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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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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 ikan di perairan ekosistem mangrove Desa Jaring Halus Kabupaten Langkat, Sumatera Utara Dhiandra Puteri; Hasan Sitorus; Ahmad Muhtadi
Depik Vol 6, No 2 (2017): August 2017
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.6.2.6656

Abstract

Mangrove areas of Jaring Halus village have the potential of fish resources. Fish found in mangrove ecosystems, both settled and just transit to spawning and nursery will increase biodiversity in these ecosystems. This study aims to determine the diversity of fish species found in the waters of the mangrove areas of Jaring Halus village Langkat District. Sampling was done 3 times in December 2016 - January 2017 with an interval of 2 weeks for a period of two months. Fish samples obtained by using nets to catch fish (Fixed Gill Net) that is attached to the stake. Total fish species were obtained as many as 19 species of fish belonging to the 8 orders, 14 families, and 16 genera. Fish from Family Mugilidae and Ambassidae and Gobiidae always found in every station and at every time of data collection. In station 1 found 12 species, station 2 found 10 species and station 3 found nine types. The first sampling was obtained 11 species of fish, the second sampling found 15 species of fish. In the third sampling found 14 species of fish. The fish was dominated seriding fish (A. buruensis) of family Ambassidae, anchovy spikes (S. heterolobus) of family Engraulidae, and mullets (V. Engeli) of family Mugilidae and Mudskipper (P. Kaloko) of family GobiidaeKawasan perairan mangrove Desa Jaring Halus memiliki potensi sumberdaya ikan. Ikan yang terdapat pada ekosistem mangrove, baik yang menetap atau hanya transit untuk melakukan pemijahan serta memelihara anakannya akan menambah keanekaragaman hayati pada ekosistem tersebut. Penelitian ini bertujuan untuk mengetahui keragaman jenis ikan yang terdapat pada perairan kawasan mangrove. Sampling dilakukan sebanyak 3 kali yakni pada bulan Desember 2016 – Januari 2017 dengan interval kurun waktu 2 minggu selama 2 bulan. Sampel ikan diperoleh dengan cara menangkap menggunakan jaring ikan (Fixed Gill Net) yang ditancapkan dengan pancang. Total jenis ikan yang diperoleh sebanyak 19 jenis ikan yang termasuk ke dalam 8 ordo, 14 famili, dan 16 genus. Ikan dari Famili Mugilidae dan Ambassidae serta Gobiidae selalu ditemukan pada setiap stasiun dan pada setiap kali pengambilan data. Pada stasiun 1 ditemukan 12 jenis, stasiun 2 ditemukan 10 jenis dan stasiun 3 ditemukan 9 jenis. Sampling pertama yang dilakukan diperoleh 11 jenis ikan, sampling kedua ditemukan 15 jenis ikan. Pada sampling ketiga ditemukan 14 jenis ikan. Ikan yang mendominasi adalah ikan seriding (A. buruensis) dari family Ambassidae, ikan teri paku (S. heterolobus) dari family Engraulidae, dan ikan belanak (V. engeli) dari family Mugilidae dan ikan gelodok (P. kaloko) dari family Gobiidae. 
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
Hubungan variabilitas mixed layer depth kriteria ∆T=0,5 oC dengan sebaran tuna di Samudera Hindia bagian timur Dessy Teliandi; Otong Suhara Djunaedi; Noir Primadona Purba; Widodo Setiyo Pranowo
Depik Vol 2, No 3 (2013): December 2013
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.2.3.978

