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Swimming performance of the migratory Neotropical fish Leporinus reinhardti (Characiformes: Anostomidae) Neotropical Ichthyology
Santos,Hersília de Andrade e; Pompeu,Paulo dos Santos; Martinez,Carlos Barreira.
The fishways built in Latin America were mainly based on those used in the northern hemisphere for passing salmonids upstream. However, the swimming capacity in terms of speed and endurance is a major factor concerning the design of a fishway, and this information is not available for migratory neotropical fish species. Therefore, studies on swimming performance of neotropical species is fundamental. The aim of this study was to estimate the critical, sustained and prolonged speeds for the piau-três-pintas Leporinus reinhardti, and to evaluate the influence of water temperature on the swimming performance of the species. Variable (increasing) and fixed velocity tests were performed in a respirometer. When compared to other species whose critical speed data...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Prolonged speed; Critical speed; Sustained speed; Fishway.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000200007
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Swimming performance of the small characin Bryconamericus stramineus (Characiformes: Characidae) Rev. Bras. Zool.
Castro,Miriam A. de; Santos,Hersília de A.; Sampaio,Francisco A. C.; Pompeu,Paulo S..
Very little research has been conducted on the swimming capacity of Neotropical fish. The few studies available have focused on large migratory species. The present study used fixed and increasing velocity tests to determine prolonged and sustained speeds of the "pequira", Bryconamericus stramineus Eigenmann, 1908, a small, abundant species found in fish passages implemented at the Paraná basin, Brazil. The results of increasing velocity tests showed significant relationships between critical speeds, total and standard lengths, and body weight. When compared with other Neotropical fish, the "pequira" is able to swim faster than individuals of other species of similar length. The point of change from sustained to prolonged swimming was found to occur at an...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Critical speed; Fish passage; Prolonged swimming; Tetragonopterinae.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000600015
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