Thermal acclimation in the fresh water planarians,Dugesia tigrina and D. dorotocephala |
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Authors: | Dennis L. Claussen Lisa M. Walters |
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Affiliation: | (1) Department of Zoology, University College of Swansea, SA2 8PP Swansea, Wales;(2) Department of Zoology, University of Nottingham, NG7 2RD University Park, Nottingham, England |
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Abstract: | The fecundity of two British populations of the freshwater crayfish Austropotamobius pallipes was examined. A number of maternal-size-related variables were correlated with counts of pleopodal eggs per female. Egg numbers did not decrease with increasing time from initial laying. Ovarian egg counts were considerably higher than expected pleopodal egg numbers. The influence of locational parameters is discussed and regional comparisons made. |
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Keywords: | Austropotamobius pallipes crayfish fecundity eggs |
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