LENGTH-WEIGHT RELATIONSHIP OF FRESHWATER MUSSEL (Etheria elliptica) FROM RIVER OGBESE, NIGERIA

Abstract

One hundred mussels (Etheria elliptica) were collected from River Ogbese in Ondo State, Nigeria to determine the
Length Weight Relationships (LWR). Sample collections were done fortnightly for a period of three months between
August and October 2010 (wet season) and between October and December 2011 (dry season).Each sample was
weighed and mantle length measured and recorded. Analysis of the LWR of E. elliptica showed that there is a strong
positive relationship between length and weight of samples collected in both seasons. A non-isometric growth was
observed in the collected samples, thus indicating an allometric condition factor in E. elliptica