Preliminary Gut Content Analysis of Fishes at Sungai Belat, Sungai Tuang, and Sungai Sabang, Sarawak

Yeong, Khai Pheng (2022) Preliminary Gut Content Analysis of Fishes at Sungai Belat, Sungai Tuang, and Sungai Sabang, Sarawak. [Final Year Project Report] (Unpublished)

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Abstract

A preliminary study on the fish diet and gut content analysis was conducted at three rivers which includes Sungai Belat, Sungai Tuang and Sungai Sabang in Samarahan, Sarawak. A total on fishes caught of 71 individuals were caught with Ariidae as the dominant family (73.20 %), followed by Gobiidae (5.60 %). The dominant species are Arius caelatus (N=35), followed by Arius sagor (N=13) and Arius argyropleuron (N=3). Mass method and frequency of occurrence method were used to examine the stomach contents. Six types of food category were identified namely digested matter, crustaceans, oligochaetes, algae, fishes and sand/mud were found as for gut content studies for the fishes. Feeding behaviour of all the species captured were identified based of herbivorous, carnivorous and omnivorous. 62.5% of the species were classified as carnivorous fish, 37.5% of the species were classified as omnivorous fish. Findings in this study serve as baseline data for future studies on feeding behaviour of freshwater fish in Sarawak.

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