Abstract

Abstract. The Indian Ocean has an important role in the variability of aquatic ecosystems including fisheries resource. This study was conducted to determine the relationship between Mixed Layer Depth (MLD) criterion ∆T = 0.5 oC and distribution of tuna in the Eastern Indian Ocean. The study area was situated in the Eastern Indian Ocean at the coordinate 100 – 120oE dan 5 – 20oS. The data MLD criterion ∆T = 0.5 oC as well as data distribution and tuna catches which processed in the seasonal period were used in this study. Visualization result showed that the variation of MLD based on the depth value was inversely related to MLD variation based on temperature. MLD variations indicated that the depth of the shallowest MLD on the West Monsoon and deepest on the East Monsoon, while the highest temperature of MLD was recorded in Transitional Monsoon 1 and the lowest in Transitional Monsoon 2. The most widespread distribution of tuna were in Eastern Monsoon and the narrowest in Transional Monsoon 1. MLD variation relations with tuna catches have seen fairly high correlation of Pearson correlation value of 0.891 for tuna catches with depth MLD correlation and -0.927 for tuna catches correlation with temperature MLD.Keywords : Mixed Layer Depth (MLD); ∆T = 0.5 oC; Temperature; Depth; TunaAbstrak. Samudera Hindia merupakan salah satu perairan yang memiliki peranan penting dalam variabilitas ekosistem perairan termasuk didalamnya sumberdaya perikanan. Penelitian ini dilakukan untuk mengetahui hubungan Mixed Layer Depth (MLD) kriteria ∆T = 0,5 oC dengan sebaran Tuna di Samudera Hindia bagian Timur. Wilayah kajian penelitian ini adalah perairan Samudera Hindia bagian Timur dengan koordinat 100 – 120oBT dan 5 – 20oLS. Data yang digunakan adalah data MLD kriteria ∆T = 0,5 oC berdasarkan suhu dan kedalamannya, serta data sebaran dan tangkapan Tuna yang diolah dalam periode musiman. Hasil visualisasi menunjukkan bahwa variasi MLD berdasarkan kedalaman memiliki nilai berbanding terbalik dengan variasi MLD berdasarkan suhu. Variasi MLD menunjukkan bahwa kedalaman MLD paling dangkal berada pada Musim Barat yakni berkisar antara 22 – 60 dbar dan paling dalam berada pada Musim Timur dengan nilai berkisar antara 60 – 100 dbar, sedangkan suhu MLD tertinggi berada pada Musim Peralihan 1 yakni 28,5 – 29,5 oC dan terendah pada Musim Peralihan 2 dengan nilai berkisar antara 23 – 29 oC. Sebaran Tuna paling luas berada pada Musim Timur dan paling sempit berada pada Musim Peralihan 1. Hubungan variasi MLD dengan hasil tangkapan Tuna memiliki korelasi cukup tinggi yang terlihat dari nilai korelasi Pearson sebesar +0,891 untuk korelasi tangkapan Tuna dengan kedalaman MLD dan -0,927 untuk korelasi hasil tangkapan Tuna dengan suhu MLD.Kata kunci : Mixed Layer Depth; ∆T = 0,5 oC; Suhu; Kedalaman; Tuna
Aspek biologi dan dinamika populasi ikan tenggiri (Scomberomorus commerson Lacepede 1800) di Perairan Arafura Andina Ramadhan Putri Pane; Siti Mardlijah; Budi Nugraha; Ali Suman
Depik Vol 9, No 1 (2020): April 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.1.15797

