Plasma glucose and lactate and hematological changes after handling stresses in the dogfish.

Hematological variables as well as blood glucose and lactate levels are determined in the Mediterranean dogfish after either cannulation surgery or handling by capture. The results show that both types of stress generate similar metabolic changes but somehow different hematological responses, since a cell loss is detected in cannulated fish, whereas an increase of cell volume is observed after handling. At the same time, surgery stress requires longer time to recover the basal levels than handling stress.