Genetic diversity and metapopulation structure of the brown swimming crab (Callinectes bellicosus) along the coast of Sonora, Mexico: Implications for fisheries management
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Author
Cisneros-Mata, Miguel ÁngelMunguía-Vega, Adrián

Rodríguez-Félix, Demetrio
Aragón-Noriega, Eugenio Alberto
Grijalva-Chon, José Manuel
Arreola-Lizárraga, José Alfredo
Hurtado, Luis A.
Affiliation
Univ Arizona, Sch Nat Resources & EnvironmIssue Date
2019-04
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ELSEVIER SCIENCE BVCitation
Cisneros-Mata, M. Á., Munguía-Vega, A., Rodríguez-Félix, D., Aragón-Noriega, E. A., Grijalva-Chon, J. M., Arreola-Lizárraga, J. A., & Hurtado, L. A. (2019). Genetic diversity and metapopulation structure of the brown swimming crab (Callinectes bellicosus) along the coast of Sonora, Mexico: Implications for fisheries management. Fisheries Research, 212, 97-106.Journal
FISHERIES RESEARCHRights
© 2018 Elsevier B.V. All rights reserved.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
Management of commercial fisheries resources is commonly done assuming that populations are spatially homogeneous throughout their geographic range. However, uneven gene flow can result in gradients of genetic diversity that can affect population dynamics and management reference points and may contribute to over-fishing. We examined whether the brown swimming crab, Callinectes bellicosus, fished along 1200 km on the coast of Sonora (Mexico) is a homogeneous population. Based on previous empirical evidence of differences in phenology, we hypothesized that C. bellicosus has a metapopulation structure which needs to be included in management tools. We conducted a genetic study of C. bellicosus taken at seven sites along the coast of Sonora and obtained their microsatellite genotypes. Recent gene flow, as well as the role of each site as source or sink, were investigated. We found a latitudinal gradient in genetic diversity and identified sites along the coast acting as sources or sinks of migrants. Central sites act as sources, while northern sites are sinks; the main source of migrants was the southern-most site. A predominantly asymmetric metapopulation structure composed of local populations with moderate connectivity may be explained by larval dispersal in the northward oceanic current during the spawning period. Including migration rates between sites in a metapopulation dynamics model of C. bellicosus and considering that fishing and management decisions in source populations will impact neighboring populations located downstream can improve current management of this important commercial fishery.Note
24 month embargo; published online: 21 December 2018ISSN
01657836Version
Final accepted manuscriptSponsors
Fundacion Produce Sonora [178727]; [2015-62798]Additional Links
https://linkinghub.elsevier.com/retrieve/pii/S0165783618303333ae974a485f413a2113503eed53cd6c53
10.1016/j.fishres.2018.11.021