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Salinity-induced changes in gill Na, K-ATPase activity in the mud fiddler crab,Uca pugnax

✍ Scribed by Holliday, Charles W.

Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
850 KB
Volume
233
Category
Article
ISSN
0022-104X

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✦ Synopsis

Male mud fiddler crabs (Uca pugnax) were shown to hyperosmoregulate in 10% and 50% seawater (SW) and to hypoosmoregulate in 150% and 200% SW. Crabs fully immersed in the media did not osmoregulate as well as those that were free to enter or leave the medium at will ("natural" environment). Gill sodium-plus-potassium ATPase (Na,K-ATPase) enzyme specific activity was characterized in crude homogenates. After acclimation (21 days) in 10% SW, all six gill pairs in immersed crabs showed significantly

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