Variation in urea excretion in the gulf toadfishOpsanus beta
β Scribed by P. J. Walsh; E. Danulat; T. P. Mommsen
- Publisher
- Springer-Verlag
- Year
- 1990
- Tongue
- English
- Weight
- 606 KB
- Volume
- 106
- Category
- Article
- ISSN
- 0025-3162
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The permeability of toadfish gills and skin to urea and water has been measured in order to investigate the mechanisms behind the pulsatile excretion of urea previously described in this species. A perfused gill preparation was used in the gill studies and isolated pieces of skin mounted in an Ussin
Renal excretion of urea was assessed in adult and larval Ambystoma tigrinurn by comparing simultaneous clearances of urea and inulin. The mean adult urea clearance ratio (Cu/C,,) was 0.70 2 0.08 indicating net urea absorption. Larvae yielded a mean CV/CI, of 0.92 2 0.04. Individual larvae were quite
## Abstract Hibernation was induced in Columbian ground squirrels by placing them in refrigerated cages equipped with urineβcollection pans. On arousal, urine and blood were collected from each animal, which was then allowed to reenter hibernation. After several days the animal was sacrificed and b
The seal shows interesting physiological adaptations to its environment and diving habits. To the renal physiologist the circulatory changes that take place during diving and the changes in renal function accompanying feeding have been of particular interest. It was shown by Hiatt and Hiatt ( '42)