2011
DOI: 10.1590/s1679-62252011005000039
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Abstract: The purpose of this study was to investigate Na , and Mg 2+ levels in the plasma of freshwater and marine/ estuarine teleosts collected at different salinities (0 to 34) from the estuarine and freshwater portions of the São Gonçalo channel in Southern Brazil. Any relationship between plasma ion levels and salinity and the capacity of ionic regulation of teleosts found at three or more different salinities (Genidens barbus and Micropogonias furnieri) was also investigated. Results showed no relationship between… Show more

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Cited by 7 publications
(3 citation statements)
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“…Our results showed no significant change in water content of fat snook muscle and gills or Na + and K + plasma levels between anesthetized fish and controls in the same salinity. Plasma ion levels of fat snook were within the expected range for tropical fish (Becker et al, 2011). SW-adapted fish showed a higher Na + plasma levels than FW-adapted ones, and this was expected because SW acclimation increased osmolality in Mozambique tilapia (Oreochromis mossambicus) (Fiess et al, 2007) and plasma level of Na + and Cl -in European flounder (Platichthys flesus) (Lundgreen et al, 2008), Micropogonias furnieri and Genidens barbus (Becker et al, 2011) compared to FW-adapted specimens.…”
Section: Eo-y (µL Lmentioning
confidence: 60%
“…Our results showed no significant change in water content of fat snook muscle and gills or Na + and K + plasma levels between anesthetized fish and controls in the same salinity. Plasma ion levels of fat snook were within the expected range for tropical fish (Becker et al, 2011). SW-adapted fish showed a higher Na + plasma levels than FW-adapted ones, and this was expected because SW acclimation increased osmolality in Mozambique tilapia (Oreochromis mossambicus) (Fiess et al, 2007) and plasma level of Na + and Cl -in European flounder (Platichthys flesus) (Lundgreen et al, 2008), Micropogonias furnieri and Genidens barbus (Becker et al, 2011) compared to FW-adapted specimens.…”
Section: Eo-y (µL Lmentioning
confidence: 60%
“…These euryhaline species are widespread along the marine− estuarine gradient of this region (Chao et al 1985, with most spawning in the sea and their juveniles particularly abundant in shallow waters (<1.5 m) of the estuary (Chao et al 1985, Becker et al 2011, where food is . The marine estuarine-dependent species studied are commonly found between the Patos Lagoon Estuary and adjacent marine areas probably because salinity differences between these systems does not constitute a physiological barrier to these euryhaline species.…”
Section: Spatial Versus Temporal Dimensionsmentioning
confidence: 99%
“…The seasonal variation in salinity is more important for primary marine or primary freshwater species than for estuarine species, because the latter display higher osmoregulatory efficiency and can better cope with this environmental variation (Becker et al 2011;Marshall 2012;Park et al 2020). Consequently, the abundance of estuarine fishes tends to be stable between seasons, while abundance of marine and freshwater fishes is higher in the season when salinity levels are lower (rainy season) or higher (dry season), respectively, as corroborated by our GAM results.…”
Section: Discussionmentioning
confidence: 99%