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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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Characterization of potential probiotic in digestive tract of Mugil cephalus (Linnaeus, 1758) Firdus Firdus; Cut Putri Fhatalina; Lenni Fitri
Depik Vol 11, No 2 (2022): August 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.2.25698

Abstract

Probiotics are beneficial microbes in living things that are useful for improving the balance of microbes in the digestive tract and have a positive influence on the physiology and healthiness of the host. This study aimed to obtain bacterial isolates that could be used as probiotics from striped mullet (Mugil cephalus) and to characterize it macroscopically, microscopically, and biochemically. Isolation of probiotic bacteria was carried out using the spread plate method. The medium used to isolate probiotic bacteria was MRSA (De Man Rogose Sharpe Agar) medium. The probiotic test was carried out by hydrolysis of starch and casein. The diversity of bacterial morphology was observed based on macroscopic, microscopic, and biochemical tests. A total of 2 probiotic bacteria (PIB 1 and PIB 2) were obtained. The characterization results showed that the two probiotic bacteria belonged to the Gram-positive bacteria, in the form of bacilli which had different colony morphology. The results of morphological and biochemical tests indicated that one bacterial isolate belonged to the genus Bacillus (PIB 1) and the other isolate belonged to the genus Lactobacillus (PIB 2).
Cyprinus carpio hematological changes after dietary Coffea canephora leaf extract for Aeromonas hydrophila infection Sulistyoningrum, Shandy; Mahasri, Gunanti; Ulkhaq, Mohammad Faizal; Kenconojati, Hapsari
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 2 (2023): AUGUST 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.2.28682

Abstract

Coffea canephora or robusta coffee was known as a medicinal plant that admitted various biological properties. However, its application as a medicinal plant in fish disease treatment has not been reported. This study aimed to investigate the effect of dietary robusta coffee leaf (RCL) extract on the survival rate and hematology of Cyprinus carpio infected by Aeromonas hydrophila. Two hundred fish were randomly divided into five treatment groups consisting of uninfected fish (UF), infected fish (IF), and a diet supplemented with different concentrations of RCL extract (30%, 40%, and 50%). The negative control group was injected by NaCl 0.9% and other treatment groups were injected by A. hydrophila. Feeding treatment was carried out for 7 days after clinical symptoms appeared. The results showed that RCL extract increases the survival rate and hematological parameters (number of erythrocytes, hemoglobin, and lymphocytes) significantly (P0.05). The highest survival rate (100%) was recorded in groups that accepted 50% of RCL extract. This current study indicates that RCL extract could be considered a potent medicinal plant for treating fish disease caused by A. hydrophila at the optimum dose of 50%.Keywords:AeromonasCoffea canephoraExtractHematologyCyprinus carpio
Biologi reproduksi udang mantis Cloridopsis scorpio di ekosistem mangrove Belawan, Sumatera Utara Rivo Hasper Dimenta; Rusdi Machrizal; Khairul Khairul; Rosmidah Hasibuan; Aini Qomariah Manurung; Mahya Ihsan
Depik Vol 9, No 2 (2020): August 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.2.15188

