Biodiversitas Journal of Biological Diversity
Vol. 25 No. 5 (2024)

Feeding ecology study of Asian redtail catfish, Hemibagrus nemurus (Teleostei: Bagridae), post-sediment flushing in Jenderal Soedirman Reservoir Central Java, Indonesia

DWI NUGROHO WIBOWO (Faculty of Biology, Universitas Jenderal Soedirman. Jl. DR. Soeparno 63, North Purwokerto, Banyumas 53112, Central Java, Indonesia)
SRI SUKMANINGRUM (Faculty of Biology, Universitas Jenderal Soedirman. Jl. DR. Soeparno 63, North Purwokerto, Banyumas 53112, Central Java, Indonesia)
ANI WIDYASTUTI (Faculty of Biology, Universitas Jenderal Soedirman. Jl. DR. Soeparno 63, North Purwokerto, Banyumas 53112, Central Java, Indonesia)
PETRUS HARY TJAHJA SOEDIBYA (Department of Aquaculture, Fisheries and Marine Science Faculty, Universitas Jenderal Soedirman. Jl. DR. Soeparno, Komplek GOR Soesilo Soedarman, North Purwokerto, Banyumas 53112, Central Java, Indonesia)
NUR LAILA RAHAYU (Program of Biology, Faculty of Sciences and Technology, Universitas Nahdlatul Ulama. Jl. Sultan Agung No. 42, South Purwokerto, Banyumas 53145 Central Java, Indonesia)



Article Info

Publish Date
12 Jun 2024

Abstract

Abstract. Wibowo DN, Sukmaninggrum S, Widyastuti A, Soedibya PHT, Rahayu NL. 2024. Feeding ecology study of Asian redtail catfish, Hemibagrus nemurus (Teleostei: Bagridae), post-sediment flushing in Jenderal Soedirman Reservoir Central Java, Indonesia. Biodiversitas 25: 2315-2322. Hemibagrus nemurus Vallenciennes 1840 is among the valuable fisheries commodities in Banyumas District and led to high exploitation. Research on H. nemurus is essential for its conservation, including its feeding ecology. Feeding ecology studies of H. nemurus have been conducted previously, but the relative examination of this Asian redtail catfish is lacking in Jenderal Soedirman Reservoir, Central Java, Indonesia. Therefore, this study aimed to investigate the feeding ecology of H. nemurus, focusing on post-sediment flushing in the Jenderal Soedirman Reservoir in 2022. Specimens were collected at nine sampling sites in the reservoir during morning and evening sessions, with observed parameters including mouth position, intestine length ratio, intestine content, and the index of preponderance (IP). The results showed that H. nemurus had a subterminal mouth position as well as shorter to slightly longer intestines than the standard body length (SL). Based on the IP value, diets inside the intestine were dominated by animal materials, namely fish compounds. Hence H. nemurus seemed to be predatory considering its detected piscivorous habits. The identified mouth position, intestine length, and dominant diets were similar to the reports on the same species from other regions. These feeding ecology data would provide essential information for the fisheries and conservation of H. nemurus in Jenderal Soedirman Reservoir.

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Journal Info

Abbrev

biodiv

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Description

The Biodiversitas Journal was first published in 2000 by the Department of Biology, FMNS, Universitas Sebelas Maret, Surakarta, Indonesia, then in 2006 it was co-published by the Society for Indonesian Biodiversity and that department; since 2017 it was also hosted by Smujo. From 2003-2012 it was ...