Ortega-Lizárraga, G.G.; Muñoz-Rubí, H.A.; Rodríguez-Domínguez, G.; Pérez-González, R.; Mendívil-Mendoza, J.E.; Aragón-Noriega, E.A. Size-Structured Method Applied to the Brown Crab Fishery Callinectes bellicosus in the Gulf of California. Fishes2024, 9, 110.
Ortega-Lizárraga, G.G.; Muñoz-Rubí, H.A.; Rodríguez-Domínguez, G.; Pérez-González, R.; Mendívil-Mendoza, J.E.; Aragón-Noriega, E.A. Size-Structured Method Applied to the Brown Crab Fishery Callinectes bellicosus in the Gulf of California. Fishes 2024, 9, 110.
Ortega-Lizárraga, G.G.; Muñoz-Rubí, H.A.; Rodríguez-Domínguez, G.; Pérez-González, R.; Mendívil-Mendoza, J.E.; Aragón-Noriega, E.A. Size-Structured Method Applied to the Brown Crab Fishery Callinectes bellicosus in the Gulf of California. Fishes2024, 9, 110.
Ortega-Lizárraga, G.G.; Muñoz-Rubí, H.A.; Rodríguez-Domínguez, G.; Pérez-González, R.; Mendívil-Mendoza, J.E.; Aragón-Noriega, E.A. Size-Structured Method Applied to the Brown Crab Fishery Callinectes bellicosus in the Gulf of California. Fishes 2024, 9, 110.
Abstract
The crab’s fishery of the genus Callinectes is one of the most important fisheries in Mexico. Sonora and Sinaloa are the states in the eastern coast of the Gulf of California, the mainland coast. Sinaloa encompass the greatest production in Mexico of these species, in particular the Bahía Santa Maria La Reforma (BSMR), supply the most important catches. An administrative mandatory document for the fishery is the Management Plan of Crab. One of the main weaknesses found in it for Sonora and Sinaloa is the lack of fisheries assessment in both states. For this reason, a structured size method called CASA (Catch at Size Analysis) was applied in the BSMR, in the seasons 2000, 2011 and 2014 to C. bellicosus. The first catch size (CW50%) estimated for females were 97.5, 102.5 and 100 mm, while in males it was estimated at 117.5, 107.5 and 102.5 mm. In the specific case of fishing mortality (F), the algorithm allowed us to detect that in the larger sizes the greater fishing pressure is applied for both, females and males, yielding a weighted exploitation rate of 0.047 (2000), 0.119 (2011) and 0.426 (2014) for females and 0.045 (2000), 0.295 (2011) and 0.132 (2014) for males, all below 50% (E= 0.50), crab C. bellicosus in BSMR is not at risk of over exploitation.
Keywords
Baranov's equation; CASA Model; exploitation rate; fishing mortality
Subject
Biology and Life Sciences, Aquatic Science
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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