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Abstract:

One of the most remarkable features of the reproductive systems of eubrachyuran crabs is the presence of specialized organs for sperm storage, the seminal receptacles. Descriptions of seminal receptacle morphology, sperm storage time, sperm retention across molts, and the capacity to store multiple ejaculates from different males can help in understanding crab mating strategies as well as in preventing negative effects of male-biased fisheries of heavily harvested species. Metacarcinus edwardsii is the most harvested crab in Chile, but its reproductive biology is largely unstudied. In this study, the morphology of the seminal receptacles of M. edwardsii is characterized from the macroscopic to the microscopic level, during key points in the reproductive cycle. The receptacles of experimentally mated and wild-caught females were included in this analysis. Metacarcinus edwardsii has ventral-type seminal receptacles that are able to retain sperm after molting, and even after extrusion of the eggs. Stratification of multiple ejaculates is clearly observed. In general, the pattern of sperm storage indicates that populations of this species, like those of other cancrid crabs, could have high resilience to the negative effects of the selective harvest of males, principally because females have a great sperm storage capacity. © 2013, The American Microscopical Society, Inc.

Registro:

Documento: Artículo
Título:Functional morphology of the seminal receptacle in the crab Metacarcinus edwardsii
Autor:Pardo, L.M.; Riveros, M.; Fuentes, J.P.; López-Greco, L.
Filiación:Facultad de Ciencias, Instituto de Ciencias Marinas y Limnológicas, Laboratorio Costero Calfuco, Universidad Austral de Chile, Valdivia, Chile
Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias, Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, C1428 EHA, Argentina
Instituto de Biodiversidad y Biología Experimental y Aplicada, CONICET-UBA, Buenos Aires, C1428 EHA, Argentina
Palabras clave:Cancridae; Ejaculate stratification; Reproduction; Sperm; Cancridae; Decapoda (Crustacea)
Año:2013
Volumen:132
Número:4
Página de inicio:386
Página de fin:393
DOI: http://dx.doi.org/10.1111/ivb.12038
Título revista:Invertebrate Biology
Título revista abreviado:Invertebr. Biol.
ISSN:10778306
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10778306_v132_n4_p386_Pardo

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Citas:

---------- APA ----------
Pardo, L.M., Riveros, M., Fuentes, J.P. & López-Greco, L. (2013) . Functional morphology of the seminal receptacle in the crab Metacarcinus edwardsii. Invertebrate Biology, 132(4), 386-393.
http://dx.doi.org/10.1111/ivb.12038
---------- CHICAGO ----------
Pardo, L.M., Riveros, M., Fuentes, J.P., López-Greco, L. "Functional morphology of the seminal receptacle in the crab Metacarcinus edwardsii" . Invertebrate Biology 132, no. 4 (2013) : 386-393.
http://dx.doi.org/10.1111/ivb.12038
---------- MLA ----------
Pardo, L.M., Riveros, M., Fuentes, J.P., López-Greco, L. "Functional morphology of the seminal receptacle in the crab Metacarcinus edwardsii" . Invertebrate Biology, vol. 132, no. 4, 2013, pp. 386-393.
http://dx.doi.org/10.1111/ivb.12038
---------- VANCOUVER ----------
Pardo, L.M., Riveros, M., Fuentes, J.P., López-Greco, L. Functional morphology of the seminal receptacle in the crab Metacarcinus edwardsii. Invertebr. Biol. 2013;132(4):386-393.
http://dx.doi.org/10.1111/ivb.12038