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Titolo:
Elevation of plasma cortisol during the spawning migration of landlocked kokanee salmon (Oncorhynchus nerka kennerlyi)
Autore:
Carruth, LL; Dores, RM; Maldonado, TA; Norris, DO; Ruth, T; Jones, RE;
Indirizzi:
Univ Calif Los Angeles, Dept Physiol Sci, Los Angeles, CA 90095 USA Univ Calif Los Angeles Los Angeles CA USA 90095 Los Angeles, CA 90095 USA Univ Denver, Dept Biol Sci, Denver, CO 80208 USA Univ Denver Denver CO USA 80208 nver, Dept Biol Sci, Denver, CO 80208 USA Univ Colorado, Dept Epo Biol, Boulder, CO 80309 USA Univ Colorado BoulderCO USA 80309 , Dept Epo Biol, Boulder, CO 80309 USA
Titolo Testata:
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-PHARMACOLOGY TOXICOLOGY & ENDOCRINOLOGY
fascicolo: 2, volume: 127, anno: 2000,
pagine: 123 - 131
SICI:
1367-8280(200009)127:2<123:EOPCDT>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
RAINBOW-TROUT; STRESS;
Keywords:
kokanee salmon; sockeye salmon; corticosteroids; cortisol; hypothalamic-pituitary-interrenal (HPI) axis; migration; radioimmunoassay;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
41
Recensione:
Indirizzi per estratti:
Indirizzo: Carruth, LL Univ Calif Los Angeles, Dept Physiol Sci, 621 Charles E Young Dr,S Box 951527, Los Angeles, CA 90095 USA Univ Calif Los Angeles 621 Charles E Young Dr,S Box 951527 Los Angeles CA USA 90095
Citazione:
L.L. Carruth et al., "Elevation of plasma cortisol during the spawning migration of landlocked kokanee salmon (Oncorhynchus nerka kennerlyi)", COMP BIOC C, 127(2), 2000, pp. 123-131

Abstract

Kokanee salmon (Oncorhynchus nerka kennerlyi), a landlocked subspecies of sockeye salmon, exhibited hypothalamic-pituitary-interrenal (HPI, adrenal homologue) axis activation and an increase in plasma cortisol concentration up to 639 +/- 55.9 ng/ml in association with upstream migration in the upper Colorado River even though they were not exposed to a change in salinity and lengthy migration. Kokanee salmon were collected at various stages of migration and concomitant sexual maturation. The pattern of cortisol elevation in kokanee is similar to that in ocean-run sockeye salmon (O. nerka nerka). The presence of plasma cortisol elevation in an upstream migrating, landlocked Pacific salmon suggests that stressors previously considered to cause the cortisol increase, such as long-distance migration and changes in salinity, may not be primary causes of the HPI axis activation. (C) 2000 Elsevier Science Inc. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 19:35:06