Variations in the presence of chloride cells in the gills of lampreys (Petromyzontiformes) and their evolutionary implications

Bartels, H., Docker, M.F., Krappe, M., White, M.M., Wrede, C. and Potter, I.C. (2015) Variations in the presence of chloride cells in the gills of lampreys (Petromyzontiformes) and their evolutionary implications. Journal of Fish Biology, 86 (4). pp. 1421-1428.

Abstract

Although confined to fresh water, non-parasitic species of lampreys and the landlocked parasitic sea lamprey, all of which were derived relatively recently from anadromous ancestors, still develop chloride cells, whose function in their ancestors was for osmoregulation in marine waters during the adult parasitic phase. In contrast, such cells are not developed by the non-parasitic least brook lamprey Lampetra aepyptera, which has been separated from its ancestor for >2 million years, nor by the freshwater parasitic species of the genus Ichthyomyzon. The length of time that a non-parasitic species or landlocked parasitic form or species has spent in fresh water is thus considered the overriding factor determining whether chloride cells are developed by those lampreys.

Item Type:	Journal Article
Publisher:	Blackwell Publishing Inc
Copyright:	© 2015 The Fisheries Society of the British Isles.
URI:	http://researchrepository.murdoch.edu.au/id/eprint/25582

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