Abstract

Abstract. The Arafura waters are rich in fishery resources such as shrimp, demersal fish, pelagic fish, and crustaceans. The Tenggiri fish (Scomberomorus commerson) is the mainstay of pelagic fisheries and is dominant landed in 2 (two) locations in Poumako (Mimika) and Dobo (Aru Islands). The number of samples measured during the study was 2,645 species derived from the waters of Arafura. The production of fisheries increased to be an indication that it is necessary to manage the intensive utilization of fish resources to keep the population. Management requires basic scientific study of biological aspects and population dynamics of Narrow-bareed mackerel. The study was conducted from March to December 2017 in Poumako and Dobo. The 35-130 cmFL fish size structure is dominant at a size of 95 cmFL with negative allometric growth. The length at the first catch is 78 cmFL with a growth rate of (K) = 0.86 per year and an infinitive length (L∞) = 136.5 cmFL. Fish were first to catch at the age of 10 months, and the age reached infinitive (L∞) is 9.5 years old. The recruitment of the fish from August (11.82%) up to October (18.13%) with a peak of September at 23.75%. The fishing mortality (F) is higher than that of natural mortality (M) so that the exploitation rate (F) = 0.67, which indicates that overfishing has occurred in this area. One form of fisheries management that can be done is to limit the fishing season to provide the opportunity of fish to reproduce and recruitment to restore the population.Keywords: Biological aspects, dynamic population, Scomberomorus commerson, Arafura, Poumako, Dobo Abstrak. Perairan Arafura kaya akan sumberdaya perikanan baik udang, ikan demersal, ikan pelagis dan krustasea. Ikan tenggiri (Scomberomorus commerson) menjadi andalan perikanan pelagis dari perairan ini dan dominan didaratkan pada dua lokasi yaitu di Poumako (Mimika) dan Dobo (Kepulauan Aru). Jumlah sampel yang diukur selama penelitian adalah 2.645 ekor ikan tenggiri. Adapun tujuan dari kajian ini untuk perencanaan pengelolaan terhadap pemanfaatan ikan tenggiri yang semakin pasif dieksploitasi sehingga populasinya tetap terjaga. Oleh karena itu pengelolaan ini memerlukan dasar kajian ilmiah berupa aspek biologi dan dinamika populasi ikan tersebut. Penelitian ini dilakukan dari Maret hingga Desember 2017 di Poumako dan Dobo. Hasil analisis distribusi panjang ikan menunjukkan nilai antara 35-130 cmFL, dimana dominan yang tertangkap pada ukuran 95 cmFL dengan pola pertumbuhan allometrik negatif. Ukuran pertama kali ikan tertangkap adalah 78 cmFL dengan laju pertumbuhan (K) = 0,86 per tahun dan panjang infinitif (L∞) = 136,5 cmFL. Ikan pertama kali tertangkap diestimasikan pada usia 10 bulan dan umur saat mencapai panjang infinitif (L∞) adalah 9,5 tahun. Rekruitmen ikan ini diestimasikan berlangsung pada Agustus (11,82%) hingga Oktober (18,13%) dengan puncak rekruitmen terjadi pada bulan September sebesar 23,75%. Nilai kematian akibat penangkapan (F) lebih tinggi dibandingkan dengan kematian alamiah (M) sehingga tingkat pemanfaatannya (F) = 0,67 yang artinya ikan sudah mengalami overfishing. Salah satu bentuk pengelolaan perikanan ikan tenggiri yang dapat dilakukan adalah dengan membatasi musim penangkapan agar memberikan kesempatan ikan melakukan reproduksi dan rekruitmen di perairan sehingga dapat memulihkan populasi.Kata kunci: Aspek biologi, dinamika populasi, Scomberomorus commerson, Arafura, Poumako, Dobo
Pemantauan kondisi substrat menggunakan metode reef check di Perairan Selat Sempu, Kabupaten Malang Oktiyas Muzaky Luthfi; I Nyoman Januarsa; Hijrul Fajri; Fadil Muhammad; Nur Akhmad Tri Aji; Sofar Jumantry; Muhammad I. S. K. Ramadhan; Guntoro Ahmad Algadri; Firman Roganda; Mochamad F. A. Rizal; Ary Setyo Wicaksono; Amalia Safrudin Bendang; Albertus N. P. Christianda
Depik Vol 6, No 1 (2017): April 2017
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.6.1.5840

Abstract

The aim of this research was to know the coral reef condition in Sempu’s strait. This research has beeb conducted at December 2017 used PIT method in four research stations i.e. Teluk Semut 1, Teluk Semut 2, Watu Meja and Fish Apartement. In generally the substrate of Sempu strait was devided into two categories, they were living and non-living substrate. Living substrate include HC, SC, NIA, SP and OT while non-living were RKC, RC, RB, SD and SI. Station 1 was dominated by hard coral (33.75%), station 2 and 3 was by rock (59.38% and 40.63%), and station 4 was dominated by sand (39.38%) respectively. Based on the monitoring, the coral reefs ecosystem of Sempu Strait was categorised in damaged condition. It could be seen by the high covering of dead coral and the low covering of healthy coral along observed stations. The coral reefs rehabilitation program is needed to recover the reefs ecosystem in Sempu Strait.                                                          Penelitian ini bertujuan untuk mengetahui kondisi terumbu karang di Selat Sempu dengan cara mengetahui susunan dari substrat dasar perairannya. Pelaksanaan penelitian ini dilakukan pada Desember 2016 dengan menggunakan metode PIT di empat stasiun penelitian yaitu Teluk Semut 1, Teluk Semut 2, Watu Meja dan Fish Apartement. Hasil dari penelitian ini menunjukkan bahwa substrat dasar perairan di Selat Sempu terbagai atas dua yaitu living (HC, SC, NIA, SP dan OT) dan non-living (RKC, RC, RB, SD dan SI). Stasiun 1 didominasi oleh hard coral (33,75%), stasiun 2 didominasi oleh rock (59,38%), stasiun 3 didominasi oleh rock (40,63%), dan stasiun 4 didominasi oleh sand (39,38%). Berdasarkan monitoring yang telah dilakukan, ekosistem terumbu karang di Selat Sempu telah mengalami kerusakan hal ini dapat dilihat dari tingginya tutupan karang mati dan rendahnya tutupan karang hidup yang ditemukan di sepanjang stasiun penelitian yang dilakukan. Program rehabilitasi terumbu karang sangat diperlukan untuk memulihkan kembali kondisi ekosistem karang di Selat Sempu.
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).
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
Isolasi dan karakterisasi senyawa metabolit sekunder dari bakteri laut Streptomyces sp. Muhammad Bahi
Depik Vol 1, No 3 (2012): December 2012
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.1.3.105

