Sediment bioturbation potential of uca rapax and uca uruguayensis as a result of their feeding activity

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorSayão-Aguiar, Bruno-
Autor(es): dc.creatorAmaro Pinheiro, Marcelo Antonio-
Autor(es): dc.creatorColpo, Karine Develati-
Data de aceite: dc.date.accessioned2025-08-21T19:49:56Z-
Data de disponibilização: dc.date.available2025-08-21T19:49:56Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2012-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1163/193724011X615451-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/226775-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/226775-
Descrição: dc.descriptionBioturbation of mangrove sediments by Uca uruguayensis (Nobili, 1901) and U. rapax (Smith, 1870) was compared based on the grain-size composition and organic content in surface sediment around the burrow and feeding pellets in two mangrove zones of the So Vicente Estuary, state of So Paulo, Brazil. For each species, 25 burrows with active crabs were selected. All pellets within a 15-cm radius of each burrow were carefully collected; samples of substrate were taken; and the crab occupant was excavated, sexed, and measured for carapace width (CW). The number of spoon-tipped setae on the second maxilliped of each species was estimated; U. uruguayensis showed more of these setae than U. rapax. For both species, the sediment post-processed by feeding activity (feeding pellets) showed a similar increase of coarser fractions and a smaller organic content. However, U. uruguayensis was more efficient in removing organic matter (88.1%) from the sediment than U. rapax (37.5%). These results suggest that different numbers of spoon-tipped setae on the second maxillipeds of the fiddler crabs do not affect the potential for grain-size selection, but result in differing abilities to remove organic matter from the sediment. © 2012 The Crustacean Society.-
Descrição: dc.descriptionUniversidade Estadual Paulista Campus Experimental Do Litoral Paulista (CLP) Research Group in Crustacean Biology (CRUSTA), Praça Infante Dom Henrique, s/n., Parque Bitaru, 11330-900, São Vicente (SP)-
Descrição: dc.descriptionUniversidade Estadual Paulista Campus Experimental Do Litoral Paulista (CLP) Research Group in Crustacean Biology (CRUSTA), Praça Infante Dom Henrique, s/n., Parque Bitaru, 11330-900, São Vicente (SP)-
Formato: dc.format223-229-
Idioma: dc.languageen-
Relação: dc.relationJournal of Crustacean Biology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectfeeding pellets-
Palavras-chave: dc.subjectmangrove-
Palavras-chave: dc.subjectsediment particle size-
Palavras-chave: dc.subjectspoon-tipped setae-
Palavras-chave: dc.subjectUca-
Título: dc.titleSediment bioturbation potential of uca rapax and uca uruguayensis as a result of their feeding activity-
Tipo de arquivo: dc.typelivro digital-
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