The stress response of an antarctic teleost to an acute increase in temperature

• Published in: Journal of Thermal Biology
• Main Authors: Franklin, CE, Davison, W, Carey, PW
• Format: Article in Journal/Newspaper
• Language: English
• Published: PERGAMON-ELSEVIER SCIENCE LTD 1991
• Subjects: Antarctic fish; haematocrit; plasma chloride; plasma osmolarity; Stress; 1100 Agricultural and Biological Sciences; 1314 Physiology; Antarctic; The Antarctic; Antarc*
• Online Access: https://espace.library.uq.edu.au/view/UQ:383468

1. 1.|Changes in haematocrit, plasma osmolarity and chloride concentrations were monitored in the Antarctic teleost, Pagothenia borchgrevinki before and after exposure to a 10°C rise in water temperature (0°-10°C) for 10 min. 2. 2.|All the parameters monitored were elevated after exposure to the 10°C sea water. Haematocrit exhibited the largest rise, increasing from 19.7-40.9%. 3. 3.|Despite haematocrit increasing by 100%, return to control levels occurred within 12 h. Plasma osmolarity and chloride concentrations took only 8 h to return to resting values.