|SREL Reprint #0489|
Tolerance and Respiratory Movement of Bluegill from Two Populations Tested at
Different Levels of Acclimation Temperatures and Water Hardness
C. Murphy, Charles T. Garten, Jr., Michael H. Smith, and Edward A. Standora
Bluegill (Lepomis macrochirus) from
two locations were acclimated at 16, 24, and 32°C and at two levels of
water hardness (conductivity 77 and 110 mmho).
Fish from a reservoir receiving thermal effluent had a higher critical
thermal maximum (CTM) and lower rates of respiratory movement at each
acclimation temperature than those from the control locations.
Respiratory movement and CTM increased as a function of acclimation
temperatures. Increased water
hardness tended to decrease the CTM but had no consistent effect on respiratory
SREL Reprint #0489
Murphy, J.C., C.T. Garten Jr., M.H. Smith, and E.A. Standora. 1976. Thermal tolerance and respiratory movement of bluegill from two populations tested at different levels of acclimation temperature and water hardness. p. 145-147. In Thermal Ecology II, edited by G.W. Esch and R.W. McFarlane. CONF 750425. ERDA Symposium Series.