Abstract

Anthropogenic activities that tend to be exploitative in the mangrove ecosystem of Belawan are thought to have an impact on the biota associated with the ecosystem. One of the impacts is thought to be implied by mantis shrimp Cloridopsis scorpio (Latreile, 1828). The reproductive biology of the shrimp is the main object that needs to be studied in relation to the impacts. This study aims to determine the distribution of gonad maturity stage, gonad somatic index, and the length of the first mature of C. scorpio in the Mangrove Ecosystem of Belawan, North Sumatera. The research was conducted on March to May 2019 with a biweekly sampling period. The purposive random sampling was applied to choose three sampling stations in the research location. Mantis shrimp samples were caught using shrimp trawl. The result showed that the gonad maturity stage of males and females were dominated by Stage I. The gonad somatic index (GSI) range of males were 7.00-10.93 and female were 7.40-11.15. The GSI value of C. scorpio is closely related to its gonad maturity development. The length of the first mature (L50) of males were 205.50±10.65 mmBL and females were 186.0±10.48 mmBL.Keywords: Cloridopsis scorpio, Gonad maturity stage, Gonad somatic indeks, Length of the first mature ABSTRAKAktivitas antropogenik yang cenderung eksploitatif di kawasan ekosistem mangrove Belawan diduga telah berdampak terhadap biota-biota yang berasosiasi dengan ekosistem tersebut. Salah satu dampaknya dialami oleh udang mantis Cloridopsis scorpio (Latreile, 1828). Aspek reproduksi C. scorpio menjadi salah satu objek yang perlu dikaji berkaitan dengan dampak tersebut. Penelitian ini bertujuan untuk menganalisis sebaran tingkat kematangan gonad (TKG), indeks kematangan gonad (IKG), dan ukuran pertama kali matang gonad (L50) dari C. scorpio di ekosistem mangrove Belawan, Sumatera Utara. Penelitian dilakukan pada bulan Maret sampai Mei 2019 dengan periode pengambilan sampel dua mingguan. Metode purposive random sampling digunakan untuk menentukan tiga stasiun pengambilan sampel di lokasi penelitian. Sampel C. scorpio ditangkap menggunakan pukat udang. Hasil penelitian menunjukkan distribusi TKG C. scorpio jantan dan betina didominasi oleh TKG I. Nilai IKG C. scorpio jantan berkisar antara 7,00-10,93 dan C. scorpio betina berkisar antara 7,40-11,15. Nilai IKG C. scorpio berkaitan dengan tahap perkembangan gonadnya. C. scorpio jantan mengalami pertama kali matang gonad (L50) pada ukuran 205,50±10,65 mmBL dan C. scorpio betina pada ukuran 186,00±10,48 mmBL.Kata kunci: Cloridopsis scorpio, TKG, IKG, Ukuran pertama kali matang gonad
Posisi komponen GPP terhadap variasi konstituen harmonik pasang surut bulan Muharram di Stasiun Sabang Salnuddin Salnuddin; Nurhalis Wahidin; Jefry Bemba
Depik Vol 7, No 1 (2018): April 2018
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.7.1.7570

Abstract

The movement of celestial bodies produces a variation of a gravitational gradient as a tidal generation force (GPP). Position Sabang Station, declination maximum and position lunar month of Muharram aka n generate harmonic constituent character identifier of GPP, where the water level is the sum of the amplitude of harmonic constituent that generated at a certain time.This research is to determine the variation of harmonic constituents and identify the character of harmonic constituents of GPP component position characterization in Muharram month. The results show Katrakteristik tidal movement beginning of the month of Muharram in Sabang Station occurred 1-2 hours after ijtimak.. Value riding dominant water derived from the value of Mean Sea Level ( 52%), and the dominant contribution hamonik constituents derived from component M 2 (28 - 33%). Harmonic constituents M 2 does not show the position of the moon in Muharram, while the position of the sun is reflected in the constituent phase harmonic S 2..
Growth performance and survival rate of vannamei shrimp (Litopenaeus vannamei) post-larva stages in a super intensive cultivation system with varied densities Aprilia, Tulas; Agustama, Yoka; Rakhmawati, Rakhmawati; Marlina, Eulis
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 3 (2023): DECEMBER 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.3.30546

