TY - JOUR AU - Rábago-Quiroz, Carlos Hiram AU - López-Martínez, Juana AU - Herrera-Valdivia, Eloisa AU - Nevárez-Martínez, Manuel O. AU - Rodríguez-Romero3, Jesús PY - 2017/01/13 Y2 - 2024/03/28 TI - Population dynamics and spatial distribution of flatfish species in shrimp trawl bycatch in the Gulf of California JF - HIDROBIOLÓGICA JA - RH VL - 18 IS - 3 SE - Artículos DO - UR - https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/899 SP - 177-188 AB - <p>By determining the specific composition, spatial distribution and population dynamics of flatfish species captured in <br />shrimp trawls’ bycatch in the Gulf of California, this study aims to contribute to the knowledge of bycatch fish population <br />which has thus far been of little interest. Samplings were taken from shrimp trawls’ in two fishing seasons (2002 and <br />2003) onboard shrimp fleets and also from two research cruises during closed shrimp season. The results showed 15 <br />species of flatfish belonging to 5 families: Achiridae, Bothidae, Cynoglossidae, Pleuronectidae and Paralichthyidae. <br />Paralichthyidae was the most abundant with 9 species. The range in sizes of these flatfish species varied in total length <br />from 20 to 380 mm, with the most frequent sizes ranging from 60 to 180 mm and only a few species of the Paralichthys<br />genera surpassing 250 mm in total length. The growth estimate parameter for the most abundant flatfish species varied <br />according to the longevity of these species. More than 50 % of the organisms sampled were of small size, and the <br />majority of these were captured before the sexual maturity which may have caused a potential effect on the population; <br />however the consequences of this action on the population are unknown.</p> ER -