Open AccessBiological and Ecological Observation of Rasbora sp. for Conservation and Domestication Purpose in Lake Ie Sayang
Author(s) -
Fitria Rahmayanti,
Nurul Najmi,
Munandar,
Dini Islama
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/934/1/012013
Subject(s) - habitat , fish <actinopterygii> , environmental science , ecology , water quality , range (aeronautics) , overfishing , fishery , biology , materials science , composite material
Lake Ie Sayang provides habitat to several variety of aquatic animals including small fish such as Rasbora sp. However, their existences in nature are increasingly decline due to overfishing and degradation of its natural habitat. The objective of this study was to investigate some habitat characteristics, biological and ecological aspects of bileh fish ( Rasbora sp.). Water quality parameters were recorded in situ and fish samples were collected from the water in four stations during April to July 2021. Fish sex ratio and body length-weight were measured ex situ. The data are presented in table and analyzed descriptively. The result revealed that this fish was mainly found at station 1. This station is characterized by the presence of several aquatic plants as feeding ground and fish sanctuary. This fish was easy to find in the mid-water level to water surface and near the land. The water quality parameters revealed that the temperature was in the range 30.2°C to 31.9°C, pH 6.13 to 6.35, DO 3.0 mg/l to 5.25 mg/l, and transparency 47 cm to 58 cm. Fish sex ratio showed that the overall number of females was higher than males with the average range of fish body length-weight were 34.05 mm to 41.33 mm and 1.25 g to 1.58 g respectively.