Elasmobranch
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. Morphological description of ovary and uterus of the nurse shark (Ginglymostoma cirratum) caught off at the Fortaleza coast, Northeast Brazil
RESUMO: O tubarão-lixa, Ginglymostoma cirratum (Bonnaterre, 1778) é uma das espécies mais estudadas de elasmobrânquios. O conhecimento de sua biologia reprodutiva, no entanto, ainda é relativamente raro, particularmente no Oeste do Atlântico Sul. Este estudo objetivou a descrição morfológica do útero e ovário de G. cirratum, baseado em espécimes
Pesq. Vet. Bras.. Publicado em: 10/01/2020
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2. Reproductive biology of the Brazilian blind electric ray Benthobatis kreffti (Chondrichthyes: Narcinidae)
RESUMO Este estudo apresenta informações sobre a biologia reprodutiva da raia elétrica cega brasileira Benthobatis kreffti, endêmica do sul e sudeste brasileiros. Os indivíduos foram capturados com arrasto de fundo, em 2003 e 2007, a 492-501 m de profundidade no talude continental do Estado de São Paulo. Um total de 152 fêmeas (115-299 mm) e 144 macho
Neotrop. ichthyol.. Publicado em: 25/04/2019
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3. Feeding ecology of elasmobranch species in southeastern Brazil
RESUMO Devido à lacuna de conhecimento sobre os elasmobrânquios estudamos a ecologia alimentar de cinco espécies desse grupo, no litoral sul do Rio de Janeiro. Os exemplares foram capturados por rede de arrasto e espinhel de fundo, entre janeiro de 2006 e agosto de 2007. As dietas de Psammobatis rutrum e Psammobatis extenta se mostraram basicamente carcin
Neotrop. ichthyol.. Publicado em: 03/07/2017
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4. Zoogeography of Elasmobranchs in the Colombian Pacific Ocean and Caribbean Sea
ABSTRACT In order to investigate zoogeographical patterns of the marine elasmobranch species of Colombia, species richness of the Pacific and Caribbean and their subareas (Coastal Pacific, Oceanic Pacific, Coastal Caribbean, Oceanic Caribbean) was analyzed. The areas shared 10 families, 10 genera and 16 species of sharks, and eight families, three genera and
Neotrop. ichthyol.. Publicado em: 07/07/2016
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5. Habito alimentar do tubarão-azul (Prionace glauca) da costa do Brasil
Estômagos de 222 tubarões-azuis coletados ao longo da costa brasileira foram analisados, sendo 116 da região nordeste e 106 da região sul. Um total de 51 táxons de presas foram identificados. Os itens mais importantes na região sul foram baleias Mysticeti, teleósteos, o peixe gempilídeo Ruvettus pretiosus e o nomeídeo Arioma bondi. Cefalópodes fora
Biota Neotropica. Publicado em: 2009-09
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6. OrganizaÃÃo social de elasmobrÃnquios na Reserva BiolÃgica do Atol das Rocas, Brasil
Many animals tend to form social groups, segregating individuals from different classes, such as males and females, adults and subadults, and even large and small specimens of the same species. In order to better understand the behavior of elasmobranches in an insular environment, the social organization of the nurse shark, Ginglymostoma cirratum, (Bonnaterr
Publicado em: 2009
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7. Discrimination of Shark species by simple PCR of 5S rDNA repeats
Sharks are suffering from intensive exploitation by worldwide fisheries leading to a severe decline in several populations in the last decades. The lack of biological data on a species-specific basis, associated with a k-strategist life history make it difficult to correctly manage and conserve these animals. The aim of the present study was to develop a DNA
Genetics and Molecular Biology. Publicado em: 2008
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8. A DISTRIBUIÇÃO ESPACIAL E A COMPOSIÇÃO DAS CAPTURAS DE ELASMOBRÂNQUIOS PELA FROTA DE EMALHE DE PASSO DE TORRES - SC, NA COSTA SUL DO BRASIL, NO VERÃO DE 2004/2005.
The elasmobranch fishes are exploited by many fisheries gears in Rio Grande do Sul state. The purposes of this study were to describe the inshore fishery of Passo de Torres (SC), south frontier with Rio Grande do Sul state, to assess the elasmobranchs catches and its composition, and to deliniate their spatial distribution in south continental shelf. Thirty-
Publicado em: 2006
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9. Taxonomic reports of Otobothrioidea (Eucestoda, Trypanorhyncha) from elasmobranch fishes of the southern coast off Brazil
Specimens of elasmobranch fishes, captured in the states of Paraná and Santa Catarina, of the southern coast off Brazil, represented by three families, four genera, and four species, were parasitized with otobothrioid trypanorhynch cestodes: Heptranchias perlo (Bonnaterre, 1788), Squalus sp. and Carcharhinus signatus (Poey, 1868) were parasitized with Progr
Memórias do Instituto Oswaldo Cruz. Publicado em: 2004-02
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10. Digenea and acanthocephala of elasmobranch fishes from the southern coast of Brazil
New records for helminth species recovered from elasmobranch fishes in Brazil are established. Digenean and acanthocephalan parasites of elasmobranch fishes are reported from the southern coast of Brazil: Otodistomum veliporum (Creplin, 1837) Stafford, 1904 (Digenea: Azygiidae) in the stomach and spiral valve of Dipturus trachydermus and in the spiral valve
Memórias do Instituto Oswaldo Cruz. Publicado em: 2001-11
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11. Potencial atrator de tubarões costeiros em recife artificial no litoral norte do estado do Rio de Janeiro, Brasil
Artificial reefs have been used in many countries to increase coastal fishery productivity. In order to increase fish attraction to the Northern Coast of Rio de Janeiro State, it was installed an artificial reef (1,500 m²) 5 nautical miles off Manguinhos's Bay (São Francisco de ltabapoana, Rio de Janeiro). The artificial structures were made of tires, conc
Revista Brasileira de Zoologia. Publicado em: 2001-09
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12. Nematodes of elasmobranch fishes from the southern coast of Brazil
New records for nematode species recovered from elasmobranch fishes in Brazil are established and new systematical arrangements proposed. Parascarophis sphyrnae Campana-Rouget, 1955 from the spiral valve of Sphyrna zygaena is referred for the first time in South America as a new host record. Procamallanus (S.) pereirai Annereaux, 1946, from the spiral valve
Memórias do Instituto Oswaldo Cruz. Publicado em: 2001-01