Abstract

Vannamei shrimp (Litopenaeus vannamei) holds significant economic importance in Shrimponesia as a prominent shrimp commodity. The post-larval stage often encounters challenges, primarily due to the shrimp's limited ability to adapt and survive in a new environment. Stocking density is a crucial factor influencing the growth and production performance of vannamei shrimp culture. This study aims to assess the optimal stocking density for achieving optimal growth and survival in L. vannamei. A 40-day maintenance trial was conducted at UD Mina Rahayu Kalianda to investigate the impact of different stocking densities on water quality in the maintenance media. The study utilized containers with varying stocking densities: treatment A (1 shrimp/L), treatment B (1.5 shrimp/L), and treatment C (2 shrimp/L), each with three replications. The findings revealed survival rates (SR) of 83.33% for treatment A, 62.78% for treatment B, and 58.33% for treatment C. Mean Body Weight (MBW) values were recorded as 1.2592 g/shrimp for treatment A, 1.1216 g/shrimp for treatment B, and 0.7728 g/shrimp for treatment C. Average Daily Growth (ADG) results showed 0.0313 g/shrimp for treatment A, 0.0279 g/shrimp for treatment B, and 0.0192 g/shrimp for treatment C. Based on the study, the recommended stocking density for white vannamei shrimp is 40 shrimp/L, demonstrating improved growth and survival rates for this species.
Percentage of the bycatch and discard composition in artisanal bottom trap fisheries Nofrizal Nofrizal; Afni Afriani; Deni Efizon; Romie Jhonnerie
Depik Vol 11, No 2 (2022): August 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.2.26106

Abstract

Data on bycatch in the fishing effort required to manage fisheries resources. Unfortunately, the data on small-scale and traditional fisheries is still lacking. It makes it challenging to make fishing policies and regulations. Survey activities and experimental fishing were conducted to determine and analyze the composition of the main catch, bycatch and discarded by the local fisher's bottom traps in Sibolga, North Sumatra, Indonesia. Five units of the trap with a size of 150 cm x 100 cm x 50 cm (length x width x height) were used to collect fish data. These five trap units operated in the fishing ground, where local fishers usually operate their fishing gear. The fishing operation carried out within 1 mile of the coastline with water depths ranging from 7-10 meters. The duration of trap setting around 5-7 days for each fishing operation. A motorboat operated with a weight of 5.8 GT. The results showed that the total bottom trap catch consisted of 329 individuals with a total weight of 151.4 kg and 12 demersal fish species. The main catch was 148 individuals (88.9 kg), or 44.7% of the total catch during the experiment i.e. Chepalapholis urodeta, Ephinephelus areolatus, Epinephelus chlorostigma, Plectropomus leopardus, Ephinepelus coioides, Lates calcarifer, Lutjanus malabaricus, and Lutjanus erytropterus. The bycatch was 151 individuals (57.1 kg) or 46.1% i.e. Lethrinus obsoletus, Lutjanus ehrenbergii, Acanthurus auranticavus, Platax teira, Nemipterus japonicus, Scarus rivulatus, Lutjanus johnii, Siganus canaliculatus, Caesio cuning, and Taeniura lymma.While the discarded catch amounted to 30 individuals (5.4 kg) or 9.2% i.e. Naso brevirostris, Diodon holocanthus, and Diadema setosum. The bycatch utilization obtained by fishers was 83.4%, and the unutilized was 16.6%. The percentage of fish sizes worthy for consumption was 135 individuals (74.6%), and the size unworthy for consumption was 46 individuals (25.4%).Keywords:Fishing groundFishing gear Fishing operation Main catchTrap
Kombinasi rumput laut (Eucheuma cottonii) dan kerang hijau (Perna viridis) sebagai biofilter logam berat timbal (Pb) Dian Viva Aurora Mayori; Boedi Setya Rahardja; Suciyono Suciyono; Lailatul Lutfiyah
Depik Vol 9, No 2 (2020): August 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.2.15762

