Results 101 to 110 of about 191 (121)
Comparative Biochemistry and Physiology Part A: Molecular & Integrative PhysiologyAlbanesi Camila +3 more
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Science of The Total Environment, 2010
Accidental discharges and oil spills are frequent around the world. Petroleum-derived hydrocarbons are considered one of the main pollutants of aquatic ecosystem. The importance of petroleum and refined fuels is notorious because today's society depends on them.
Ricardo Vieira, Rodrigues +5 more
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Accidental discharges and oil spills are frequent around the world. Petroleum-derived hydrocarbons are considered one of the main pollutants of aquatic ecosystem. The importance of petroleum and refined fuels is notorious because today's society depends on them.
Ricardo Vieira, Rodrigues +5 more
openaire +2 more sources
Environmental Biology of Fishes, 1996
The present study investigated the effects of water temperature (18, 21, and 25 °C) on the histological process of gonadal sex differentiation of two commercially important atherinid fishes from South America, Odontesthes argentinensis (sea pejerrey) and Patagonina hatcheri (Patagonian freshwater pejerrey).
Carlos A. Strüssmann +4 more
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The present study investigated the effects of water temperature (18, 21, and 25 °C) on the histological process of gonadal sex differentiation of two commercially important atherinid fishes from South America, Odontesthes argentinensis (sea pejerrey) and Patagonina hatcheri (Patagonian freshwater pejerrey).
Carlos A. Strüssmann +4 more
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Tissue and Cell, 2009
Odontesthes argentinensis was collected from Mar Chiquita Coastal Lagoon, the Southernmost coastal Atlantic Lagoon of Argentina. The morphology of the gills was analyzed by scanning electron microscopy. The morphology of the superficial structures of the gill filaments and pharyngeal region of the gill arch was discussed and related to their functional
Alcira O, Díaz +4 more
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Odontesthes argentinensis was collected from Mar Chiquita Coastal Lagoon, the Southernmost coastal Atlantic Lagoon of Argentina. The morphology of the gills was analyzed by scanning electron microscopy. The morphology of the superficial structures of the gill filaments and pharyngeal region of the gill arch was discussed and related to their functional
Alcira O, Díaz +4 more
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Molecular Ecology, 2001
AbstractThe idengification of incipient ecological species represents an opportunity to investigate current evolutionary process where adaptive divergence and reproductive isolation are associated. In this study we analysed the genetic structure of marine and estuarine populations of the silverside fishOdontesthes argentinensisusing nine microsatellite
Beheregaray, L. B. +1 more
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AbstractThe idengification of incipient ecological species represents an opportunity to investigate current evolutionary process where adaptive divergence and reproductive isolation are associated. In this study we analysed the genetic structure of marine and estuarine populations of the silverside fishOdontesthes argentinensisusing nine microsatellite
Beheregaray, L. B. +1 more
openaire +2 more sources
Copeia, 2000
Abstract Allozyme electrophoresis was used to investigate genetic population structure among 245 individuals of the silverside Odontesthes argentinensis sampled from localities in southern Brazil and Uruguay. Striking differences in allozyme frequencies and genetic variability were detected among localities.
Luciano B. Beheregaray, José A. Levy
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Abstract Allozyme electrophoresis was used to investigate genetic population structure among 245 individuals of the silverside Odontesthes argentinensis sampled from localities in southern Brazil and Uruguay. Striking differences in allozyme frequencies and genetic variability were detected among localities.
Luciano B. Beheregaray, José A. Levy
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Molecular Ecology, 2000
Odontesthes (Atheriniformes: Atherinopsidae) is a diverse and widespread genus of silverside fish, containing between 15 and 22 recognized species distributed across marine, estuarine and freshwater environments of temperate South America (Dyer 1993). The marine-estuarine O.
L B, Beheregaray, P, Sunnucks
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Odontesthes (Atheriniformes: Atherinopsidae) is a diverse and widespread genus of silverside fish, containing between 15 and 22 recognized species distributed across marine, estuarine and freshwater environments of temperate South America (Dyer 1993). The marine-estuarine O.
L B, Beheregaray, P, Sunnucks
openaire +2 more sources