SHORT COMMUNICATION THE ROLE OF THE SPLEEN DURING EXERCISE IN THE ANTARCTIC TELEOST, PAGOTHENIA BORCHGREVINKI

• Main Authors: E. Franklin, William Davison, Jan, C. Mckenzie
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 1992
• Subjects: Key words; antarctic fish; exercise; haematocrit; spleen; erythrocytes; Pagothenia borchgrevinki; Antarctic; The Antarctic; Antarc*
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.606.1291; http://jeb.biologists.org/content/174/1/381.full.pdf

Physiological changes in fish associated with swimming are highly dependent on the intensity of exercise performed (Wood, 1991). Swimming at high speed requires large increases in the delivery of oxygen to the tissues and the circulatory system must be able to meet this demand. Exercise at a speed great enough to cause exhaustion results in an elevation in haematocrit (Hct), which can increase the oxygen content of the blood. The magnitude of the Hct increase varies among different species of fish, although generally the