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Stress response of juvenile rainbow trout (Oncorhynchus mykiss)to chemical cues released from stressed conspecifics

Toa, D. G., Afonso, L. O. B. and Iwama, G. K. 2004, Stress response of juvenile rainbow trout (Oncorhynchus mykiss)to chemical cues released from stressed conspecifics, Fish physiology and biochemistry, vol. 30, no. 2, pp. 103-108, doi: 10.1007/s10695-005-0266-5.

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Title Stress response of juvenile rainbow trout (Oncorhynchus mykiss)to chemical cues released from stressed conspecifics
Formatted title Stress response of juvenile rainbow trout (Oncorhynchus mykiss)to chemical cues released from stressed conspecifics
Author(s) Toa, D. G.
Afonso, L. O. B.
Iwama, G. K.
Journal name Fish physiology and biochemistry
Volume number 30
Issue number 2
Start page 103
End page 108
Total pages 6
Publisher Kluwer Academic Publishers
Place of publication Amsterdam, The Netherlands
Publication date 2004
ISSN 0920-1742
1573-5168
Keyword(s) Chemical cues
Cortisol
Fish
hsp70
Salmonidae
Skin extract
Summary The objective of this study was to determine whether exposure of rainbow trout (Oncorhynchus mykiss) to water containing a stressed trout or skin extract from stressed and non-stressed trout would elicit a stress response in conspecifics. Juvenile rainbow trout were exposed for 1 hour to water containing a stressed fish, homogenized skin extracts from a non-stressed fish, skin extract from a stressed fish and water with none of these factors. The stress response was measured over a 24-h period (1, 6, 12, 24 h after exposure). Plasma cortisol levels increased at 12 h in fish exposed to water from a stressed fish and skin extract from a stressed fish. Plasma glucose and hepatic hsp70 levels were not affected by treatments. The results suggest that rainbow trout elicit a stress response when exposed to stress-related alarm cues released from conspecifics.
Language eng
DOI 10.1007/s10695-005-0266-5
Field of Research 070405 Fish Physiology and Genetics
Socio Economic Objective 830102 Aquaculture Fin Fish (excl. Tuna)
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2005, Kluwer
Persistent URL http://hdl.handle.net/10536/DRO/DU:30047937

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