Volume 67
Length Weight Relationship of Barbul de Piedra in the Cordoba´s Caribbean Sea
Authors
Olaya-Nieto, C.W., A.L. Martínez-González, and F.F. Segura-Guevara Download PDF Open PDF in BrowserOther Information
Date: November, 2014
Pages: 429
Event: Proceedings of the Sixty seven Annual Gulf and Caribbean Fisheries Institute
City: Christ Church
Country: Barbados
Abstract
The Barbul de Piedra is a catfish species almost endemic from Colombia's Caribbean coast, considered threatened by the IUCN. 457 individuals were collected for this study and the length-weight relationship and condition factor were estimated through TW = aTLb and Cf = TW/TLb, respectively. 330 females, 77 males and 50 undifferentiated were found, with sexual proportion female: male 4.3:1, differently than expected. The sizes ranged between 18.0 and 50.0 cm TL, the total weight between 46.0 and 1529.0 g, and the mean length in the catch was 30.8 cm TL, and was observed that 70.9% of individuals were caught below the length at first maturity estimated for the species. The lengthweight relationship for both sexes was TW = 0.006 (± 0.05) TL 3.16 (± 0.03), n = 457, r = 0.99, with positive allome-tric growth coefficient and high correlation. The growth coefficient ranged between 2.93 (May) and 3.35 (April), with statistically significant differences and the condition factor ranged from 0,003 (April, August, and October) and 0.012 (May), without statistically significant differences; confirming the premise of the inverse relationship between this parameter and the growth coefficient of length-weight relationship of Barbul de Piedra.