Plasma cortisol response of seawater-adapted mummichogs (Fundulus heteroclitus) during deep MS-222 anesthesia
Abstract 10.1002/zoo.1430100110.abs Anesthetics are used to reduce stress in fishes during handling and transfer. However, deep anesthesia of seawater-adapted mummichogs (Fundulus heteroclitus) results in a time-related increase in plasma cortisol, indicating a primary (neuroendocrine) stress response. Groups of seven fish were bled within 1 to 12 min of exposure to the anesthetic MS-222. Plasma cortisol […]