for the purpose of sustainable exploitation of the fishery resources of oni river, ogun state, nigeria, the fish biodiversity assessment was carried out. this was conducted by enumerating and identifying fish species composition, measuring the fish length, fish weight, assessing the fish abundance and biomass, determining the length-weight relationships and the length-frequency of the fishes. a...

The state of Assam in India is recognized as one the hotspots freshwater fish diversity. Beki River an important tributary Brahmaputra River. A significant decrease this region has been a major source concern recent years. diversity encountered various anthropogenic threats that have led to loss biodiversity. In study, was studied six landing zone and 31 species were recorded. ichthyofaunal bel...

The silver catfish, Chrysichthys nigrodigitatus (Lacépède: 1803) is a highly valued food-fish included among the dominant commercial catches exploited in major rivers of Africa. To provide useful biological data for management, samples were collected monthly between January (2005) and December (2007) in three zones: I: Upper Cross River (grassland), II: Middle Cross River (mixed forest and gras...