Some aspects of the biology and population dynamics of the dominant fish species in Kedungombo reservoir, Central Java, Indonesia

Abstract

The study was aimed to investigate some aspects of the biology and population dynamics of dominant fish species, namely Oreochromis mossambicus (Peter), Puntiusgonionotus (Bleeker), Puntius bramoides (Cuvier& Valenciennes), Mystacoleucus marginatus (Cuvier & Valenciennes), and Channa striatus Bloch in the Kedungombo Reservoir, Central Java, Indonesia. Gillnet sampling in six sub-fishing areas of the reservoir once a month for a 12 month period and catch assessment survey (CAS) at three fish landing sites were carried out. Length-based methods for fish population study were adopted.