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Date of Award
1979
Document Type
Thesis
Degree Name
Master of Science (M.S.)
Department
Graduate School
First Advisor
Steven Obrebski
First Committee Member
James A. Blake
Second Committee Member
Edmund H. Smith
Abstract
Cerithidea california is examined to determine the fecundity of the parasitic trematode species in its gonad. Five species of trematodes are studied (Cloacitrema michiganensis, Euhaplorchis californiensis, Parorchis acanthus, Himasthia rhigedana, and Acanthoraryphium sp.). Their fecundity is determined by direct counts of rediae and estimation of the cercarial population. Correlations are shown for trematode numbers and snail size.
Incidences of infection are given with regard to site, snail size, and trematode species. Comparison is made between infection ratios of C. californica and another marsh snail, Batillaria zonalis.
Pages
35
Recommended Citation
Emery, John M.. (1979). Larval trematode populations and host-parasite interactions in Cerithidea Californica. University of the Pacific, Thesis. https://scholarlycommons.pacific.edu/uop_etds/2009
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