Hematological-Changes in An Antarctic Teleost, Trematomus-Bernacchii, Following Stress

• Published in: Polar Biology
• Main Authors: Davison, W, Franklin, CE, McKenzie, JC
• Format: Article in Journal/Newspaper
• Language: English
• Published: SPRINGER VERLAG 1994
• Subjects: Pagothenia-Borchgrevinki; Rainbow-Trout; Chaenocephalus-Aceratus; Oncorhynchus-Mykiss; Blood-Viscosity; Fish; Spleen; Responses; Recovery; Exercise; 1100 Agricultural and Biological Sciences; Antarctic; The Antarctic; Antarc*
• Online Access: https://espace.library.uq.edu.au/view/UQ:383442

The effect of an acute increase in temperature, exhaustive exercise and hypoxia on the haematology of the benthic Antarctic teleost, Trematomus bernacchii was investigated. High temperature and hypoxia caused the biggest changes to the blood, with increases in haematocrit, haemoglobin concentrations and plasma chloride levels. The spleen decreased in mass. Exercise produced the smallest changes. Changes were substantially less than reported for the more active cryopelagic species Pagothenia borchgrevinki. The magnitude of the haematocrit increase is discussed in relation to life-style of fish living in the Antarctic.