BIOLOGY AND POPULATION DYNAMICS OF BANANA SHRIMP (Penaeus merguiensis) IN THE TARAKAN WATERS, EAST BORNEO
Abstract: Study of biology and
population dynamic of banana shrimp (Penaeus merguiensis) in Tarakan waters,
East Borneo was carried out from January to November 2012. The aim of this
research was to identify the biological aspects and population dynamics of
banana shrimp. For estimating dynamic population, data were analysed using
FiSAT II. The result showed that length at first capture (Lc) of banana shrimp
by mini trawl (pukat hela) was 35 mm and the size at first maturity (Lm) was
33,86 mm in carapace length. Spawning occured all year around and reached it’s
peak in March. The growth coefficient (K) of banana shrimp was 1,45/year with
carapace asymptotic length (CL”) of 80 mm. Total mortality rate (Z) and natural
mortality rate (M) were 4,85/year and 1,76/year. While fishing mortality rate
(F) and exploitation rate (E) were 3,09/year and 0,64, respectively. The
exploitation rate of banana shrimp in Tarakan waters tended to be overexploited
so that it needed to be managed wisely and carefully by reducing the fishing
effort and fishing season especially on spawning season. The recruitment peak
of banana shrimp occured in May.
Keywords: Biological aspect;
population dynamic; banana shrimp; Tarakan waters
Author: Duranta D. Kembaren,
Ali Suman
Journal Code: jpperikanangg130030
