Studi kelimpahan fingerling ikan terhadap ketersediaan pakan alami di perairan Danau Laut Tawar

Abdullah A. Muhammadar, Junaidi M. Affan, Amiruddin A. Bakar

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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DOI: https://doi.org/10.13170/depik.7.3.12603

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PUBLISHER ADDRESS:

Faculty of Marine and Fisheries
Universitas Syiah Kuala
Jalan Meureubo No. 1, Kopelma Darussalam
Banda Aceh, 23111, Indonesia

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This work  is licensed under a Creative Commons Attribution - 4.0 International Public License (CC BY - 4.0).

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