Temperature and erythropoiesis in goldfish

Abstract

The influence of temperature upon erythropoiesis was examined by reference to the recovery of goldfish acclimated to 7.5 and 30 °C from phenylhydrazine-induced anemia. Half-times for recovery at 30 °C ranged from 4.4 to 7 days. No recovery was evident over a 70-day period at 7.5 °C. However, exposure of the latter animals to graded temperature increases lead to increases in red cell numbers, hematocrit, and hemoglobin. Higher temperatures may stimulate erythropoiesis directly or may facilitate response to other temperature-related stimuli.