(full paper is archived in the Miller Library)
Title: A comparison of carbohydrate digestion capabilities in four species of Acmaeas (Mollusca: Gastropoda: Prosobranchia)
Student Author(s): Beppu, William J.
Location: Final Papers Biology 175H
Date: June 1966
Abstract: The carbohydrate digestion of four limpets, Acmaea scabra, A. digitalis, A. limatula, and A. scutum was studied. The presence of a kappa-carrageeninase, an agarase, a laminarinase, a fucoidinase, an alginase, and an amylase was found in all species. Some correlation of available sources of food with enzyme activity was found. Carbohydrase levels in starved animals were compared with level in non-starved animals. A decrease in enzyme activity during starvation was found, and the amount of this decrease could be correlated with height in the intertidal, higher species (A. scabra and A. digitalis) showing less decrease than lower species (A. limatula and A. scabra). This correlation might be related to food retention time and to feeding behavior.
Notes: Published 1968, Veliger 11(Suppl): 98-101