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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) - Ilmu Bumi dan Planet (Lain-Lain)
Articles 563 Documents
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Variasi morfometrik tiga jenis kepiting biola jantan (Decapoda: Ocypodidae) yang ditangkap di Kawasan Mangrove Jaboi, Pulau Weh, Indonesia Djamani Rianjuanda; Ilham Zulfahmi; Kavinta Melanie; Chairun Nisa; Epa Paujiah; Irfannur Irfannur; Muliari Muliari; Rena Marlinda
Depik Vol 9, No 3 (2020): December 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.3.16887

Abstract

The objective of the present study was to analyze the morphometrics variation of three male fiddler crab species collected from Jaboi mangrove area, Weh island, Indonesia. A total of 50 male fiddler crab species from each species (Tubuca dussumieri, Gelasimus vocans and Austruca perplexa) were collected from three research station used digging method and direct capture. The number of morphological characters that measured was 18 characters. The water quality and soil parameters observed were salinity, pH of water and soil, water temperature, C-organic concentration in substrate and sediment type. ANOVA (confidence interval of 95%) and Discriminant Function Analysis was used for analizing the morphometric variation beetwen species. The results showed that the mangrove area of Jaboi, Weh island provides a suitable habitat characteristic for male fiddler crab. Tubuca dussumieri and Gelasius vocans tend distributed in the area with sediment type of mud, while Austruca perplexa tends distributed in the area with sediment type of sand. The result of statistical analysis showed that there were ten separate characters between Tubuca dussumieri and Gelasimus vocans, 17 separate characters between Tubtubuca dussumieri and Austruca perplexa, and 13 separate characters between Gelasimus vocans and Austruca perplexa. Morphometrics variation can be observed in the carapace, propodus, mouth, walking legs, and eye stalks.Keywords:Morphometric variationCarapacs lengthBig propudusSmall propudusWalking legsABSTRAKPenelitian ini bertujuan untuk mengetahui variasi morfometrik tiga jenis kepiting biola jantan yang ditangkap di kawasan mangrove Jaboi Pulau Weh, Indonesia. Sebanyak 50 ekor kepiting biola jantan dari masing masing jenis (Tubuca dussumieri, Gelasimus vocans dan Austruca perplexa) dikoleksi dari tiga titik stasiun penelitian menggunakan metode digging dan pengambilan langsung. Jumlah karakter morfometrik kepiting jantan yang diukur adalah sebanyak 18 karakter. Parameter kualitas air dan tanah yang diukur meliputi salinitas, pH air, pH tanah, suhu air, kandungan C-organik subtrat dan tipe sedimen. Analisis terhadap data morfometrik dilakukan menggunakan ANOVA (selang kepercayaan 95%) dan Discriminant Function Analysis. Hasil penelitian mengungkapkan bahwa kawasan mangrove Jaboi, Pulau Weh memiliki karakteristik habitat yang sesuai bagi kepiting biola. Tubuca dussumieri dan Gelasimus vocans cenderung terdistribusi pada wilayah dengan persentase tipe sedimen lumpur yang lebih tinggi, sementara Austruca perplexa cenderung terdistribusi pada wilayah dengan persentase tipe sedimen pasir yang lebih tinggi. Hasil analisis statistik menunjukkan bahwa terdapat 10 karakter pembeda antara Tubuca dussumieri dengan Gelasimus vocans, 17 karakter pembeda antara Tubtubuca dussumieri dengan Austruca perplexa dan 13 karakter pembeda antara Gelasimus vocans dengan Austruca perplexa. Variasi morfometrik tersebut dapat terlihat pada bagian karapas, capit, mulut, kaki gerak dan tangkai mata.Kata kunci:Variasi morfometrikPanjang karapasCapit besarCapit kecilKaki gerak
Komposisi dan status guild komunitas ikan di Waduk Sempor Jawa Tengah Nuning Setyaningrum; Sugiharto Sugiharto; Priyo Susatyo
Depik Vol 9, No 3 (2020): December 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.3.15094

