) 7.5 g/kg feed, and (E) giving chitosan of 10 g/kg feed. The test fish used were giant gourami with a 6 – 8 cm length and a weight of 8 – 10 g. The container used was hapa measuring 1 x 1 x 1 m3 with a density of 15 fish per treatment and 42 days of maintenance. The feeding rate was 3% of the fish biomass. Data from observations of length and weight were analyzed using Analysis of Variance (ANOVA) with a 95% confidence level; if there was a significant difference, Duncan's multiple distance test was performed. The results showed that addition of chitosan 7.5 g/kg feed was effective in improving growth on giant gourami. During maintenance, absolute length growth was 2.90 ± 0.10 cm, absolute weight growth was 15.33 ± 1.19 g, daily growth was 36.51 ± 2.84%, feed conversion ratio was 1.69 ± 0.06, and survival rate was 100 ± 0.00%. This research concluded that the optimum level of addition of chitosan to increase growth and daily feed consumption of giant gourami was 7.5 g/kg feed.Keywords:ChitosanFeed additiveGiant gouramiGrowth]]>
