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      Struktur Komunitas dan Kelimpahan Ikan Chaetodontidae pada Terumbu Karang Berdasarkan Jarak dari Muara Lobang Kelatak di Berau, Kalimantan Timur

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      Date
      2026
      Jenis/Type
      Skripsi
      Subtype
      Undergraduate Theses
      Author
      Nurrahman, Muhammad Kiflan
      Subhan, Beginer
      Arafat, Dondy
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      Abstract
      Ekosistem terumbu karang di Kabupaten Berau memiliki variasi posisi geografis yang berpotensi memengaruhi komunitas ikan karang di dalamnya. Penelitian ini bertujuan menganalisis struktur komunitas dan kelimpahan ikan famili Chaetodontidae berdasarkan perbedaan jarak lokasi pengamatan dari muara serta kaitannya dengan kondisi tutupan karang hidup. Pengambilan data dilakukan pada Juni 2025 di 11 Stasiun pengamatan di Kawasan Konservasi Pesisir (KKP3K KDPS).menggunakan metode Underwater Visual Census (UVC) untuk ikan dan Underwater Photo Transect (UPT) untuk tutupan terumbu karang. Hasil penelitian menemukan 12 spesies dengan total 122 individu, Chaetodon octofasciatus menjadi spesies paling dominan. Kelimpahan ikan lebih dipengaruhi oleh kondisi tutupan karang hidup, terdapat Stasiun dengan tutupan karang kerang tinggi menyokong kelimpahan yang lebih stabil, sementara dominasi komponen abiotik pada Stasiun tertentu menekan keberadaan ikan koralivor. Temuan ini menunjukkan bahwa kesehatan terumbu karang merupakan faktor kunci bagi keberlanjutan populasi ikan Chaetodontidae di wilayah tersebut.
       
      The coral reef ecosystem in Berau Regency has varying geographical positions that potentially affect the coral fish communities within it. This study aims to analyze the community structure and abundance of fish in the family Chaetodontidae based on differences in the distance of observation locations from the estuary and its relation to the condition of live coral cover. Data collection was carried out in June 2025 at 11 observation stations in the Coastal Conservation Area (KKP3K KDPS), using the Underwater Visual Census (UVC) method for fish and the Underwater Photo Transect (UPT) for coral reef cover. The study found 12 species with a total of 122 individuals, with Chaetodon octofasciatus being the most dominant species. Fish abundance is more influenced by the condition of live coral cover; there are stations with high hard coral cover supporting more stable abundance, while the dominance of abiotic components at certain stations suppresses the presence of corallivorous fish. This finding indicates that the health of coral reefs is a key factor for the sustainability of Chaetodontidae fish populations in the area. Keywords: abundance, Berau,
       
      URI
      http://repository.ipb.ac.id/handle/123456789/173754
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      • UF - Marine Science And Technology [2114]

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      Copyright © 2020 Library of IPB University
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      Contact Us | Send Feedback
      Indonesia DSpace Group 
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