How fish-helminth associations arise: an example from Arctic charr in Loch Rannoch

Autor:	Mustafa Dörücü, D. W. T. Crompton, Colin E. Adams, Felicity A. Huntingford
Rok vydání:	1995
Předmět:	Ecology fungi Parasitism Pelagic zone Aquatic Science Biology biology.organism_classification Arctic Sympatric speciation Benthic zone Helminths Fish geographic locations Ecology Evolution Behavior and Systematics Salmonidae
Zdroj:	Journal of Fish Biology. 47:1038-1043
ISSN:	1095-8649 0022-1112
DOI:	10.1111/j.1095-8649.1995.tb06027.x
Popis:	Three sympatric morphs of Arctic charr Sulvelinus alpinus occur in Loch Rannoch, Scotland, and are identified by their differing head morphology and diet. These are small-headed benthic, large-headed benthic and pelagic morphs. Six species of endoparasitic helminth were found in the fish, but the morphs had different patterns of infection. Overall infections in pelagic charr were heavier than in large-headed benthics, which were in turn heavier than in small-headed benthics, even though benthic charr live longer than pelagics. Pelagic fish had high prevalences and intensities of pseudophyllidean tapeworms, the intermediate hosts of which are copepods. The prevalence and intensity of metacercariae of Diplostomurn sp. (the intermediate hosts of which are snails) were high in the benthic morphs. The results are discussed in terms of the effects of ecological factors on transmission of helminth parasites to their hosts and the evolution of host-parasite associations. f:, 1995 The Fisheries Society of the British Isles
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2ac30b9deceb7e1bb08425e96d60ab50 https://doi.org/10.1111/j.1095-8649.1995.tb06027.x Zobrazit plný text záznamu Plný text