Rendy Setiawan

Biology Department, Faculty of Mathematics and Natural Sciences, University of Jember, Indonesia

Retno Wimbaningrum

Biology Department, Faculty of Mathematics and Natural Sciences, University of Jember, Indonesia

Hari Sulistiyowati

Biology Department, Faculty of Mathematics and Natural Sciences, University of Jember, Indonesia

Arif Mohammad Siddiq

Biology Department, Faculty of Mathematics and Natural Sciences, University of Jember, Indonesia

Muhammad Agung Setiabudi

Biology Department, Faculty of Mathematics and Natural Sciences, University of Jember, Indonesia

DOI: https://doi.org/10.19184/lsb.v1i1.38088

ABSTRACT 

The river is an irrational body of water from upstream to downstream. The upstream part of the river generally has a narrow width of the river flow, heavy air currents, the right and left banks of the river have vegetation trees, sandy rocky substrate types, and are located in the highlands or mountains. This character is also found in the Upper Bedadung River in the Argopuro Mountains. Characteristics in the upper reaches of the river are thought to affect the existence of creatures that live in it, such as fish. The purpose of this study was to determine the composition and diversity of freshwater fish in the upper reaches of the Bedadung River, Jember Regency. The research method used was the roaming method. The exploration was carried out at four research stations. The results showed that in the upper Bedadung River, five species of fish were found including Channa gachua, Poecilia reticulata, Barbodes binotatus, Glyptothorax platypogon, and Nemacheilus fasciatus. The diversity of freshwater fish species in the upper reaches of the Bedadung River is moderate.

Keywords: Bedadung River, Diversity, Freshwater Fish.