The Length Weight Relationship and Condition Factors of tank goby Glossogobius giuris Hamilton, 1822 in Lapompakka Lake, Wajo Regency, South Sulawesi
Suwarni1 , Farah Nilamsari Kadir1, Joeharnani Tresnati1, Hadiratul Kudsiah1, Sri Wahyuni Rahim1

Faculty of Marine Science and Fisheries, Hasanuddin University, Makassar, Indonesia
Jln. Perintis Kemerdekaan Km 10, Makassar, 90245

Abstract

Lapompakka lake is one of the inland waters located in Tanasitolo District, South Sulawesi. Tank goby is one of the main commodity fish in Lake Lapompakka.This study aims to analyze the length-weight relationship and condition factors based on sex, observation time, and gonad maturity level of tank goby. The results of this study are expected to provide information on growth patterns and conditions of tank goby so that they are useful in determining sustainable management and utilization efforts. This research was conducted for three months (September - November). Tank goby samples were obtained from 2 fishermen who were fishing in Lapompakka Lake. Sample analysis was conducted at the Laboratory of Fisheries Biology, Department of Fisheries, Faculty of Marine and Fisheries Sciences, Hasanuddin University. The number of fish obtained was 212 individuals, consisting of 153 males and 59 females. Based on the results of the analysis, the growth patterns of male and female tank goby with a value of b = 2.4667 and the female with a value of b = 2.3770 have a negative allometric growth pattern, which indicates the increase in body length is faster than the increase in body weight of the fish. The value of the condition factor indicates that the tank goby is in good condition and are in the fat/plump category dan the condition factor of the tank goby increase along with an increase in the level of gonad maturity.

Keywords: Tank goby Glossogobius giuris, growth pattern, length-weight relationship, condition factor, Lapompakka Lake

Topic: Aquatic Ecology and Conservation (International)