IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

The role of coastal areas in the life history of sole (Solea solea L.) in the Bay of Biscay
Koutsikopoulos, C.; Desaunay, Y.; Dorel, D.; Marchand, J. (1989). The role of coastal areas in the life history of sole (Solea solea L.) in the Bay of Biscay, in: Ros, J.D. (Ed.) Topics in Marine Biology: Proceedings of the 22nd European Marine Biology Symposium, Barcelona, Spain, August 1987. Scientia Marina (Barcelona), 53(2-3): pp. 567-575
In: Ros, J.D. (Ed.) (1989). Topics in Marine Biology: Proceedings of the 22nd European Marine Biology Symposium, Barcelona, Spain, August 1987. Scientia Marina (Barcelona), 53(2-3). Instituto de Ciencias del Mar: Barcelona. 145-754 pp., more
In: Scientia Marina (Barcelona). Consejo Superior de Investigaciones Científicas. Institut de Ciènces del Mar: Barcelona. ISSN 0214-8358, more
Peer reviewed article  

Available in  Authors 
    VLIZ: Proceedings [16963]
Document type: Conference paper

Keyword
    Marine

Authors  Top 
  • Koutsikopoulos, C.
  • Desaunay, Y.
  • Dorel, D.
  • Marchand, J.

Abstract
    The importance of shallow-water and the estuarine environment for the sole (Solea solea L.) of the Bay of Biscay is evaluated. Like many estuarine-dependent species, the Bay of Biscay sole is an offshore spawning population. Spawning takes place at depths varying between 50 and 100 m in early spring. Post-larval stages. and early juveniles arrive in the inshore shallow areas where they continue their growth for about two years. Mature fiSh emigrate offshore during winter to participate in the reproduction process. The shallow areas and the estuaries are an essential habitat for the juveniles of this species since no 0 or 1-group juveniles have been observed in deep waters. The survey of sole juveniles in the bay of Vilaine (Northern part of the Bay of Biscay) reveals an ontogenic offshore migration characterized by seasonal changes. Juveniles as they grow move to deeper waters but in summer the individuals are in shallower areas than during winter. The ability of the individuals to react against environmental conditions increases with age. Stressful conditions affect the young individuals shortly after settlement. The 1-group juveniles are able to detect even short term environmental fluctuations. They respond frequently by an offshore migration in order to reach deeper more stable waters. Tagging experiments show that the juveniles of the bay of Vilaine are dispersed all over the Bay of Biscay without any preference during their pre-spawning emigration. No particular linkage between a spawning ground and a nursery area was detected.

All data in IMIS is subject to the VLIZ privacy policy Top | Authors