FISHERIES RESEARCH INSTITUTE,MOA,TAIWAN

In this study, we examined changes of hematological parameters in blackporgy Acanthopagrus schlegeli after anesthetization in 2-phenoxyethanol (2-PE)of various concentrations. In 400 and 600 ppm 2-PE solutions, black porgies wereanesthetized to total loss of equilibrium within 3 min. The all values ofhematological parameters of the anesthetized fishes were not significantlydifferent between the anesthesia and control groups (p > 0.05). In 200 ppm 2-PEsolution, since the fish could not be anesthetized to total loss of equilibriumwithin 30 min, we tested the black porgies which have been anesthetized for 15min in this solution and found that the fish showed significantly decrease inhematocrit and increase in plasma glucose. It is, therefore, concluded thathigher dosages of 2-PE will take shorter time to induce less stress effect onthe anesthetized fish.