Measurements of the growth rates of two species of sea mussel, Mytilus californianus and Mytilus edulis , were made in Monterey Harbor during the period August 1, 1970 to August 1, 1971. Mussel populations were housed in plexiglass-stainless steel cages and exposed to intertidal and subtidal conditions . Measurements of maximum length and average volume were taken at monthly intervals throughout the annual period. Both species had a very close correlation between sea surface temperature and growth rate and demonstrated characteristic growth patterns for each species. There existed annual, seasonal, and monthly variation in the growth rates of both species as well as differences within different ages and sizes of each species.

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http://archive.org/details/measurementofgro1094515804

Lieutenant, United States Naval Reserve