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Journal of Experimental Biology 91,339-347 (1981)
Published by Company of Biologists 1981

The Fate of Glomerular Filtration Markers Injected Into the Haemolymph of the Amphibious Crab Holthuisana Transversa

PETER GREENAWAY 1

1 School of Zoology, University of New South Wales, P.O. Box 1, Kensington, N.S.W. 2033, Australia

1. Three glomerular filtration markers injected into Holthuisana transversa disappeared from the haemolymph at very different rates. Polyethylene glycol 4000 disappeared at a rate ca. 5 times faster than Cr-EDTA and ca. 15 times faster than inulin. Inulin and Cr-EDTA were excreted by the crab but only 5 % of the injected PEG 4000 left the body.

2. Inulin injected into the excretory organs was reabsorbed into the haemolymph.

3. The reliability of commonly used glomerular nitration rate markers as indicators of filtration in decapods is discussed.

Submitted on July 31, 1981






© The Company of Biologists Ltd 1981