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      Makanan Ikan Rejung (Sillago sihama Forsskal, 1775) sebagai Dasar Pengelolaan di Perairan Muara Gembong, Kabupaten Bekasi

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      Date
      2026
      Author
      Kustiyanti, Renvi Nurlita
      Sulistiono
      Mashar, Ali
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      Abstract
      Salah satu sumberdaya ikan yang terdapat di perairan Muara Gembong adalah ikan rejung (Sillago sihama) yang termasuk jenis ikan demersal dari famili Sillaginidae. Kajian mengenai aspek makanan ikan rejung di perairan Indonesia masih terbatas, sehingga penelitian ini penting dilakukan guna melengkapi informasi biologi perikanan ikan rejung. Penelitian ini bertujuan menganalisis aspek makanan ikan rejung meliputi komposisi jenis makanan, luas relung, indeks isi lambung, tumpang tindih makanan, dan panjang usus relatif di Perairan Muara Gembong, Kabupaten Bekasi. Sebanyak 252 ekor sampel ikan diperoleh dari hasil tangkapan nelayan selama 6 bulan, yakni Juli hingga Desember 2025. Analisis data yang digunakan adalah distribusi frekuensi panjang, indeks bagian terbesar, luas relung makanan, indeks isi lambung, tumpang tindih makanan, dan panjang usus relatif. Hasil penelitian menunjukkan bahwa ikan rejung tergolong ikan karnivora dengan makanan utama berupa krustasea pada ikan rejung jantan dan zoobenthos pada ikan rejung betina. Ikan qrejung termasuk ke dalam kelompok ikan yang memanfaatkan beragam jenis makanan secara selektif dan memiliki nilai tumpang tindih yang tinggi antar jenis kelamin.
       
      Silver sillago (Sillago sihama) is one of the demersal fishery resources from the family Sillaginidae found in Muara Gembong Waters. Studies on the food habits of sand whiting in Indonesian waters remain limited, therefore this study was conducted to provide additional biological information on this species. This study aimed to examine the food habits of sand whiting, including food composition, niche breadth, stomach content index, food overlap, and relative gut length in Muara Gembong Waters, Bekasi Regency. A total of 252 fish samples were collected from fishermen's catches over a 6-month period, from July to December 2025. The analytical methods employed included length frequency distribution, index of preponderance, food niche breadth, stomach fullness index, food overlap, and relative gut length. The results showed that whiting is a carnivorous fish, with crustaceans as the main food of males and zoobenthos as the main food of females. Sand whiting selectively utilizes a diverse range of food types and exhibits a high degree of dietary overlap between sexes.
       
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      http://repository.ipb.ac.id/handle/123456789/174720
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      • UF - Aquatic Resources Management [2775]

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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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      Universitas Jember Digital Repository