Behaviour, physiology and carotenoid pigmentation in Arctic charr Salvelinus alpinus

Sammanfattning

The behaviour during an exploration task and the response to a confinement stress of Arctic charr Salvelinus alpinus were evaluated. Behaviour of individuals during 90 min of exploration was classified into high and low activity. High-activity individuals had higher plasma cortisol levels following stress compared to low-activity individuals. This indicates that high- and low-activity individuals correspond to reactive and proactive stress-coping styles. Further, a pigmentation analysis showed that high-activity individuals had a higher number of carotenoid spots cm(-2) than low-activity individuals. Thus, carotenoid pigmentation, as melanin pigmentation in other salmonids, could be linked to stress-coping style in S. alpinus. (C) 2013 The Fisheries Society of the British Isles

Nyckelord

activity; confinement stress; stress-coping style

Publicerad i

Journal of Fish Biology
2014, volym: 84, nummer: 1, sidor: 1-9
Utgivare: WILEY-BLACKWELL

SLU författare

• Brännäs, Eva

  • Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
    

• Nilsson, Jan

  • Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
    

• Magnhagen, Carin

  • Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
    

• Backström, Tobias

  • Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Ekologi
Skogsvetenskap

Publikationens identifierare

• DOI: https://doi.org/10.1111/jfb.12240

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/56289