Abstract

The rapid development of the industry in the coastal region has increased the concentration of heavy metals in waters. Furthermore, efforts to improve water quality in reducing the concentration of these metals are biofilter. The biofilter used in this study was a combination of E. cottonii and P. viridis. The study used Complete Random Design (CRD), with 4 treatments 5 replications. Pb heavy metal content testing uses AAS (Atomic Absorption Spectrophotometer). The results showed that the best treatment was in P2 (p 0.05), with the combination of E. cottonii and P. viridis at 62.50 and 225 g. The effectiveness of Pb heavy metal uptake is influenced by the density of E. cottoni, but inversely proportional to the density of P. viridis. Furthermore, in high stocking densities, E. cottonii is more effective in absorbing heavy metals than P. viridis.Keywords: E. cottonii, P. viridis, Biofilter, lead (Pb) ABSTRAKPesatnya perkembangan industri di wilayah pesisir merupakan salah satu penyebab meningkatnya konsentrasi logam berat dalam perairan. Salah satu upaya dalam perbaikan kualitas air dalam menurunkan konsentrasi logam tersebut adalah dengan biofilter. Biofilter yang digunakan pada penelitian ini yaitu kombinasi E. cottonii dan P. viridis. Penelitian menggunakan Racangan Acak Lengkap (RAL), dengan 4 perlakuan 5 ulangan. Pengujian kandungan logam berat Pb menggunakan AAS (Atomic Absorption Spectrophotometer). Hasil penelitian menunjukkan bahwa perlakuan terbaik terdapat pada P2 (p 0.05), dengan kombinasi E. cottonii dan P. viridis sebesar 62,50 dan 225 g. Efektifitas penyerapan logam berat Pb dipengaruhi oleh kepadatan E. cottoni, akan tetapi berbanding terbalik dengan kepadatan P. viridis. Selanjutnya, dalam padat tebar yang tinggi, E. cottonii lebih efektif dalam menyerap logam berat dibandingkan P. viridis.Kata kunci: E. cottonii, P. viridis, Biofilter, Timbal (Pb)  
Keragaman jenis ikan di Sungai Maro pada musim peralihan I Sisca Elviana; Modesta Ranny Maturbongs; Sunarni Sunarni; Chair Rani; Andi Iqbal Burhanuddin
Depik Vol 8, No 2 (2019): August 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.8.2.12128

Abstract

Abstract. The river is one of aquatic resource that is rich in organisms, including various types of fish. Maro River  has characteristics of a river that has a wide area of estuary area makes it a fishing area by local fishermen.This study aims to determine the structure of fish communities caught on the Maro River in the transition season I.This research was conducted in April - May 2018 on the Maro River in Merauke Regency.Determination of research stations was chosen based on differences in environmental conditions on the Maro River.Data analysis using ecological index: composition of fish species (P), frequency of occurrence (Fi), species diversity (H '), type uniformity (E) and dominance (D).The results obtained by the composition of fish species found as many as 18 species, of which the species most commonly found in station I were 13 species while the lowest was found in station II as many as 3 species.The highest frequency of acquisition is Kurtus gulliveri which is 100%. The highest percentage of attendance was obtained from the same species at 43%.The poverty index during the first transition season was 2,104, included in the criteria of moderate and medium community.The uniformity index of 0.455 is included in the low uniformity category, meaning that the spread of each type in the community is relatively even.The dominance index value during the first transition season is 0.221, indicating that no type dominates.the ecological index value obtained shows even distribution of fish and no one dominates.Overall the condition of the aquatic environment on the Maro River is still in a good and balanced environment.Keywords: Diversity, the first transition period of monsoon, Maro Rivers Abstrak. Sungai merupakan salah satu perairan yang kaya akan organisme didalamnya. Sungai Maro merupakan salah satu sungai yang ada di Kabupaten Merauke. Penelitian ini bertujuan untuk mengetahui struktur komunitas ikan yang tertangkap di Sungai Maro pada musim peralihan I. Penelitian ini dilaksanakan pada bulan April – Mei 2018 di Sungai Maro Kabupaten Merauke. Penentuan stasiun penelitian dipilih berdasarkan perbedaan kondisi lingkungan di Sungai Maro. Analisis data menggunakan indeks ekologi: komposisi jenis ikan (P), frekuensi keterdapatan (Fi), keanekargaman jenis (H’), keseragaman jenis (E) dan dominansi (D). Hasil penelitian diperoleh 13 jenis. Dari hasil penelitian, komposisi jenis ditemukan sebanyak 18, dimana jenis species yang paling banyak ditemukan pada stasiun 1 sebanyak 13 spesies sedangkan stasiun II ditemukan species paling sedikit yaitu sebanyak 3 species. Frekuensi keterdapatan yang paling tinggi yaitu species Kurtus gulliveri memiliki frekuensi keterdapatan yang paling tinggi yaitu 100%. Presentase kehadiran tertinggi diperoleh adalah jenis ikan kaca (Kurtus gulliveri) sebesar 43%. Indeks keanekargaman selama musim peralihan I sebesar 2,104, termasuk dalam kriteria sedang dan komunitas sedang. Indeks keseragaman sebesar 0,455 termasuk dalam kategori keseragaman rendah, artinya penyebaran individu setiap jenis didalam komunitasnya relatif merata. Indeks dominansi selama musim peralihan I sebesar 0,221, menunjukkan tidak ada jenis yang mendominasi. Indeks keanekaragmannya sedang, dengan indeks dominansi dan indeks keseragamannya rendah menandakan distribusi ikan yang merata dan tidak ada yang mendominasi. Secara keseluruhan kondisi lingkungan perairan pada Sungai Maro masih dalam lingkungan yang baik dan seimbang.Kata Kunci: Struktur komunitas, musim peralihan I, Sungai Maro
Inventory and compatibility of marine cadastre in the marine conservation area zoning (case study: Pulau Weh Nature Tourism Park) Zariansyah, Zariansyah; Sugianto, Sugianto; Rusdi, Muhammad; Irham, Muhammad; Abdullah, Faisal
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 1 (2024): APRIL 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.1.36713

