Fecundity and egg diameter of endemic fish (Telmatherina bonti Weber and De Beaufort, 1922) from Towuti Lake, South Sulawesi, Indonesia

Abstract

Lake Towuti are an ancient lake and an oligotrophic lake. The lake is a habitat for endemic fish species such as bonti-boni fish (Telamatherina bonti). These fish are of important economic value. The purpose of this study was to analyze fecundity and egg diameter of T. bonti in Towuti Lake. The research was conducted at Towuti Lake from January to December 2019. The Samples were collected using seser and it was separated between male and female based on morphological characteristics of the body and gonads. Gonads were preserved in fomaldehyde 4%. The absolute fecundity ranged from 442-1435 eggs. The relationship of fecundity with body weight was greater than the relationship of fecundity with total length. The diameter of the eggs inside the gonads varies. The type of T. bonti spawning was categoried of partial spawner.