Abstract

Abstract.The functional community is described depends on the function of species in utilization food (guild). The utilization of food is a process of energy transfers in the food chain and it is represented in the pyramid of numbers. The objective of this research was to analyze the structure community of fish and the guild compositions in Sempor Reservoir. This research applied a survey with purposive random sampling technique with four station in Sempor Reservoir. Sampling at each site was taken 4 replication with interval 1 monts.  The composition and status of the guild is carried out by mesuring the guild based on the position of the mouth, tooth type, gill filter type, and ratio of body length and intestine. Guilds are composed of compositions depicted by a number pyramid based on the number of species per station. The results of this reserach captured 439 individuals consists of 14 species and belong to 6 families that dominated by Cyprinidae. The number and species of fish caught were the most at the Bangkong river inlet (142 individuals) and the lowest at the center of the reservoir (60 individuals). Comparison of the composition of fish guilds at the four stations in the Sempor Reservoir shows that the number of omnivorous and carnivorous fish is obtained more than herbivorous fish. The composition of the guild at Kalianget river inlet (72.9%) and Central reservoir (42.7%) was dominated by carnivorous fish, while at Pengantalan river inlet (52.9%) and Bangkong (58.9%) were dominated by omnivorous fish. The composition of herbivorous fish is at least at all stations so that in general the composition of fish guilds in the Sempor reservoir has not been balanced.Keywords: species composition, guild, pyramid of number,Sempor reservoir  Abstrak. Komunitas secara fungsional menggambarkan fungsi spesies yang ditentukan dengan pemanfaatan sumber makanan (guild). Pemanfaatan makanan dalam rantai makanan merupakan proses transfer energi dan digambarkan dengan piramida jumlah. Tujuan dari penelitian ini adalah mengkaji komposisi dan  tingkat status guild  komunitas ikan yang tertangkap di  perairan waduk Sempor. Penelitian dilakukan dengan metode survei dan teknik purposive random sampling pada 4 stasiun di Waduk Sempor. Sampling dilakukan sebanyak 4 kali tiap bulan. Komposisi dan status guild dengan mengukur guild berdasarkan posisi mulut, tipe gigi, tipe tapis insang, dan rasio panjang tubuh dan usus. Komposisi guild digambarkan dengan piramida jumlah berdasarkan jumlah spesies per stasiun. Hasil penelitian diperoleh 439 individu terdiri dari  8 Familia dan 14 Spesies yang di dominasi familia Cyprinidae. Jumlah dan jenis individu ikan yang tertangkap paling banyak pada inlet sungai Bangkong (142 individu) dan terendah pada bagian tengah waduk (60 individu). Perbandingan komposisi guild ikan pada empat stasiun di waduk Sempor menunjukkan bahwa jumlah ikan omnivora dan karnivora lebih banyak diperoleh daripada ikan herbivora. Komposisi guild pada inlet sungai Kalianget (72,9%) dan Tengah waduk (42,7%) di dominasi oleh  ikan karnivora, sedangkan pada inlet sungai Pengantalan (52,9%) dan Bangkong (58,9%) di dominasi ikan omnivora. Komposisi ikan herbivora paling sedikit pada semua stasiun sehingga secara umum komposisi guild ikan di waduk Sempor belum seimbang.Kata kunci: komposisi jenis, guild, piramida jumlah, waduk Sempor
The effect of NPK fertilizer with different dosage on the growth rate seaweed (Caulerpa racemosa) Riyadi Subur; Muhammad Irfan; Nebuchadnezzar Akbar
Depik Vol 10, No 3 (2021): December 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.3.20848

Abstract

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
Settlement suitability mapping based on the salinity index in the Banda Aceh City Muhammad Rusdi; Muhammad Irham; Sugianto Sugianto; Ruhizal Roosli; Mohd Sanusi S Ahamad; Yudi Haditiar
Depik Vol 10, No 1 (2021): April 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.1.18413

Abstract

The availability of accurate land data is useful in planning, policymaking, regional development, and preserving the environment. Banda Aceh is the center of education and development in Aceh, Indonesia, which is located in the coastal area. The tsunami has had a significant impact on development and settlements in Banda Aceh. Currently, settlements in Banda Aceh rapidly grow also the need for land and water resources. Therefore, mapping the potential for residential land in Banda Aceh is required. This study examines land suitability in Banda Aceh based on the FAO salinity criteria and spatial data analysis by remote sensing methods. Based on the results, it is known that Banda Aceh has land suitable for settlement of around 85% or 2975 hectares. These areas are generally located close to watersheds and receive sufficient freshwater input. Meanwhile, areas far from rivers and close to the coast have brackish salinity. This area is not suitable as a residential area. There are about three sub-districts in Banda Aceh which are not suitable for settlement.Keywords:KrigingRemote sensingSettlementSalinity mappingCoastalBanda Aceh
Survival rate and growth performance of tilapia (Oreochromis niloticus) exposed in polyvinyl chloride microplastics Bagus Dwi Hari Setyono; Wiwin Iky Soenarky; Zaenal Abidin; Rangga Idris Affandi
Depik Vol 13, No 3 (2024): DECEMBER 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.3.37131

