Home About Browse Search
Svenska


Anaesthesia and handling stress effects on pigmentation and monoamines in Arctic charr

Backström, Tobias and Heynen, Martina and Brännäs, Eva and Nilsson, Jan and Winberg, Svante and Magnhagen, Carin (2017). Anaesthesia and handling stress effects on pigmentation and monoamines in Arctic charr. Environmental Biology of Fishes. 100, 471-480
[Journal article]

[img]
Preview
PDF - Published Version
Available under License Creative Commons Attribution.

508kB

Official URL: http://dx.doi.org/10.1007/s10641-016-0563-0

Abstract

Stress responsiveness differs between individuals and is often categorized into different stress coping styles. Using these stress coping styles for selection in fish farming could be beneficial, since stress is one main factor affecting welfare. In Arctic charr (Salvelinus alpinus) carotenoid pigmentation is associated with stress responsiveness and stress coping styles. Thus this could be an important tool to use for selection of stress resilient charr. However, anaesthetics seem to affect carotenoid pigmentation, and it would be better if the method for selection could be implemented during normal maintenance, which usually includes anaesthetics. Therefore, this study investigated how the use of anaesthetics affected carotenoid pigmentation, i.e. number of spots, over time compared to no-anaesthetic treatment. Additionally, the stress indicators monoamines and glucocorticoids were investigated. The results indicate that the anaesthetic MS-222 affects number of spots on the right side. This anaesthetic also increased dopaminergic activity in the telencephalon. Both brain dopaminergic and serotonergic activity was associated with spottiness. Further, behaviour during anaesthetization was associated with spots on the left side, but not the right side. Repetition of the same treatment seemed to affect spot numbers on the right side. In conclusion, this study shows that inducing stress in charr affects the carotenoid spots. Thus, it is possible to use anaesthetics when evaluating spottiness although careful planning is needed.

Authors/Creators:Backström, Tobias and Heynen, Martina and Brännäs, Eva and Nilsson, Jan and Winberg, Svante and Magnhagen, Carin
Title:Anaesthesia and handling stress effects on pigmentation and monoamines in Arctic charr
Series/Journal:Environmental Biology of Fishes (0378-1909)
Year of publishing :2017
Volume:100
Page range:471-480
Number of Pages:10
Publisher:Springer Verlag
ISSN:0378-1909
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:M Aquatic sciences and fisheries > M01 Fisheries and aquaculture - General aspects
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Fish and Aquacultural Science
Keywords:Anaesthesia, Carotenoid pigmentation, Lateralization, Monoamine, Salmonid, Stress
URN:NBN:urn:nbn:se:slu:epsilon-e-4233
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-4233
Additional ID:
Type of IDID
Web of Science (WoS)000400073300001
ID Code:14391
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Wildlife, Fish and Environmental Studies
Deposited By: SLUpub Connector
Deposited On:15 Jun 2017 10:59
Metadata Last Modified:15 Jun 2017 10:59

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits