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Plasma Ion Concentrations in Selected Fishes from Four North Central Texas Reservoirs with Different Salinities

Mean salinity concentrations in the four reservoirs (Moss, Ray Hubbard, Texoma and Possum Kingdom) ranged from 0.2 ppt in Moss Lake to 2.01 ppt in Possum Kingdom Lake. Reservoir sodium and chloride concentrations were hypotonic to hypertonic to plasma levels in all species. Interspecific differences were seen in ionic concentrations within each reservoir. Total osmotic and sodium concentrations in carp, Cyprinus carpio, were correlated to their concentrations in the reservoirs. No such relationship was noted for chloride, potassium and calcium. A laboratory study indicated that fish collection by electroshock did not bias plasma ion concentrations. Exposures to wide variations in ionic concentrations did not appear to induce stress in the species studied.

Identiferoai:union.ndltd.org:unt.edu/info:ark/67531/metadc503827
Date12 1900
CreatorsDel Regno, Kenneth J. (Kenneth Joseph)
ContributorsBeitinger, Thomas L., Zimmerman, Earl G., Dickson, Kenneth L.
PublisherNorth Texas State University
Source SetsUniversity of North Texas
LanguageEnglish
Detected LanguageEnglish
TypeThesis or Dissertation
Formatviii, 101 leaves: ill., maps, Text
CoverageUnited States - Texas
RightsPublic, Del Regno, Kenneth J. (Kenneth Joseph), Copyright, Copyright is held by the author, unless otherwise noted. All rights reserved.

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