Reproduction of Bairdiella ronchus (Pisces : Sciaenidae) in Cienaga Grandede Santa Marta, Colombian Caribbean

Citation
Lt. Castro et al., Reproduction of Bairdiella ronchus (Pisces : Sciaenidae) in Cienaga Grandede Santa Marta, Colombian Caribbean, REV BIOL TR, 47(3), 1999, pp. 553-559
Citations number
22
Categorie Soggetti
Biology
Journal title
REVISTA DE BIOLOGIA TROPICAL
ISSN journal
00347744 → ACNP
Volume
47
Issue
3
Year of publication
1999
Pages
553 - 559
Database
ISI
SICI code
0034-7744(199909)47:3<553:ROBR(:>2.0.ZU;2-G
Abstract
From February 1993 through January 1994 a total of 890 individuals of Baird iella ronchus (Cuvier) were captured in the Cienaga Grande de Santa Marta ( CGSM). Most were caught with casting nets, using the "corral" (pen) artisan method. The fish sizes and weights varied between 66 and 231 mm total leng th (TL), and between 3.5-156.2 g respectively. The species is typically est uarine, distributed in salinities between 7.3 and 37.3. Female gonadosomati c index (GSI) was 2.97-5.09 (males: 0.32-1.09). The serial correlation meth od did not find a direct relationship between salinity and GSI. Mean eggs s ize was 198.65 mu m, mean fecundity was 188 964 eggs/individual and is dire ctly related to total length and total weight. The condition factor (K) pre sented an annual mean of 0.013, and its variation seems to be related to th at of the GSI. Mean maturity size is 158 mm TL for females and around 154 m m TL for males. The sex rate was 2.7 females per male.