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dc.contributor.author
Terossi, Mariana
dc.contributor.author
Lopez, Laura Susana
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dc.contributor.author
Mantelatto, Fernando L.
dc.date.available
2024-08-12T15:58:49Z
dc.date.issued
2008-01
dc.identifier.citation
Terossi, Mariana; Lopez, Laura Susana; Mantelatto, Fernando L.; Hippolyte obliquimanus (Decapoda: Caridea: Hippolytidae): a gonochoric or hermaphroditic shrimp species?; Springer; Marine Biology; 154; 1; 1-2008; 127-135
dc.identifier.issn
0025-3162
dc.identifier.uri
http://hdl.handle.net/11336/242296
dc.description.abstract
Several studies have reported the occurrence of hermaphroditism in caridean shrimp of the family Hippolytidae. Here we provide the first observations of population traits from the small Western Atlantic shrimp, Hippolyte obliquimanus, to determine its sexual system using descriptive and experimental approaches. Specimens were collected at two-month intervals from March 2005 through May 2006 in Ubatuba Bay on the northern coast of the state of São Paulo, Brazil. The sex of individuals was checked and morphometric dimensions (carapace length, maximum pleura of second abdominal segment width, appendix masculina length, maximum propodus width, and dactyl length of the third pereopod) were also analyzed. The gonads were dissected and examined for signs of abnormalities. The possibility of sex change was experimentally evaluated under laboratory conditions. A total of 674 specimens were collected: 211 males, 339 non-ovigerous females and 124 ovigerous females. The carapace length ranged from 0.55 to 3.20 mm, with females being significantly larger than males. Hippolyte obliquimanus showed sexual dimorphism in the third pereopod, absence of cincinnuli in the first pleopod, and no reduction of the appendix masculina in the largest males. All males examined had only testes, and all females had only ovaries. There was no sex change observed in the experiments. Together, these data indicate a population with females reaching larger sizes than males, males with a well-developed appendix masculina, and no transitional individuals. The results presented allow to characterize H. obliquimanus as a gonochoric species.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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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
HIPPOLYTE OBLIQUIMANUS
dc.subject
CARIDEA
dc.subject
GONOCHORIC
dc.subject
HERMAPHRODITE
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
Hippolyte obliquimanus (Decapoda: Caridea: Hippolytidae): a gonochoric or hermaphroditic shrimp species?
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-08-07T15:27:42Z
dc.journal.volume
154
dc.journal.number
1
dc.journal.pagination
127-135
dc.journal.pais
Alemania
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dc.description.fil
Fil: Terossi, Mariana. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Lopez, Laura Susana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Mantelatto, Fernando L.. Universidade de Sao Paulo; Brasil
dc.journal.title
Marine Biology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s00227-008-0907-1
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00227-008-0907-1
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