Skip to main content

Is there genetic variation in the response to competition intensity in juvenile brown trout Salmo trutta?

Buy Article:

$51.00 plus tax (Refund Policy)


Effects of intraspecific competition intensities on the relative performance (growth and movement) of juvenile brown trout Salmo trutta originating from nine different families were tested in tank experiments and in semi-natural streams. Both growth and movement differed consistently among families, indicating genetic variation in these traits. There were no significant interaction effects, however, between the intensity of competition and family origin on performance in either of the two experimental systems. Thus, genetic variation in response to competition intensity appeared to be limited in the population from which the juveniles used in this experiment originate.

Keywords: density dependence; dispersal; environmental heterogeneity; genotypic selection; intraspecific competition; salmonids

Document Type: Regular Paper


Affiliations: Norwegian Institute for Nature Research, Tungasletta 2, NO-7485 Trondheim, Norway

Publication date: 2011-02-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more