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dc.contributor.author
Gregati, Rafael A.
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dc.contributor.author
Fransozo, Vivian
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dc.contributor.author
Lopez, Laura Susana
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dc.contributor.author
Negreiros Fransozo, María Lucía
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dc.contributor.author
Bauer, Raymond
dc.date.available
2017-07-14T15:30:58Z
dc.date.issued
2014-07
dc.identifier.citation
Gregati, Rafael A.; Fransozo, Vivian; Lopez, Laura Susana; Negreiros Fransozo, María Lucía; Bauer, Raymond; Functional morphology of the reproductive system and sperm transfer in Stenopus hispidus (Crustacea: Decapoda: Stenopodidea), and their relation to the mating system; Wiley; Invertebrate Biology; 133; 4; 7-2014; 381-393
dc.identifier.issn
1077-8306
dc.identifier.uri
http://hdl.handle.net/11336/20526
dc.description.abstract
The morphology of the reproductive system of a stenopodidean decapod is described here for the first time, with an interpretation of the sperm transfer process. Pairs of adults of Stenopus hispidus were maintained under laboratory conditions to observe reproductive cycles. Mating behavior and sperm transfer were video-recorded for analysis. After copulation, the shrimps were anesthetized and dissected to record the shape and location of the gonads, and pleopod morphology was described and illustrated. The reproductive systems (RS), thoracic sterna, and male and female genitalia were observed by scanning electron microscopy. The male reproductive system was restricted to the cephalothorax and was highly reduced compared with that of other decapods. Only the first pair of pleopods may be involved in the sperm transfer process; there was no appendix masculina on the second pair of pleopods as in many other decapods. The ovaries of prespawning females occupied much of the cephalothorax and reached to the 3rd abdominal segment. The oviducts were short and simple, without structures for sperm storage. We conclude that the male deposits a simple spermatophoric mass onto the posteroventral surface of the female and fertilization occurs externally as mature oocytes are subsequently spawned. This mode of sperm transfer and egg fertilization is ancestral within the decapod suborder Pleocyemata. As in some other animals, the relatively small size of the testes in S. hispidus may be related to the monogamous mating system, which may minimize selection for a large volume of sperm production.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Reproductive Morphology
dc.subject
Stenopodidean
dc.subject
Shrimp
dc.subject
Sperm Transfer
dc.subject.classification
Zoología, Ornitología, Entomología, Etología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Functional morphology of the reproductive system and sperm transfer in Stenopus hispidus (Crustacea: Decapoda: Stenopodidea), and their relation to the mating system
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-07-04T15:32:08Z
dc.journal.volume
133
dc.journal.number
4
dc.journal.pagination
381-393
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Hoboken
dc.description.fil
Fil: Gregati, Rafael A.. Universidade Estadual do Centro-Oeste; Brasil
dc.description.fil
Fil: Fransozo, Vivian. Universidade Estadual do Sudoeste da Bahia; Brasil
dc.description.fil
Fil: Lopez, Laura Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina
dc.description.fil
Fil: Negreiros Fransozo, María Lucía. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
dc.description.fil
Fil: Bauer, Raymond. University of Louisiana; Estados Unidos
dc.journal.title
Invertebrate Biology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/ivb.12067
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/ivb.12067/abstract
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