spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by ANDREASEN, P.
Right arrow Search for Related Content
PubMed
Right arrow Articles by ANDREASEN, P.
Journal of Experimental Biology 118,111-120 (1985)
Published by Company of Biologists 1985

Free and Total Calcium Concentrations in the Blood of Rainbow Trout, Salmo Gairdneri, During ‘Stress’ Conditions

PETER ANDREASEN 1

1 Department of Zoophysiology, University of Aarhus DK-8000 Aarhus C, Denmark

Measurements were made of the free and total calcium concentrations ([Ca2+] and Cat), acid-base status, haemoglobin concentration, haematocrit and plasma protein concentration in the blood of the rainbow trout, Salmo gairdneri. In isolated blood, [Ca2+] was proportional to Cat while log[Ca2+] was inversely proportional to pH. Similar findings have been reported from human blood. During intense activity, [Ca2+] increased by 16% without any significant change in Cat. Neither sustained exercise, hypercapnic acidosis nor hypoxia affected [Ca2+] or Cat. These data indicate that during common natural stress conditions [Ca2+] is maintained within a narrow range.

Key words: Calcium, hypoxia, hypercapnia, exercise, acid-base, rainbow trout

Accepted on March 4, 1985






© The Company of Biologists Ltd 1985