Actinopterygii
Mostrando 1-12 de 92 artigos, teses e dissertações.
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1. Ecologia da comunidade dos metazoários parasitos da sardinha bandeira Opisthonema oglinum (Lesueur, 1818) (Actinopterygii: Clupeidae) da Baía de Sepetiba, Rio de Janeiro, Brasil
Resumo Este estudo teve como objetivo avaliar a fauna parasitária de Opisthonema oglinum (Lesueur, 1818) do Sudeste do Brasil. No período entre setembro de 2017 e março de 2018, um total de 100 espécimes de O. oglinum provenientes da Baía de Sepetiba, Rio de Janeiro, Brasil (22°54’S; 43°34’O), foram examinados. Noventa espécimes de O. oglinum est
Braz. J. Biol.. Publicado em: 2021-05
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2. [Septicemia móvel por aeromonada (SMA) em Cyprinus carpio L., 1758 (Actinopterygii: Cyprinidae) no lago Tödürge (Sivas, Turquia)]
RESUMO Neste estudo, foram identificadas lesões morfológicas e anatômicas causadas por septicemia móvel por aeromônios (MPA), dependendo do estresse ambiental da carpa, a população de Cyprinus carpio que vive no lago Tödürge foi identificada. Várias deformações e lesões morfológicas e anatômicas foram observadas no corpo de aproximadamente 17%
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2021-03
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3. First record of dorsal and anal fin deformities in blue tang Acanthurus coeruleus (Acanthuridae, Actinopterygii) from northeastern Brazil
Abstract: Dorsal and anal fin deformities in the blue tang Acanthurus coeruleus are reported for the first time from northeastern Brazil, based on observations during research dives at an artificial reef. Possible causative factors are discussed.
An. Acad. Bras. Ciênc.. Publicado em: 28/11/2019
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4. Morphological study of the gastrointestinal tract of the snow trout, Schizothorax esocinus (Actinopterygii: Cypriniformes)
ABSTRACT The present study aimed to investigate the macroscopic structure of the gastrointestinal tract (GIT) of Schizothorax esocinus Heckel, 1838. The surface architecture of the buccopharynx, oesophagus and the entire intestinal tract of S. esocinus has been examined under scanning electron microscope (SEM) after fixing in 2.5% glutaraldehyde buffered wit
Zoologia (Curitiba). Publicado em: 25/11/2019
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5. Eustrongylides sp. (Nematoda, Dioctophymatoidea) parasitizing Hoplias malabaricus (Actinopterygii: Erythrinidae) collected from the state of Rio de Janeiro, Brazil
Resumo Hoplias malabaricus (Characiformes, Erythrinidae), traíra, é um peixe neotropical de água doce que tem significante impacto na economia e saúde pública. De abril de 2016 a abril de 2018, foram adquiridos 45 espécimes de H. malabaricus comercializados no município de Magé, Estado do Rio de Janeiro, Brasil. Os peixes foram necropsiados e filetad
Rev. Bras. Parasitol. Vet.. Publicado em: 25/11/2019
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6. Composition and distribution of Serranidae (Actinopterygii:Perciformes) larvae in the Southeastern Brazilian Bight
ABSTRACT This study describes the taxonomic composition and horizontal distribution of Serranidae larvae along the Southeastern Brazilian Bight (SBB, approximately 22°S and 28°S), and investigates how environmental and biological factors influence the larval distribution. Ichthyoplankton samples were collected in 10 oceanographic cruises conducted from 197
Braz. j. oceanogr.. Publicado em: 22/07/2019
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7. Diet, sexual dimorphism and reproduction of sympatric racers Philodryas aestiva and Philodryas patagoniensis from the coastal Brazilian Pampa
Abstract: Herein we investigated diet, sexual dimorphism and reproductive biology of two sympatric congeneric species at the coastal Brazilian Pampa, Philodryas aestiva and P. patagoniensis. Analysis of the stomach content of the scansorial Philodryas aestiva revealed that it feeds mainly on Anura and small mammals, while it occasionally consumes Insecta, Sq
An. Acad. Bras. Ciênc.. Publicado em: 08/04/2019
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8. Checklist of marine demersal fishes captured by the pair trawl fisheries in Southern (RJ-SC) Brazil
Resumo: Nas costas tropicais e subtropicais, sobre as plataformas continentais, os recursos pesqueiros demersais são abundantes e considerados uma parcela importante do ambiente marinho. Os recursos pesqueiros demersais marinhos são capturados por diversas modalidades de pesca, muitas vezes de forma insustentável, o que vem provocando o esgotamento de seu
Biota Neotrop.. Publicado em: 21/01/2019
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9. A review of the systematic biology of fossil and living bony-tongue fishes, Osteoglossomorpha (Actinopterygii: Teleostei)
RESUMO Os peixes da Superordem Osteoglossomorpha têm sido foco de inúmeros estudos sobre a morfologia, sistemática e evolução, particularmente devido à sua posição basal dentre os peixes teleósteos. Fazem parte deste grupo os “mooneyes” (Hiodontidae), “knifefishes” (Notopteridae), o “abu” (Gymnarchidae), peixes-elefante (Mormyridae), aru
Neotrop. ichthyol.. Publicado em: 11/10/2018
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10. The feeding habits of the endemic Remo flounder, Oncopterus darwinii (Actinopterygii: Pleuronectidae), in an exposed sandy beach’s surf zone in southern Brazil
ABSTRACT The Remo flounder, Oncopterus darwinii Steindachner, 1874 is a small Pleuronectidae (~ 250 mm TL) distributed in the warm-temperate zone from Santa Catarina (28°S - Brazil) to the Gulf of San Matías (42°S - Argentina). We studied the occurrence and diet of juveniles of this flatfish (85% < 100 mm TL) for one year (August 2009 to July 2010) in a s
Zoologia (Curitiba). Publicado em: 23/07/2018
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11. Composition of gastrointestinal content, protease and lipase activities in summer and winter of four freshwater siluriforms (Teleostei: Actinopterygii) with two different feeding habits
ABSTRACT The aim of this study was to determine the composition of gastrointestinal content and protease and lipase activities in summer and winter as well as to evaluate the relationship between digestive enzyme activity and centesimal composition of gastrointestinal content and feeding habits of two omnivorous species, Rhamdia quelen (Quoy & Gaimard, 1824)
Zoologia (Curitiba). Publicado em: 18/06/2018
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12. Occurrence of phoresy between Ancistrus multispinis (Actinopterygii: Siluriformes) and Ichthyocladius sp. (Diptera: Chironomidae) in Atlantic forest streams, Southeastern Brazil
ABSTRACT Phoretic relationships often bring large advantages to epibionts. By attaching themselves to mobile hosts, epibionts are able to: expand their ranges without spending energy, reduce their risk of being predated, and increase their probability of finding food. We assessed the phoretic relationship between the siluriform fish Ancistrus multispinis (Re
Zoologia (Curitiba). Publicado em: 28/05/2018