An Arctic Intertidal Population of Macoma balthica (Mollusca, Pelecypoda): Genotypic and Phenotypic Components of Population Structure

• Published in: Canadian Journal of Fisheries and Aquatic Sciences
• Main Authors: Green, Roger H., Singh, Shiva M., Hicks, Beverly, McCuaig, Janet M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1983
• Subjects: Aquatic Science; Ecology, Evolution, Behavior and Systematics; Arctic; Canada; Fort Churchill
• Online Access: http://dx.doi.org/10.1139/f83-158; http://www.nrcresearchpress.com/doi/pdf/10.1139/f83-158

In July 1980 we collected live Macoma balthica from populations at two tide levels near Fort Churchill, Man., Canada. Upper lethal temperature tolerances were determined for clams from the mean low water (MLW) tidal level and from 1.1 m above MLW tidal level, after which all specimens were hard froz...