Struktur Komunitas Sumberdaya Ikan Padang Lamun di Pantai Pandaratan, Sumatera Utara

Journal of Tropical Fisheries Management

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Title Struktur Komunitas Sumberdaya Ikan Padang Lamun di Pantai Pandaratan, Sumatera Utara
Community Structure on Seagrass Fish Resources at Pandaratan Beach, North Sumatra
 
Creator Pulungan, Ahyar
Inrika, Huwilda
Fadhilah, Amanatul
 
Description Padang lamun berfungsi sebagai daerah asuhan (nursery ground), sebagai tempat mencari makan (feeding ground), dan daerah untuk perlindungan. Penelitian ini bertujuan untuk mengetahui Struktur Komunitas Sumberdaya ikan di ekosistem lamun yang dilakukan di pantai Pandaratan, Kecamatan Sarudik, Kabupaten Tapanuli Tengah dari Maret hingga April 2018. Gill net adalah alat untuk menangkap ikan di tiga stasiun yang ditentukan. Keragaman ikan dapat dinilai dengan melihat komposisi spesies ikan dan indeks keanekaragaman. Hasil penelitian ini menunjukkan 196 individu, terdiri dari 12 famili dan 14 spesies. Jumlah spesies ikan tertinggi di stasiun II dengan total tangkapan 70 individu. Spesies ikan yang paling mendominasi di semua stasiun adalah Zenarchopterus gilli dengan nilai kelimpahan relatif di stasiun pertama 22,96%, stasiun kedua 20,01% dan stasiun terakhir 23,07%. Nilai indeks keanekaragaman (H’) dari semua stasiun dapat dikategorikan dalam kelas menengah yang nilainya antara 2.367-2.439. Nilai indeks kesetaraan semua stasiun dapat dikategorikan dalam kelas stabil dengan skor antara 0,897-0,903, sedangkan untuk nilai indeks dominasi semua stasiun dapat dikategorikan dalam kelas rendah yang skornya antara 0,102-0,127.
Seagrass beds are potential marine resources to be utilized, and ecologically, seagrass beds are some of the important functions of the coastal area. Many organisms are ecologically and biologically very dependent on the presence of seagrasses. The ecosystem is an important food source for the organism by many sea organisms that use it as a spawning place. This study aims to determine the diversity of fish in seagrass beds in Padaratan Beach, Sarudik Subdistrict, Central Tapanuli Regency. A gillnet is used to obtain fish samples at three observation stations during the period from mid-March to April 2018. Fish diversity can be agreed by looking at the composition of fish species and diversity index. The results of this study show the total number of fish obtained, 196 individuals, consisting of 12 families and 14 species. The highest number of fish catches is at Station II with a total catch of 70 individuals. The highest relative abundance of stations I, II, and III with values ​​of 22.96%, 20.01%, and 23.07% are found in fish species from the family Hemaramphidae with Zenarchopterus gilli species. The diversity index value (H') of all observation stations shows that species richness is in a moderate condition with values ​​of the station I (2,339), station II (2,439) and station III (2,367). While the uniformity value (e), shows the value of station I (0.866) station II (0.924) and station III (0.897) observations are in a stable condition (0.75 <e d ”1.00). Such conditions indicate that the distribution at each observation station is equitable.
 
Publisher IPB PRESS
 
Date 2020-03-28
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://journal.ipb.ac.id/index.php/jurnalppt/article/view/30909
10.29244/jppt.v4i1.30909
 
Source Journal of Tropical Fisheries Management; Vol. 4 No. 1 (2020): Journal of Tropical Fisheries Management; 1-7
2614-8641
2598-8603
 
Language ind
 
Relation http://journal.ipb.ac.id/index.php/jurnalppt/article/view/30909/20180
 
Rights Copyright (c) 2020 Journal of Tropical Fisheries Management
 

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