Host specificity and geographical distribution ofEubothriumin European salmonid fish
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چکیده
منابع مشابه
Host specificity and geographical distribution of Eubothrium in European salmonid fish.
The host specificity and distribution of Eubothrium crassum (Bloch, 1779) and Eubothrium salvelini (Schrank, 1790), morphologically fairly similar pseudophyllidean tapeworms parasitizing salmonid fish, were critically assessed on the basis of morphological and genetic evaluation of extensive material collected from different definitive hosts and geographical regions in Europe. Eubothrium crassu...
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Myxobolus arcticus Pugachev and Khokhlov, 1979 is a freshwater myxosporean parasite infecting the nerve tissues of salmonid fishes throughout the Pacific region of Far East Asia and North America. The principal fish host is sockeye salmon Oncorhynchus nerka in North America and masu salmon O. masou in Japan. Actinospores of M. arcticus were isolated from the lumbriculid oligochaetes Lumbriculus...
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We tested the hypothesis that dispersal is sex biased in an unexploited population of brook trout, Salvelinus fontinalis, on Cape Race, Newfoundland, Canada. Based on the assumptions that trout are promiscuous and that reproductive success is limited primarily by either number of mates (males) or fecundity (females), we predicted that males would disperse greater distances than females. We also...
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Bacterial strains of Aeromonas salmonicida included in the recognized subsp. acromogenes, subsp. masoucida, and subsp. smithia in addition to the large number of strains not included in any of the described subspecies are referred to as atypical A. salmonicida. The atypical strains form a very heterogeneous group with respect to biochemical characteristics, growth conditions, and production of ...
متن کاملBehavioural and Neuroendocrine Effects of Stress in Salmonid Fish
Øverli, Ø. 2001. Behavioural and neuroendocrine effects of stress in salmonid fish. Acta Universitatis Upsaliensis. Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 623. 79 pp. Uppsala. ISBN 91-554-5007-5 Stress can affect several behavioural patterns, such as food intake and the general activity level of an animal. The central monoamine neurotransmitt...
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ژورنال
عنوان ژورنال: Journal of Helminthology
سال: 2003
ISSN: 0022-149X,1475-2697
DOI: 10.1079/joh2003188