@conference {67, title = {Population Structure Of Bagrid Catfishfish Hemibagrus nemurus Collected At Five Different Rivers}, booktitle = {Internatiomal Symposium on Indonesian Biodiversity}, year = {2013}, publisher = {Faculty of Biology, Jenderal Soedirman University}, organization = {Faculty of Biology, Jenderal Soedirman University}, address = {Purwokerto, Central Java, Indonesia}, abstract = {Hemibagrus nemurus is one of the most exploited freshwater fish in Java. They are commonly found in the rivers, lakes, and reservoirs. However, a study on population structure and connectivity among rivers population of H. nemurus in Java Island was not available. Therefore, not much is known about connectivity of river populations in Java Island, despite the fact that such information is essential in determining the choice of genetic conservation unit for conservation purposes. This study aimed to investigate the population structure of the green catfish H. nemurus collected at five rivers in Java Island. The analysis was based on 470 bp fragment of the cytochrome c oxidase 1 gene from 79 individuals. H. nemurus showed high level of genetic diversity. Pairwise comparion showed high levels of genetic different among populations, indicating strong population structuring and limited gene flow. Each river population can be regarded as one gentic conservation unit. This pattern of population structure has important implication for sustainable management.}, keywords = {connectivity, genetic diversity, Green catfish, over-exploitation}, author = {Agus Nuryanto and Nunung Komalawati} }