Diversity of Fish Species in Several Sites Along the Brantas River East Java Indonesia

Q4 Biochemistry, Genetics and Molecular Biology

International Journal of Biology and Biomedical Engineering Pub Date : 2021-08-30 DOI:10.46300/91011.2021.15.43

N. Ahmad, L. Hakim, C. Retnaningdyah, B. Yanuwiadi

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Abstract

The purpose of this study is to describe the presence of species diversity and composition in Bratas River. Fish sampling was conducted in dry and rainy seasons in five locations, namely Batu City, Blitar City, Tulungagung regency, Jombang Regency, and Mojokerto Regency, East Java. This study collected 295 individual fishes belonging to 12 species. The 162 individuals were obtained in the dry season, while 133 individuals were captured in rainy season. The most dominant species was mujahir (Oreochromis mosambica) followed by keting (Mystus paniceps) and kutuk (Channa striata). The fish abundance significantly varied among study sites, while that of species richness and diversity did not differ significantly. Fish diversity in high elevation was the lowest, while that in relatively middle elevation was the highest. Compared to the previous report, fish species diversity in Brantas was decreasing, some species were not found. Three species were considered as exotic include Oreochromis mosambica, Clarias batracus, Oreochromis niloticus.

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印度尼西亚东爪哇布兰塔斯河沿岸几个地点鱼类的多样性

本研究的目的是描述布拉塔斯河物种多样性和组成的存在。鱼类取样于旱季和雨季在五个地点进行，即东爪哇的拔都市、必利达市、土伦加贡县、仲邦县和Mojokerto县。本研究共收集了12种295条鱼。旱季捕获162只，雨季捕获133只。最优势种为mujahir (Oreochromis mosambica)，其次为keting (Mystus paniceps)和kutuk (Channa striata)。不同研究点间鱼类丰度差异显著，但物种丰富度和多样性差异不显著。鱼类多样性以高海拔最低，中等海拔最高。与以往报道相比，布兰塔斯的鱼类物种多样性呈下降趋势，部分物种未被发现。被认为是外来物种的有三种，分别是:莫sambica Oreochromis, batracus Clarias batracus, nilochromis。

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International Journal of Biology and Biomedical Engineering Biochemistry, Genetics and Molecular Biology-Biochemistry, Genetics and Molecular Biology (all)

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