Abstract
The resistance to high and low temperatures, starvation and desiccation effects in the sand dwelling amphipods Bathyporeia pilosa Lindström and B. pelagica (Bate) have been tested. B. pilosa was the more tolerant species in all experiments. Gravid females showed a greater resistance to high temperatures than adult males in both species, and starvation tolerance was in the order gravid females>juvenile males> adult males. Time-temperature relationships, however, would seem to be of greater ecological significance than upper or lower lethal temperatures, and desiccation effects become obvious well within any limits set by starvation. Exposure would appear to be an important concept limiting the intertidal distribution of sand dwelling animals, particularly those confined to the surface layers of sediment. The amplitude, rate and degree of environmental change and its effect on feeding and reproduction offer severe limitations to the distribution of the two Bathyporeia species studied.
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Communicated by J. H. S. Blaxter, Oban
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Preece, G.S. The ecophysiological complex of Bathyporeia pilosa and B. pelagica (Crustacea: Amphipoda). II. Effects of exposure. Marine Biology 11, 28–34 (1971). https://doi.org/10.1007/BF00348018
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DOI: https://doi.org/10.1007/BF00348018