Some population parameters of endeavour shrimp (metapenaeus ensis de hann) in Balikpapan surrounding waters, East Kalimantan

Study on the population parameters of endeavour shrimp (Metapenaeus ensis de Haan) was conducted in Balikpapan waters, East Kalimantan. Population parameters of the endeavour shrimp were calculated based on data collected during period of survey March-November 2006. Result showed that the growth parameter (K) of endeavour shrimp was 1.6 /year with maximum carapace length (L.) of 42.0 mm. Instantaneous total mortality (Z), natural mortality (M), and fishing mortality (F) were 4.52/year and 2.34/year, respectively. The exploitation rate (E) was estimated to be 0.52/year which indicated that the status of endeavour shrimp stock in Balikpapan surrounding waters was categorized as fully exploited. It is therefore, recommended that additional amount of fishing effort of the endeavour shrimp in this area should be stopped in the next year.