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Molt and reproduction of the European green crab Carcinus maenas (Decapoda: Portunidae) in Patagonia, Argentina

dc.creatorVinuesa, Julio H.
dc.date2005-10-14
dc.date.accessioned2016-05-03T15:26:49Z
dc.date.available2016-05-03T15:26:49Z
dc.identifierhttp://revistas.ucr.ac.cr/index.php/rbt/article/view/5805
dc.identifier10.15517/rbt.v55i0.5805
dc.identifier.urihttp://hdl.handle.net/10669/26002
dc.descriptionThe green crab Carcinus maenas, a decapod crustacean native to the northeastern Atlantic, has been invading distant areas, mainly for the last 25 years. This species is currently distributed along the coasts of the northeastern Pacific, South Africa, Japan, South Australia, Tasmania, and western and eastern North America, among others. Here we provide information on the biology of the green crab occurring in the central area of San Jorge Gulf, Argentina, where it has been established since 1999-2000. Crabs of both sexes were hand-collected between January 2004 and May 2005 from the intertidal zone and the upper sublittoral fringe. Sex, carapace width and molting stage were recorded. The reproductive status of males was based on the presence of sperm and spermatophores in testes and deferent ducts, and that of females on ovarian development and presence-absence of eggs. Stages of embryonic development for ovigerous females were also recorded. The most important physiological events taking place during the annual cycle of the adult population were as follows: (1) male molt occurred mainly in November and female molt between January and the beginning of March; (2) the reproductive season started in January, after a courtship in which the male, larger in size, holds the female until the molt, and spermatophores are ejaculated once the old exoskeleton is cast off; (3) females left the intertidal zone early and moved to lower littoral levels during fall and winter; (4) larvae appeared in September.en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherUniversidad de Costa Ricaen-US
dc.rightsCopyright (c) 2014 International Journal of Tropical Biology and Conservationen-US
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 55 (Suplemento 1) 2007en-US
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 55 (Suplemento 1) 2007es-ES
dc.sourceRevista Biología Tropical; Vol. 55 (Suplemento 1) 2007pt-PT
dc.source2215-2075
dc.source0034-7744
dc.source10.15517/rbt.v55i0
dc.titleMolt and reproduction of the European green crab Carcinus maenas (Decapoda: Portunidae) in Patagonia, Argentinaen-US
dc.titleMolt and reproduction of the European green crab Carcinus maenas (Decapoda: Portunidae) in Patagonia, Argentinaes-ES
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.coverageCRCen-US


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