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| Tsuzuki,Mônica Yumi; Strüssmann,Carlos Augusto; Takashima,Fumio. |
| Starved larvae of the silversides O. hatcheri (2- and 5-days-old) and Odontesthes bonariensis (5-days-old) were used to compare the oxygen consumption rates at 0, 5, 10, 20 and 30 ppt salinity. Oxygen consumption of O. hatcheri and O. bonariensis was minimal at 0 and 10 ppt, respectively, salinities close to those encountered in areas inhabited by these fishes. In both species, oxygen consumption rates thereafter increased with increasing salinity, and then abruptly decreased at 30 ppt. Lower consumption at extreme salinities might be a result of reduced activity, which in itself was salinity-modulated. Differences in activity may explain the fact that oxygen consumption rates of 5-day-old larvae were higher than 2-day-old larvae, which still possess... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Salinity; Respiratory metabolism; Euryhaline fish; Silversides; Odontesthes hatcheri; Odonthesthes bonariensis. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000300017 |
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| Bical, C.; Lasserre, P.. |
| This study quantifies the influence of temperature on the respiratory activity of juvenile Dicentrarchus labrax L. The fry were less than one year old and were obtained from the breeding tanks at the C.O.B. (Centre Océanologique de Bretagne). Diminution in the oxygen concentration, during time, within sealed vessels was measured with a Clark oxygen electrode (Orbisphere Material modified). Initially the respiratory rate was determined, for acclimatized fishes, as a function of the decrease in the oxygen concentration of the milieu at different temperatures (8°, 10°, 15°, 20° and 25°C) and constant salinity 30 %o . The relationship between metabolism and weight, at these temperatures was then established for two different levels of activity "routine" and... |
| Tipo: Text |
Palavras-chave: Respiration; Adaptations métaboliques; Méthode confinement; Température; Bar Dicentrarchus Zabrax L.; Respiratory metabolism; Sealed vessel; Temperature; Sea bass Dicentrarchus Zabrax L.. |
| Ano: 1979 |
URL: http://archimer.ifremer.fr/doc/00306/41685/40894.pdf |
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