História natural das raias de água doce (Chondrichthyes: Potamotrygonidae) na Ilha de Marajó (Pará- Brasil)
The present study was on the natural history of freshwater stingrays species (Potamotrygonidae) of the Marajó Island. It was carried out in four sampling points (Afuá, Lago Arari, Muaná and Soure) in dry, rainy and transition seasons, in 2005 throughout 2007. Five species were captured in this are...
| Autor principal: | ALMEIDA, Mauricio Pinto de |
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| Grau: | Tese |
| Idioma: | por |
| Publicado em: |
Universidade Federal do Pará
2013
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.ufpa.br/jspui/handle/2011/3424 |
| Resumo: |
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The present study was on the natural history of freshwater stingrays species (Potamotrygonidae) of the Marajó Island. It was carried out in four sampling points (Afuá,
Lago Arari, Muaná and Soure) in dry, rainy and transition seasons, in 2005 throughout
2007. Five species were captured in this area, Plesiotrygon iwamae, Paratrygon aiereba,
Potamotrygon motoro, Potamotrygon orbignyi and Potamotrygon scobina and two other
new species, presently in description. Data on the Potamotrygonidae family composition
and distribution were obtained, such as frequency of occurrence, biomass and fishery gear
selectivity. Data on the reproduction and feeding of the species were described for this
region, with emphasis on Potamotrygon motoro. |