Skip to main content

Fluctuating asymmetry and fitness correlations in two Engraulis encrasicolus populations

Buy Article:

$51.00 plus tax (Refund Policy)

Correlations among several measures of fluctuating asymmetry (FA) and fitness-related variables were assessed in two populations of the European anchovy Engraulis encrasicolus with fast growth (Aegean Sea) and slow growth (Ionian Sea), respectively. FA levels were borderline significantly higher in the Ionian than in the Aegean for some variables. Variation in otolith shape (deviation from population norm) was lower in the Ionian than the Aegean, contrary to expectation. Within the Aegean, there was no relation between any of the FA indexes and fitness estimators, while in the Ionian a composite otolith FA index was significantly negatively correlated to standard length at age only in 2 year-old individuals. This difference between the Aegean and Ionian may have been related to the lower growth rate in the Ionian, as FA–fitness relations may be more apparent in less-beneficial environments. The absence of significant correlations in the Aegean and the low correlation in one age group in the Ionian suggests that FA is not a sensitive indicator of individual fitness in adult E. encrasicolus.
No References
No Citations
No Supplementary Data
No Data/Media
No Metrics

Keywords: bio-indicator; fitness; growth; otoliths

Document Type: Regular Paper

Affiliations: Institute of Marine Biology and Genetics, Hellenic Centre for Marine Research, Gournes Pediados, P.O. Box 2214, GR 710 03 Heraklion, Crete, Greece

Publication date: 2009-12-01

  • 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