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All Journal Journal of Tropical Biodiversity and Biotechnology
Farida Nur Rachmawati
Faculty of Biology, Universitas Jenderal Soedirman, Jl. Dr Soeparno No 63 Karangwangkal Purwokerto 53122, Central Java, Indonesia. Tel./Fax. +62-281-637894
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology

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Anatomical and Histological Characteristics of Gonad of Tropical Eel Anguilla bicolor McClelland, 1844 in Different Length Body Size Farida Nur Rachmawati; Ridwan Affandi; Yulia Sistina
Journal of Tropical Biodiversity and Biotechnology Vol 7, No 2 (2022): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.68824

Abstract

The sex status of Anguilla bicolor McClelland is difficult to be distinguished between males and females. Thus, we evaluated 309 fishes from The Serayu River, with length and weight range around 9 - 81 cm and 0.59 - 1260 g respectively to access the anatomical and histological characteristics of their gonads for each sex. Parameters assessed were body sizes, eye diameter, fin length, and gonad weight. The results showed that body length, weight, eye index, and gonadosomatic index of the male were significantly smaller (p<0.01) than those of the females. Fins index was not significantly different (p>0.05) between males and females. The histological structure of gonad showed that the eel gonads can be classified as either indifferent gonads, testis, or ovary based on the length of body size. Collecting all the data together it can be concluded that A. bicolor is a gonochoric. 
Co-Authors Ridwan Affandi Yulia Sistina