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Journal of Experimental Biology 17,331-336 (1940)
Published by Company of Biologists 1940

The Effects on the Fat and Starch Metabolism of Gebia by the Parasite Gyge Branchialis

T. E. HUGHES M.A.

1. Males of Upogebia littoralis parasitized by Gyge branchialis show a marked increase in fat content from 1·04 to 1·6%.

2. Parasitized females have a fat content practically the same as that of ordinary non-ovigerous females, 1·2%.

3. Ovigerous females have a fat content considerably higher than that of parasitized males or non-ovigerous females, namely 2·2%.

4. The parasite Gyge has a relatively high fat content, 4·4%.

5. There is a significant diference in glycogen content between normal males and females.

6. There may be a slight increase in glycogen following parasitization.

7. The results are essentially in agreement with the theory of metabolic stimuli put forward by Geoffrey Smith.