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oai:recercat.cat:20.500.12327/24782025-10-22T11:27:41Zcom_2072_4428com_2072_4427col_2072_487898

First record and evidence of an established population of the North American mud crab Dyspanopeus sayi (Brachyura: Heterotremata: Panopeidae) in the western Mediterranean Schubart, Christoph D. Guerao, Guillermo Abelló, Pere Producció Animal Aqüicultura The panopeid crab Dyspanopeus sayi (Smith, 1869) is reported here from the Ebro Delta (Mediterranean coast of the Iberian Peninsula). Originally endemic to the Atlantic coast of North America, D. sayi was involuntarily introduced into Britain, France and the Netherlands, and into the Adriatic and Black Sea within the last thirty years. Here we provide the first record of this species from the western Mediterranean Sea. Occurrences of ovigerous females at different localities of the delta and in different years provide evidence that the population is well established. Mitochondrial DNA confirms the identity of the species and indicates that the introduced population consists of at least three female lineages. The first zoeal stage of D. sayi was obtained in the laboratory from an ovigerous female captured in August 2010 with embryos in an advanced stage of development. The morphology of the zoea I is described here in detail and is similar to the one previously reported for native populations. 2025-10-22T11:27:41Z 2025-10-22T11:27:41Z 2025-10-22T11:27:41Z 2012-03 info:eu-repo/semantics/article Schubart, Christoph D., Guillermo Guerao, and Pere Abelló. 2012. “First Record and Evidence of an Established Population of the North American Mud Crab Dyspanopeus Sayi (Brachyura: Heterotremata: Panopeidae) in the Western Mediterranean.” Scientia Marina. 76 (1): 79–85. doi:10.3989/scimar.03361.16a. 0214-8358 http://hdl.handle.net/20.500.12327/2478 https://doi.org/10.3989/scimar.03361.16a eng Scientia Marina MICINN/Programa Nacional de Proyectos de Investigación Fundamental/CGL2009-12912-C03-03/ES/ / MICYT/ /HA2003-0078/ES/ / http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Attribution 4.0 International Consejo Superior de Investigaciones Científicas