Abstract
The effects of temperature and salinity acclimation on intermediary metabolism in excised gill homogenates from Hemigrapsus nudus were examined. In general, a decrease in salinity was followed by an increase in the oxidation of the substrates glucose-1-14C, acetate-1-14C and glycine-14C to 14CO2. Also, there was an increase in amino acid incorporation into the protein fraction. Both of these metabolic parameters were differentially temperature-sensitive. An enzymic model which may explain the increase in respiration rate observed in several intertidal invertebrates meeting an hypo-osmotic stress is proposed, using data from these experiments and also from the literature.
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Communicated by T.R. Parsons, Vancouver
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Hulbert, W.C., Schneider, D.E. & Moon, T.W. Temperature and salinity adaptation in the purple shore crab Hemigrapsus nudus: An in vitro metabolic flux study with excised gills. Mar. Biol. 36, 223–231 (1976). https://doi.org/10.1007/BF00389283
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DOI: https://doi.org/10.1007/BF00389283