Preliminary study on the length-weight relationship and condition factor of Pachymelania fusca in forcados river, Burutu

Pachymelania fusca forms part of the periwinkle species reported to have been over exploited in the Niger Delta region of Nig geria. This study was carried out to investigate the length-weight relationship and condition fa actor of P. fusca from Forcados River withh a view to obtaining information about their relative abundance and well-being for effecttive management and sustainability. The samples w were collected monthly between February 2016 and April, 2016. The length-weight relationship was calculated using the least square regression on log transformed data. The parameter ‘a’ ranged from 0.02–2.41. The growth exponent (b) ranged from 1.68–3.02 indicating negative allometric and near isometric growth pattern. The mean condition factor ranged from 8.81–13.54 with the highest value recorded in the month of A April, 2016. The growth in length was poorly related to the weight. The condition factor data indicated good well-being of the mollusc in Forcados River.