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Biol Bull 74: 108-116. (February 1938)
© 1938 Marine Biological Laboratory
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EXPERIMENTS ON LIGIA IN BERMUDA

V. FURTHER EFFECTS OF SALTS AND OF HEAVY SEA WATER

T. CUNLIFFE BARNES 1

1 From the Osborn Zoölogical Laboratory, Yale University, and the Bermuda Biological Station

1. When presented with a "choice" between filter paper moistened with sea water or with distilled water, freshly caught specimens of Ligia tend to collect on the latter. Dilution of the sea water destroys this effect.

2. The survival of Ligia immersed in 25 per cent sea water with added calcium approaches the longevity in natural sea water.

3. Preliminary exposure of solutions of high calcium content does not protect Ligia from subsequent immersion in hypotonic sea water.

4. The lethal action of 5 cc. of sea water at 38° C. is enhanced by 99 per cent heavy water.






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Copyright © 1938 by the Marine Biological Laboratory.