Field populations of Margarites pupillus (Gould), a numerically abundant prosobranch mollusc occuring on rocky shores in Puget Sound, Washington, have previously received little autecological attention. Seawater table studios and SCUBA observations led to the following conclusions: Populations of Margarites are primarily subtidal. Population density and growth are directly related to algal canopy density. Algal canopy may function in reducing predator efficiency, Margarites populations have a 1:1 sex-reatio and no size dimorphism. Sexually mature individuals live for at least two years, and possibly more than four years.
College and Department
Plant and Wildlife Sciences
BYU ScholarsArchive Citation
Schroeter, Stephen Craig, "Characterization of field populations of Magarites pupillus (Gould) (Gastropoda, Prosobranchia)" (1972). Theses and Dissertations. 7868.