Abstract

This quantitative research presents the classification of marine cadastres in the marine conservation area of Pulau Weh Nature Tourism Park. The marine cadastre classes were analyzed for their alignment with the marine management classes/blocks in the Pulau Weh Nature Tourism Park using an alignment logical matrix and overlay analysis. The field inventory results identified 7 marine cadastre classes in the marine conservation area of Pulau Weh Nature Tourism Park. The alignment classification of marine cadastre classes with the marine management classes/blocks in Pulau Weh Nature Tourism Park indicates that the aligned class covers an area of 476.26 hectares (9.07% of 5,247 hectares), the non-aligned class covers 441.08 hectares (8.41% of 5,247 hectares), and the transition class covers 4,329.75 hectares (82.52% of 5,247 hectares).Keywords:Marine CadastreCompatibilityAlignment logical matrixOverlay analysisNature Tourism Park
Plankton potential as bioindicator of trophic status of Lokop River Leuser Ecosystem Andri Yusman Persada; Suri Purnama Febri; Kartika Aprilia Putri; Herlina Putri Endah Sari; Rianjuanda Djamani
Depik Vol 11, No 3 (2022): DECEMBER 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.3.25034

Abstract

Lokop is one of the villages in East Aceh which has a watershed in the Leuser Ecosystem. Human activities have the potential to disrupt the Trophic Status of Lokop River, such as the use of pesticides for agriculture, household waste and the use of potassium for fishing. It is necessary to research the quality of the waters in the Lokop River. The plankton community present in river waters can be an indicator of environmental pollution by analyzing the saprobic index. This study aims to determine the index of plankton diversity and water quality in the Leuser Ecosystem of the Lokop River through the saprobic index. The research was conducted at three stations. A sampling of plankton was taken in the form of a 10 cc filtrate and five replications were carried out for each study site. Water quality measurements include pH, TDS, Temperature, transparancy, depth, and current. 11 potential species can be used as pollution indicators in the Lokop River, namely Cladophora sp, Diatoma elongatum, Fragilaria capucina, Oedogonium sp., Gonatozygon sp, Lyngbya agardh, Melosira sp., Merismopedia punctata, Microspora sp, Pinnularia sp, Synedra ulna. The plankton diversity index is in the medium category. Based on the Saprobic Index, the level of pollution at the research site was not to lightly loaded of organic pollution and lowly loaded of organic pollution.Keywords:IsoprobikPlanktonBioindicatorLokop

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