Abstract

Plastic is one of the materials most widely used by humans. The more plastic that is used, the more plastic waste is released into environment and will polute water areas in various sizes, both macroplastics and microplastics. Microplastic are classified as plastic particles whose diameter is less than 5 millimeters. One type of microplastic that has an adverse impact on the life of aquatic organisms is polyvinyl chloride (PVC). The aim of this research was to determine the effect of PVC microplastic exposure on the survival rate and growth performance of tilapia, Oreochromis niloticus. This study was conducted in a completely randomized design (CRD) consisting of four treatments with three replications. The treatments were as follows: MP0 = No addition of microplastics (control); MP1 = Addition of 5 mg/L microplastics; MP2 = Addition of 15 mg/L microplastics; MP3 = Addition of 20 mg/L microplastics. The results showed that exposure to polyvinyl chloride microplastics on the survival rate and growth performance of tilapia through water made a real difference to Survival Rate (SR), absolute weight growth, absolute length growth, Specific Growth Rate (SGR), Feed Convension Ratio (FCR) and the abundance of polyvinyl chloride microplastics in fish gut.Keywords:MicroplasticPolyvinyl chlorideTilapiaSurvival rateGrowth performance
Analysis the effect of handling facilities on the quality of fishes landed at fish auction market Ratih Purnama Sari; Yaser Krisnafi; Ayu Rizky Amalia; Edy Miswar
Depik Vol 13, No 3 (2024): DECEMBER 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.3.36925

Abstract

Research related to the influence of facilities on the quality of fish landed and auctioned has been done previously, but the catches under this study are still limited to large pelagic fish with complex fish auction facilities. This study was conducted for small pelagic fish where the handling facilities at this location are still very limited. Therefore, survey research with purpose to analyze the effect of handling facilities (ships, fish auction sites, baskets) on the quality of small pelagic fish. The data taken is daily data with the method of observation at the location on the ship, fish auction place, and baskets. The species that taken were Eleutheronema tetradactylum, Ilisha elongate, Pampus argenteus, and Johnius trachychepalus. Each species consists of 5 individuals. Its tests was done by looking at the organoleptic and pH values. The tests were done to every species of fish. The pH value was obtained by testing the fish meat sample on the meat pH meter, while the organoleptic value was obtained by looking at the physical condition of the fish using a score sheet of fresh fish quality parameters. Then after the results are obtained, an analysis is carried out to determine the magnitude of facility influence on fish quality by simple linear regression analysis. The organoleptic values of four kinds of samples were on average 6.84 - 4.95, while the pH values measured in these fish ranged from 6.3 - 5.94. The effect of fish handling facilities on the organoleptic value is 82% compared to other factors. The fish quality as measured by the organoleptic test showed a fairly good quality, while measured by the pH test showed good results. Handling facilities do not greatly affect the quality of fish and there are other factors that can affect the decline in fish quality other than facilities. The relationship between fish handling facilities and quality can give an overview of the contribution of handling facilities to fish quality.Keywords:Fish auction marketFish qualityHandling facilities
Seaweed and its antioxidant content at Batu Layar beach, Senggigi, West Lombok Regency Nunik Cokrowati; Fisma Apriliyanti; Nuryatin Nuryatin; Jayusri Jayusri; Muhammad Junaidi; Yuliana Asri
Depik Vol 13, No 3 (2024): DECEMBER 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.3.40014

Abstract

Seaweed is macro algae that it one of export commodity at Indonesia. In addition to having economic value, macroalgae also have an important role in aquatic ecosystems. macroalgae play a role as primary producers because of their ability to photosynthesize, produce organic matter, and oxygen in the aquatic environment. Waters on Lombok Island that are overgrown with seaweed include Batu Layar beach. Batu Layar sub-district is part of the tourism area located in the coastal area. Batu Layar sub-district includes a cultivation area consisting of a variety of land uses ranging from agriculture, livestock, fishing and so on. This study aimed to analyze the diversity of seaweed species in the coastal waters of Batulayar, Senggigi, West Lombok Regency along with antioxidant and chlorophyll-a content. The research was conducted in November 2023 in the waters of Batu Layar, Senggigi, West Lombok Regency. The research methods used in this study were survey methods and method explanation of antioxidant content and chlorophyll was carried out in the laboratory, by taking random samples based on the boundaries of the predetermined area as many as 4 stations. The result of this research are identified species of seaweed including Sargassum sp., Padina, Caulerpa, Galaxaura, Ulva, Gelidium, Acanthophora, Iaxaura, Halimeda, Boergesenia forbesii, Corallina, and Turbinaria. Padina antioxidant levels reached 81,31% and chlorophyll 14,35 mg/l. It can be concluded that there are 12 types of seaweed that grow wild consisting of four species each of green, brown, and red alga. Padina has the highest antioxidant content of 81,31%.Keywords:AquacultureAntioxidantChlorophyllSeaweedSargassum.
Environmental sensitivity spatial analysis for oil spill mitigation in rote Ndao district waters Dwi Ariyoga Gautama; Endang Koestati Sriharini; Yonvitner Yonvitner
Depik Vol 13, No 3 (2024): DECEMBER 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.3.37805

