Zainal A. Muchlisin

pp. 483 - 488

Abstract

Depik fish, Rasbora tawarensis is an endemic and threatened species in Lake Laut Tawar (Central Aceh, Indonesia),
and the population of depik has been decreased drastically over the last two decades. Information about distribution patterns
is crucially needed in relation to plan better conservation strategies. Hence, the objective of present study was to evaluate the
distribution patterns (spatial and seasonal distribution) based on catch per unit efforts and fish abundance data. Stratified
random sampling was utilized in this study. Two fishing grounds were selected based on information from local fishermen,
and a total of 14 fishing sites (seven sites per fishing ground) were determined randomly. Sampling was conducted in different
seasons; dry and wet season. The Rasbora tawarensis is widespread in the lake but most abundant in shallow waters and
the near shore, however, the size is small on average for this area. In contrast, bigger fish was found in deep waters offshore,
but with lower abundance. In conclusion, the distribution of depik is not seasonally dependent, but more spatially