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    Gene pool and connectivity patterns of Pinna nobilis in the Balearic Islands (Spain, Western Mediterranean Sea): Implications for its conservation through restocking

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    Type
    Article
    Authors
    González-Wangüemert, Mercedes
    Basso, Lorena
    Balau, Ana
    Costa, Joana
    Renault, Lionel
    Serrão, Ester A.
    Duarte, Carlos M. cc
    Hendriks, Iris E.
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Marine Science Program
    Red Sea Research Center (RSRC)
    Date
    2018-10-07
    Online Publication Date
    2018-10-07
    Print Publication Date
    2019-02
    Permanent link to this record
    http://hdl.handle.net/10754/631600
    
    Metadata
    Show full item record
    Abstract
    Pinna nobilis is an endemic bivalve of the Mediterranean Sea, and a vulnerable species registered as endangered and protected under the European Council Directive 92/43/EEC and Barcelona Convention. In early autumn 2016, a mass mortality event impacted P. nobilis populations in the south-western Mediterranean Sea, including the Balearic Islands. At the time of this study, P. nobilis still maintained high population densities along the Balearic coasts (Western Mediterranean). This study evaluated the connectivity of P. nobilis post-larvae and adults in seagrass habitats around the Balearic Islands and identified its source and sink populations. These objectives were reached through a multidisciplinary approach including population genetics (10 microsatellites) and hydrodynamic modelling. High genetic diversity was found and significant genetic differentiation (inferred by fixation index F) was detected between post-larvae samples, but not between adult populations. Significant genic and genotypic differentiation was recorded for adults and post-larvae. This pattern was confirmed by correspondence analysis using allele frequencies. The genetic connectivity pattern was consistent with marine currents and dispersal models. This work not only improves knowledge of the P. nobilis gene pool in south-west Mediterranean populations and their connectivity patterns, but is also crucial to help evaluate the possibility of recovery from source populations and the possibility of restocking programmes, as well as provide a solid base to establish effective marine reserve networks.
    Citation
    González-Wangüemert M, Basso L, Balau A, Costa J, Renault L, et al. (2018) Gene pool and connectivity patterns of Pinna nobilis in the Balearic Islands (Spain, Western Mediterranean Sea): Implications for its conservation through restocking. Aquatic Conservation: Marine and Freshwater Ecosystems 29: 175–188. Available: http://dx.doi.org/10.1002/aqc.2976.
    Sponsors
    This research was partially funded by the Spanish National project EstresX (CTM2012-32603) and Fundação para a Ciência e Tecnologia (FCT, Portugal) programme UID/Multi/04326/2013. L.B. was supported by a JAE pre-DOC fellowship and I.E.H. by a JAE-DOC fellowship (CSIC, Spain). MGW was supported by FCT Investigator Programme-Career Development (IF/00998/2014).
    Publisher
    Wiley
    Journal
    Aquatic Conservation: Marine and Freshwater Ecosystems
    DOI
    10.1002/aqc.2976
    Additional Links
    https://onlinelibrary.wiley.com/doi/full/10.1002/aqc.2976
    ae974a485f413a2113503eed53cd6c53
    10.1002/aqc.2976
    Scopus Count
    Collections
    Articles; Biological and Environmental Sciences and Engineering (BESE) Division; Red Sea Research Center (RSRC); Marine Science Program

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