Studi Kelimpahan dan Keanekaragaman Makrozoobentos di Perairan Bedagai, Kecamatan Tanjung Beringin Kabupaten Serdang Bedagai
DOI:
https://doi.org/10.24114/jbio.v3i3.8107Abstract
Penelitian ini bertujuan untuk mengetahui kelimpahan, keanekaraaman, keseragaman, dan dominansi Makrozoobentos yang terdapat di Perairan Bedagai serta faktor fisika -kimia perairan. Pengambilan sampel dilakukan pada 4 (empat) stasiun berdasarkan rona lingkungannya. Populasi penelitian adalah seluruh makrozoobentos yang terdapat di Perairan Bedagai, sedangkan sampelnya adalah makrozoobentos yang berhasil tertangkap dengan Eckmangrab.Metode penelitian adalah deskriptif survei. Hasil penelitian menunjukkan, bahwa di Perairan Bedagai ditemukan 18 taksa makrozoobentos yang terdiri dari 13 Gastrpoda, 3 Annelida, dan 2 Arthropoda. Kelimpahan total makrozoobentos yang ditemukan selama penelitian berkisar antara 1506,56 “ 2692,31 ind/m2 , makrozoobentos yang dominan ditemukan adalah Pagurus sp (801,28) ind/m2)Indeks keanekaragaman, indeks keseragaman dan ideks dominansi makrozoobentos di perairan bedagai selama penelitian masing-masing berkisar antara 1,96 “ 2,42: 0,707 “ 0,894: 0,11 “ 0,9513.Faktor kimia-fisika perairan seperti suhu, kecerahan, kekeruhan, intensitas cahaya, oksigen terlarut (DO), pH, BOD5 dan salinitas masih mendukung kehidupan biota perairan.
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