Hopkins Marine Station Student Paper

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(full paper is archived in the Miller Library)

Title: Digestive morphology and lipid content in the intertidal isopod Cirolana harfordi
Student Author(s): Reza, Pary
Faculty Advisor(s): Lee, Welton
%E Phillips, John H.
Pages: 21
Location: Final Papers Biology 175H
Date: June 1973
Keywords: Isopoda
Abstract: During a 23 day period after feeding with dyed food, gut contents and morphology of C. harfordi were monitored. Food in the hindgut, in changing volumes of fluid, was broken down into small pieces and eventually digested. The midgut gland showed a continual presence of fat droplets and fluids and contained patches of the dyed food cells. The dye used did not stain the tissue of the hindgut which became clear as the hindgut enmptied. The gut diameter increased after feeding and gradually narrowed. Changes in the relative positions of the diverticula were noted. Overall lipid contents increased sharply with feeding and remained at higher levels than those in non-fed animals through-out the period, indicating that starvation was not occurring.