منابع مشابه
Sex-biased dispersal in a salmonid fish.
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...
متن کاملOccurrence and significance of atypical Aeromonas salmonicida in non-salmonid and salmonid fish species: a review.
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 کاملLinkage relationships reflecting ancestral tetraploidy in salmonid fish.
Fifteen classical linkage groups were identified in two salmonid species (Salmo trutta and Salmo gairdneri) and three fertile, interspecific hybrids (S. gairdneri X Salmo clarki, Salvelinus fontinalis X Salvelinus namaycush and S. fontinalis X Salvelinus alpinus) by backcrossing multiply heterozygous individuals. These linkage relationships of electrophoretically detected, protein coding loci w...
متن کاملMelanin-based skin spots reflect stress responsiveness in salmonid fish.
Within animal populations, genetic, epigenetic and environmental factors interact to shape individual neuroendocrine and behavioural profiles, conferring variable vulnerability to stress and disease. It remains debated how alternative behavioural syndromes and stress coping styles evolve and are maintained by natural selection. Here we show that individual variation in stress responsiveness is ...
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: NIPPON SUISAN GAKKAISHI
سال: 1986
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.52.193