[Histological, histochemical and histophysiological changes of the exocrine pancreas and stomach fundus in Anguilla anguilla L. in the course of postlarval development].

During the postlarval development of eels exocrine status of pancreas and fundus was investigated. Therefore results of histomorphological, histophysiological and histochemical tests were interpreted. The conclusion is that there is no secretory activity till stage I. No relation exists between secretory activity and food-supply.