05; van Weel, 1970), the crayfish Astacus fluviatilis (pH 5 to 6; Kooiman, 1964) and other crustaceans (Biesiot, 1986; Blandamer and Beechey, 1964; Mayzaud, 1985; Wojtowicz and Brokerhoff, 1972).
The occurence of carbohydrases in digestive juice and in hepatopancreas of Astacus fluviatilis Fabr.