Abstract

Abstract: Streptomyces is one of bacterial genus which has been considered as a potential source of many novel antibiotics from both terrestrial and marine microorganism. In this paper, four secondary metabolites have been isolated and characterized from a marine Streptomyces sp. B5798, namely phydroxyphenylacetic acid (2), indole-3-carboxylic acid (3), indole-3-acetic acid (4), and Macrolactin A (5), respectively. Two of them are common compounds, namely indole-3-carboxylic acid (3) and indole-3-acetic acid (4). The 3,4 dihydroxybenzaldehyde is a degradation product of phydroxyphenylacetic (2) in microorganism. Macrolactin A (5) showed cytotoxicity against brine shrimps test (A. salina). All structures of the isolated compounds were elucidated based on spectroscopic and mass spectrometry data.
Studi kelimpahan fingerling ikan terhadap ketersediaan pakan alami di perairan Danau Laut Tawar Abdullah A. Muhammadar; Junaidi M. Affan; Amiruddin A. Bakar
Depik Vol 7, No 3 (2018): December 2018
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.7.3.12603

Abstract

Abstract. This research was conducted onJuly 2018 in Lake Laut Tawar, Aceh Tengah District.This study aims to determine the abundance of fingerling fish and the availability of natural feed found in Lake Laut Tawar. The gillnet was used to sample the fingerling fish at three stations, including station 1 (One-one), station 2 (Toweren) and station 3 (Rawe) forweek. The parameters of measured water quality are at temperature, pH, DO (dissovlet oxygen), depth, and brightness. Sampling of natural feed (plankton extraction) was carried out at the place of fish collection, then prepared a standard plankton, and identified using microscopy. The results showed the highest abundance of fingerling fish obtained was thekeperas fish (Cyclocheilichthys apogon), with an abundance of 75%. While the lowest abundance value is kawan fish species (Poropontius bargensis), with 4% abundance value, and the highest plankton abundance in Lake Laut Tawar waters is at station 2 with an abundance value of 69.2485 ind / mL and the lowest abundance value is at 1 with an abundance value of 38.0637 ind / mL. Based on the results of the research conducted, it can be concluded that the abundance of fingerling fish is related to the availability of natural food in the waters of Lake Laut Tawar.Keywords: Abundance;Fingerling fish;Natural food;Lake laut tawar. Abstrak. Telah dilakukan penelitianpada Juli 2018tentang studi kelimpahan fingerling ikan terhadap ketersediaan pakan alami di perairan Danau Laut Tawar. Penelitian ini bertujuan untuk mengetahui kelimpahan fingerling fishdan ketersediaan pakan alami yang terdapat di perairan Danau Laut Tawar. Tahapan penelitian ini dimulai dari persiapan alat tangkap, penangkapan fingerlingikan pengukuran kualitas perairan,dan pengambilansampel pakan alami (pengambilan plankton). Alat tangkap yang digunakan ialah jaring joran (Gill net)dengan ukuran 1 inchi. Penangkapan  fingerling fishdilakukan pada tigastasiun, diantaranya stasiun 1(One-one),stasiun 2(Toweren)dan stasiun 3 (Rawe) dan pengambilan sampel dilakukan satu kali dalam satu minggu.Parameter kualitas perairanyang diukur ialah pada suhu, pH, oksigen terlarut, kedalaman, dan kecerahan.Pengambilansampel pakan alami (pengambilan plankton)dilakukan ditempat pengambilan ikan, kemudian menyiapkan plankton standard, dan diidentifikasi dengan mengunnakanmikroskop. Hasil penelitian menunjukkan kelimpahan tertinggi fingerling ikan yang didapatkan ialah jenis ikan Keperas (Cyclocheilichthys apogon),dengan nilai kelimpahan 75 %. Sedangkan nilai kelimpahan yang terendah ialah jenis ikan Kawan (Poropontius tawarensis),dengan nilai kelimpahan 4  %, dan kelimpahan plankton tertinggi pada perairan Danau Laut Tawar terdapat pada stasiun 2 dengan nilai kelimpahan 69,2485 ind/mL dan nilai kelimpahan yang terendah terdapat pada stasiun 1 dengan nilai kelimpahan 38,0637 ind/mL. Berdasarkan hasil penelitian yang telah dilakukan dapat disimpulkan bahwa kelimpahan fingerling fishberkaitan denganketersediaan pakan alami di perairan Danau Laut Tawar.Kata kunci:Kelimpahan;fingerling fish;Pakan alami;Danau laut tawar.

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