Abstract

The marine ecosystems in the southern part of Rote Ndao District, within the Timor Sea, could be harmed by oil spills from ships or offshore rigs operated by oil and gas companies in the Timor Sea block, shared by Indonesia, Australia, and Timor Leste. The assessment using Environmental Sensitivity Index (ESI) maps using the thematic data. Areas identified as most sensitive to oil spills include West Rote district (Boa and Nembrala villages), and Southwest Rote district (Oeseli, Landu, and Manuk villages and Ndana islands). The beach type in Rote Ndao which is dominated by sloped sandy beach is a substrate type that is easy to clean from oil spill. Conversely, the biodiversity component has the highest sensitivity. The socio-economic components that are most sensitive to the effect of oil spills are the main sources of livelihood include seaweed cultivation, fisheries, and marine tourism. Oil spill mitigation in Rote Ndao must be focused on oil spill risk management in the hotspot area based on the environmental sensitivity index. A plan to prevent oil spills can be created, targeting these hotspots to establish an early warning system for effective mitigation.Keywords:Environmental sensitivity indexoil spillRote Ndaobiodiversityrisk management
Effect of different stocking density on the growth performances of white leg shrimp (Litopenaeus vannamei) and milkfish (Chanos chanos) in polyculture system Gamal M. Samadan; Muhammad Irfan; Faisal Pitra; Muhammad Nur Findra; Supyan Supyan; Aras Syazili; Rovina Andriani
Depik Vol 13, No 3 (2024): DECEMBER 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.3.36783

Abstract

Polyculture is a way of cultivating two or more types of organisms in the same container for the purpose of efficient use of land. The purpose of this study was to determine the effect of different stocking densities on the growth of white leg shrimp and milkfish by polyculture and to determine the stocking density that influences the growth of white shrimp and milkfish by polyculture in ponds. The study was designed using a completely randomized design (CRD), consisting of 3 treatments and 3 replications. The results showed that the specific growth rates in the three treatments, both white leg shrimp and milkfish varied. Similarly, the absolute weight growth between white leg shrimp and milkfish. Survival rate of white leg shrimp in treatment C, 85.56%, treatment B, 72.81%, and treatment A, 66.04%. While, the survival rate of milkfish in the three treatments was 100%. The feed conversion ratio in treatment A, 0.43, treatment C, 0.28, and treatment B, 0.17 grams. The different stocking densities of white leg shrimp and milkfish polycultures did not affect the absolute weight growth of white leg shrimp and their specific growth rate. However, there is an effect on the absolute weight growth of milkfishKeywords:shrimpmilkfishpolyculturestockingdensity
Comparative analysis of acids and temperatures in gelatin extraction from the skin of yellowfin tuna (Thunnus albacares) Vicky Prajaputra; Sri Agustina; Nadia Isnaini; Agillia Nabila; Hikma Kasih Margolang; Sahra Apriani; Siti Maqfirah
Depik Vol 13, No 3 (2024): DECEMBER 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.3.41269

Abstract

Gelatin, a valuable biopolymer, is commonly derived from animal by-products such as fish skin, providing a sustainable alternative to traditional bovine and porcine sources. The extraction process is influenced by factors like acid type and temperature, which impact both yield and quality. This study aimed to compare the effects of citric acid and acetic acid, at two temperatures (50C and 60C), on the gelatin extracted from yellowfin tuna (Thunnus albacares) skin. The extracted gelatin was evaluated for yield, proximate composition, functional groups using FTIR, and surface morphology through SEM. Results indicated that acetic acid produced a significantly higher yield than citric acid at both temperatures, with the highest yield (10.10%) at 50C and the lowest (2.46%) from citric acid at 60C. Gelatin extracted with acetic acid also had higher protein content and lower moisture and ash levels. FTIR analysis confirmed the presence of characteristic gelatin functional groups, including Amide I, II, and III. SEM images showed a denser and more uniform structure in acetic acid-extracted gelatin, while gelatin extracted with citric acid had a more porous and irregular surface. SDS-PAGE analysis revealed stronger protein bands for gelatin extracted with acetic acid, indicating higher protein content and a more efficient extraction process. Both acid-extracted gelatins showed -chains and -chains, characteristic of denatured collagen. In conclusion, acetic acid proved to be more effective than citric acid in producing higher yield and superior quality gelatin from yellowfin tuna skin. Further studies should assess the gel strength and amino acid composition of the extracted gelatin.Keywords:environmental chemistrybelow waterbiopolymergelatinmarine chemistrywaste valorizationyellowfin tuna

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