Some aspects of biology and population dynamics of the goby pseudapocryptes elongatus (Cuvier 1816) in the mekong delta

Abstract

The goby, Pseudapocryptes elongatus (Cuvier, 1816), is a common and commercial fish in the coastal areas of the Mekong Delta, Vietnam. This species is recently cultured in semi-intensive and intensive farming system. However, the seeds are collected only from the wild and not enough for aquaculture. Meanwhile, studies on the biology of this species are still limited, especially on the reproductive biological characteristics. Therefore, some aspects of the biology and population dynamics of the goby Pseudapocryptes elongatus distributed in the coastal mud flat areas of the Mekong Delta were investigated from January 2004 to June 2005. The fish populations were collected and examined to determine the reproductive biological characteristics. Threats to its natural population were identified and the results can be used for sustainable use of the fish populations and aquaculture purposes.