Affordable Access

Publisher Website

Studies on water and ion movements in the isolated urinary bladder of selected fresh-water, marine and euryhaline teleosts

Authors
Journal
Comparative Biochemistry and Physiology Part A Physiology
0300-9629
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/0300-9629(73)90461-1
Disciplines
  • Ecology
  • Geography

Abstract

Abstract 1. 1. A reduction in osmotic permeability to water and an increase in sodium and chloride absorption were observed in the isolated urinary bladder of three species of flounders after their acclimation to hypotonic media and after prolactin treatment. 2. 2. Bladders of stenohaline fresh-water fishes were nearly impermeable to water; active absorption of sodium was indicated in some species. 3. 3. Osmotic permeability was variable in marine fishes, but was especially noticeable in aglomerular Porichthys and Lophius. 4. 4. Euryhaline fishes of sea-water origin modify their bladders from a permeable state in sea water to a relatively impermeable state in fresh water. Prolactin seems to be involved in this modification. Bladders from euryhaline fish of fresh-water origin appear impermeable, irrespective of environmental salinity.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

Studies on water and ion movements in the isolated...

on Comparative Biochemistry and P... Jun 01, 1973

Studies on the permeability to water of selected m...

on The Journal of experimental bi... June 1969

Water and ion movements across the gas bladder of...

on Comparative biochemistry and p... June 1968

Sodium-potassium-activated adenosinetriphosphatase...

on Comparative biochemistry and p... Nov 15, 1969
More articles like this..