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    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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    Cisneros-Mataetal2019.pdf
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    Author
    Cisneros-Mata, Miguel Ángel
    Munguía-Vega, Adrián cc
    Rodríguez-Félix, Demetrio
    Aragón-Noriega, Eugenio Alberto
    Grijalva-Chon, José Manuel
    Arreola-Lizárraga, José Alfredo
    Hurtado, Luis A.
    Affiliation
    Univ Arizona, Sch Nat Resources & Environm
    Issue Date
    2019-04
    Keywords
    Genetic structure
    Metapopulation
    Callinectes bellicosus
    Larval dispersal
    Connectivity
    
    Metadata
    Show full item record
    Publisher
    ELSEVIER SCIENCE BV
    Citation
    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 RESEARCH
    Rights
    © 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 2018
    ISSN
    01657836
    DOI
    10.1016/j.fishres.2018.11.021
    Version
    Final accepted manuscript
    Sponsors
    Fundacion Produce Sonora [178727]; [2015-62798]
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S0165783618303333
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.fishres.2018.11.021
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