THE EFFECT OF REARING CONDITIONS ON SUSCEPTIBILITY OF COMMON CARP TO EXPERIMENTAL MANIPULATION STRESS

摘要

Manipulation related to management or experiments may be a source of stress for fish, and thus may alter many physiological parameters, affecting rearing success or research results. Under experimental conditions, some degree of manipulation is involved in every procedure. Fish for experiments may be obtained from various sources - natural waters, rearing ponds, or from a hatchery. Fish transferred from natural reservoirs or ponds are usually allowed to recover from harvest and transport stress, andto acclimate for 2-4 weeks to the laboratory conditions. It is, however, unclear how previous rearing conditions affect fish susceptibility of fish to manipulation during experimental procedures themselves.