Are Atlantic and Indo-Pacific populations of the rafting crab, Plagusia depressa (Fabricius), distinct? New evidence from larval morphology and mtDNA

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Are Atlantic and Indo-Pacific populations of the rafting crab, Plagusia depressa (Fabricius), distinct? New evidence from larval morphology and mtDNA

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dc.contributor.author Schubart, C.D.
dc.contributor.author González-Gordillo, J.I
dc.contributor.author Reyns, N.B.
dc.contributor.author Liu, H.C.
dc.contributor.author Cuesta, J.A
dc.contributor.other Biología en_US
dc.date.accessioned 2017-09-14T10:47:29Z
dc.date.available 2017-09-14T10:47:29Z
dc.date.issued 2001-12
dc.identifier.issn 0217-2445
dc.identifier.uri http://hdl.handle.net/10498/19638
dc.description.abstract Crabs of the genus Plagusia Latreille, 1804 (Crustacea: Brachyura: Plagusiidae) are well known for their habit of clinging to driftwood or ship hulls and are therefore prone to trans-oceanic transport. One of the consequences of this large dispersal potential seems to be the circumtropical distribution of one species, Plagusia depressa (Fabricius, 1775). This species comprises two subspecies, the Atlantic P. d. depressa and the Indo-Pacific P. d. squamosa (Herbst, 1790) (=P. d. tuberculata Lamarck, 1818). There are only subtle differences in adult morphology between these subspecies. For further comparison of the Atlantic and Indo-Pacific populations, we describe the morphology of the first zoeal stage of P. d. squamosa and the megalopa of P. d. depressa and present sequence data of the mitochondrial 16S rRNA gene. The comparison of zoeae, megalopae and mtDNA all provide evidence that the two subspecies of Plagusia depressa are clearly distinct. We therefore propose that Plagusia squamosa deserves species status, that the adult morphology is conserved, and that the major continents represent barriers for dispersal of this rafting tropical crab. en_US
dc.format application/pdf en_US
dc.language.iso eng en_US
dc.rights info:eu-repo/semantics/openAccess
dc.source The Raffles Bulletin of Zoology, 49(2): 301-310. (2001) en_US
dc.subject Subspecies en_US
dc.subject Zoea en_US
dc.subject Megalopa en_US
dc.subject 16S rRNA en_US
dc.subject Brachyura en_US
dc.subject Plagusiidae en_US
dc.title Are Atlantic and Indo-Pacific populations of the rafting crab, Plagusia depressa (Fabricius), distinct? New evidence from larval morphology and mtDNA en_US
dc.type info:eu-repo/semantics/article en_US
dc.rights.accessRights info:eu-repo/semantics/openAccess en_US

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