Hemolymph osmo-ionic concentrations in terrestrial crabs following desiccation |
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| Institution: | 1. Department of Medicine, Division of Endocrinology, Diabetes & Clinical Nutrition, Oregon Health & Science University, Portland, OR, USA;2. Department of Neurological Surgery, Oregon Health & Science University, Portland, OR, USA;3. Northwest Pituitary Center, Oregon Health & Science University, Portland, OR, USA;1. Department of Biotechnology, Faculty of Science and Technology, Suan Sunandha Rajabhat University, Dusit, Bangkok 10300 Thailand;2. Department of Marine Science, Faculty of Fisheries, Kasetsart University, Chatuchak, Bangkok 10900 Thailand;3. Center for Advanced Studies in Tropical Natural Resources, NRU-KU, Kasetsart University, Bangkok 10900 Thailand |
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| Abstract: | - 1.1. The hemolymph osmotic, Na+ K+, Ca++ and Mg++ concentrations were determined for both sexes in crabs from mangrove Ucides cordatus and Goniopsis cruentata and supralittoral Ocypode quadrala after aerial desiccation, for 10 hr.
- 2.2. There was no difference between sexes in the two mangrove crabs, but in O. quadrata the females were the most significantly affected (P < 0.01).
- 3.3. Hemolymph osmotic Na+, Ca++ and Mg++ concentrations increased significantly in desiccated ghost crabs, while K + concentration was not significantly changed. In the two mangrove crabs, only hemolymph Ca++ concentration increased significantly, after desiccation.
- 4.4. The short time desiccation is suggested to be a device to study the steps of osmo-ionic regulation in terrestrial crabs.
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