The biology & population structure of Uca tangeri in Mbo riverNigeria

Studies on the reproductive biology condition factor mortality recruitment pattern and yield-per-recruit to the fishery of the West African fiddler crab Uca tangeri in Mbo river Akwa Ibom State Nigeria was conducted for 12 consecutive months (April 2012 – March 2013). Values of all physico-chemical parameters were taken in-situ using standard scientific equipments. Length-frequency data was analyzed using FISAT software. From the results Uca tangeri a brackish water crab can thrive in Mbo river(a freshwater system) and that it was not a highly fished species hence under-exploited. There is room for further utilization of the species.