Relationship between interannual variations of the river plume and the extent of nursery grounds for the common sole (Solea solea, L.) in Vilaine Bay: effects on recruitment variability
Le Pape, O.; Chauvet, F.; Désaunay, Y.; Guérault, D. (2003). Relationship between interannual variations of the river plume and the extent of nursery grounds for the common sole (Solea solea, L.) in Vilaine Bay: effects on recruitment variability. J. Sea Res. 50(2-3): 177-185. https://dx.doi.org/10.1016/s1385-1101(03)00061-3 In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101; e-ISSN 1873-1414, more Also appears in:Geffen, A.J.; Nash, R.D.M.; van der Veer, H.W. (Ed.) (2003). Proceedings of the Fifth International Symposium on Flatfish Ecology, Part I. Port Erin, Isle of Man, 3-7 November 2002. Journal of Sea Research, 50(2-3). Elsevier: Amsterdam. 87-270 pp., more |  |
| Keywords | Distribution > Geographical distribution
Fisheries > Finfish fisheries > Flatfish fisheries
Motion > Fluid motion > Fluid flow > Plumes > River plumes
Nursery grounds
Population functions > Recruitment
Temporal variations > Periodic variations > Annual variations
Water bodies > Coastal waters > Coastal landforms > Coastal inlets > Estuaries
Solea solea (Linnaeus, 1758) [WoRMS]
ANE, France, Brittany, Vilaine Bay
Marine/Coastal | | Author keywords | fluvial discharge; Solea solea; estuarine nursery ground; recruitmentvariability |
| Authors | | Top | - Le Pape, O.
- Chauvet, F.
- Désaunay, Y.
- Guérault, D.
| | |
| Abstract | This study describes the spatial distribution of juvenile sole on the basis of a 10-year beam trawl survey of Vilaine Bay, an estuarine nursery ground within the Bay of Biscay (France). A significant relationship between fluvial discharges in winter-spring and the area covered by high densities of 0-group juveniles was indicative of the favourable effects of freshwater supply on nursery size. The extent of the river plume influences both the larval supply and the size and biotic capacity of habitats in estuarine nursery grounds and determines the number of juveniles produced. The correlation between river flow and sole recruitment for Vilaine Bay was confirmed for the Bay of Biscay stock. As the recruitment of the Bay of Biscay sole stock depends partly on the influence of river plumes on nursery grounds, it appears to be less variable than for other sole stocks affected essentially by larval supply. The balance between the different factors influencing recruitment differs according to the area concerned, and recruitment variability depends on the respective roles of these factors. |
|
