Freshwater to seawater acclimation of juvenile bull sharks (Carcharhinus leucas): plasma osmolytes and Na+/K+-ATPase activity in gill, rectal gland, kidney and intestine


This study examined the osmoregulatory status of the euryhaline elasmobranch Carcharhinus leucas acclimated to freshwater (FW) and seawater (SW). Juvenile C. leucas captured in FW (3 mOsm l−1 kg−1) were acclimated to SW (980–1,000 mOsm l−1 kg−1) over 16 days. A FW group was maintained in captivity over a similar time period. In FW, bull sharks were hyper… (More)
DOI: 10.1007/s00360-004-0460-2

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