Fishes
Mostrando 37-48 de 638 artigos, teses e dissertações.
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37. Anoxia stress and effect on flesh quality and gene expression of tilapia
Abstract We evaluated the effect of the length of stay out of water on stress, gene expression, pH variation, blood parameters, histological analysis and water holding capacity (WHC) in fillets of the Nile tilapia (Oreochromis niloticus) cultivated in net-tanks. For this purpose, the fishes were maintained out of water under different periods of anoxia. Thr
Food Sci. Technol. Publicado em: 14/11/2018
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38. Review of the family Rivulidae (Cyprinodontiformes, Aplocheiloidei) and a molecular and morphological phylogeny of the annual fish genus Austrolebias Costa 1998
ABSTRACT The family Rivulidae is the fourth most diverse clade of Neotropical fishes. Together with some genera of the related African family Nothobranchiidae, many rivulids exhibit a characteristic annual life cycle, with diapausing eggs and delayed embryonic development, which allows them to survive in the challenging seasonal ponds that they inhabit. Rivu
Neotrop. ichthyol.. Publicado em: 18/10/2018
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39. Phylogenetic relationships of the family Tarumaniidae (Characiformes) based on nuclear and mitochondrial data
ABSTRACT Characiformes is an order of freshwater fishes that includes many commercially important and emblematic species from South America and Africa, such as the popular piranhas, hatchetfishes, African tiger fishes and tetras. The order is split into two suborders with a total of 24 families, 282 genera and ca. 2,100 species. Here, we present an expanded
Neotrop. ichthyol.. Publicado em: 11/10/2018
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40. 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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41. A history of the biogeography of Amazonian fishes
RESUMO A história do conhecimento da biogeografia amazônica é tão rica quanto sua comunidade de peixes e um tema fascinante de estudo em si. Vários paradigmas e controvérsias atuais sobre a biogeografia de peixes amazônicos estão enraizados em princípios que datam da segunda metade do século 18 até a primeira metade do século 19. O presente traba
Neotrop. ichthyol.. Publicado em: 11/10/2018
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42. First record of the invasive tapeworm, Schyzocotyle acheilognathi (Pseudophyllidea; Bothriocephalidae) in native freshwater fish, Brazil
ABSTRACT Schyzocotyle acheilognathi is a tapeworm cestode commonly found in native freshwater fishes from Asia. This cestode has low host specificity and for that reason it has been registered parasitizing more than 200 cultured and wild fish species, besides amphibians, reptiles and birds from different regions of the world. With a high pathogenic potential
An. Acad. Bras. Ciênc.. Publicado em: 25/06/2018
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43. Escapes of non-native fish from flooded aquaculture facilities: the case of Paranapanema River, southern Brazil
ABSTRACT Non-native species are a major driver of biodiversity loss. Aquaculture activities play a key role in introductions, including the escape of fishes from fish farm facilities. Here, the impact of flooding due to El Niño rains in 2015/2016 in the Lower and Middle Paranapanema River basin, southern Brazil, was investigated by evaluating fish escapes f
Zoologia (Curitiba). Publicado em: 18/06/2018
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44. Pterobothrium crassicolle parasitizing Paralichthys orbignyanus (Osteichthyes, Paralichthyidae) in Brazil
ABSTRACT From September 2014 to November 2015, 30 Paralichthys orbignyanus specimens were obtained from Sepetiba Bay in the municipality of Rio de Janeiro, State of Rio de Janeiro, Brazil. The fishes were necropsied and cestode larvae were recovered from the abdominal cavity, mesentery, and serosas of the stomach, intestine, spleen, liver, kidney and gonads.
An. Acad. Bras. Ciênc.. Publicado em: 14/05/2018
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45. Differential survivorship of congeneric ornamental fishes under forecasted climate changes are related to anaerobic potential
Abstract Two Amazonian closely related tetras – cardinal Paracheirodon axelrodi and green neon P. simulans – were artificially acclimatized to environmental chambers mimicking future climate change scenarios (mild, moderate and extreme), using a microcosm facility. P. simulans survived (100%) to all scenarios after 30 days exposure, while P. axelrodi pre
Genet. Mol. Biol.. Publicado em: 19/02/2018
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46. Evaluation of the Concentration of Cu, Zn, Pb and Cr in Different Fish Species from the São Gonçalo Channel in Pelotas-RS, Brazil
The objective of this study was to evaluate the concentration of Cu, Zn, Cr and Pb in different species of fish collected in the estuarine and limnic regions of the São Gonçalo channel, located in the Patos-Mirim lagoon complex in the coastal plain of Rio Grande do Sul State (Southern Brazil) during 2013 (autumn, winter and spring) and 2014 (summer). Fish
J. Braz. Chem. Soc.. Publicado em: 2018-02
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47. New plant fossils from the Lower Cretaceous of the Parnaíba Basin, Northeastern Brazil: Southern Laurasia links
ABSTRACT: This study reports on the presence of a diverse set of gymnosperm and angiosperm macrofossils from the Codó Formation, Parnaíba Basin, whose assemblage was previously known only by the occurrence of pollen grains, spores, wood fragments, leaves and roots associated with Nympheaceae. In the Brejo municipality, northeastern Maranhão State, marl le
Braz. J. Geol.. Publicado em: 2018-01
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48. Molecular evolution and functional divergence of alcohol dehydrogenases in animals, fungi and plants
Abstract Alcohol dehydrogenases belong to the large superfamily of medium-chain dehydrogenases/reductases, which occur throughout the biological world and are involved with many important metabolic routes. We considered the phylogeny of 190 ADH sequences of animals, fungi, and plants. Non-class III Caenorhabditis elegans ADHs were seen closely related to tet
Genet. Mol. Biol.. Publicado em: 2018