Objective The overall objective of the project is to improve the scientific basis for an increased and sustainable exploitation of bivalve resources in the European Community. To this end we want to- investigate conditions for successful recruitment- quantify the interaction between filtration, nutrient cycling and hydrodynamics and the consequences for mussel production- quantify the environmental impact of mussel exploitation for birds, and the impact of birds on mussel stocks- integrate the obtained knowledge in a model allowing for an optimal exploitation of resources.METHIODOLGY AND RESEARCH TASKSThe approach consists of a comparative analyses of different mussel culture areas by carrying out field studies, supported by laboratory experiments and integrated into models. Laboratory studies are carried out for quantification of processes that cannot be measured in the field. The models will focus on optimisation of exploitation of an area for mussel culture meanwhile minimising the impact of mussel culture.The project will be carried out in the following research areas Koljofjord (NW coast ofSweden), Limfjord (Denmark) and Pertuis Breton (France), Wadden Sea (sites in Germany and the Netherlands) and the Oostersclhelde (SW Netherlands). All investigated areas can be regarded as meso/eutrophic but vary greatly in terms of mixing intensity of the water column. Swedish and Danish fjords have low tidal amplitudes and mixing of the water column is primarily wind driven. In the Waddn Sea, the Oostersclhelde and the Pertuis Breton, mixing of the water column is primarily governed by tidal currants. The areas have in common that there is extensive shellfish exploitation, which is carried out as:- Off-bottom culture in the fjords (Sweden, Denmark, France) and - On-bottom culture/fisheries in the Limfjord (DK), Wadden Sea (GER, NL) and Oostersclhelde (NL)The research tasks areTask 1. Mussel culture and recruitment successSub-tasks 1.1 Mussel larvae and spatfall dynamics 1.2 Spatfall in relation to mussel dredged areasTask 2. Filtration, nutrient cycling and mussel yieldSub-tasks:2.1 Filtration capacity and mussel yield of different culture types2.2 In situ estimation of feedback's through musselsTask 3. Predation of mussels by seabirds and interference with mussel fisherySub-tasks:3.1 Effects of mussel resources on seabird populations3.2 Effects of seabird predation in relation to fishery on mussel populationsTask 4 IntegrationSub-tasks:4.1 Verification of existing. mussel carrying capacity models for bottom and rope culture sites4.2 Development of sub-models for the Limfjord experimental area4.3 Development and validation of a sub-model on bird predation4.4 Combining sub -models into a dynamic generalised ecosystem model and validation for the different sites Fields of science agricultural sciencesagriculture, forestry, and fisheriesfisheriesnatural sciencesbiological scienceszoologyornithologynatural sciencesbiological sciencesecologyecosystemsnatural sciencesbiological sciencesbiological behavioural sciencesethologybiological interactions Programme(s) FP4-FAIR - Specific research, technological development and demonstration programme in the field of agriculture and fisheries (including agro-industry, food technologies, forestry, aquaculture and rural development), 1994-1998 Topic(s) 5.2.2 - The effects of aquaculture on the environment Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator Netherlands Institute for Fisheries Research EU contribution No data Address Korringaweg 5 4400 AB Yerseke Netherlands See on map Total cost No data Participants (6) Sort alphabetically Sort by EU Contribution Expand all Collapse all Danish Institute of Fisheries Research Denmark EU contribution No data Address Charlottenlund Castle 2920 Charlottenlund See on map Total cost No data GOETEBORG UNIVERSITY Sweden EU contribution No data Address TJAERNOE SE-45296 STROEMSTAD See on map Total cost No data Instituut voor Bos- en Natuuronderzoek Netherlands EU contribution No data Address Zuiderhaaks 17 1797 AD 't Horntje See on map Total cost No data NATIONAL ENVIRONMENTAL RESEARCH INSTITUTE - MINISTRY OF ENVIRONMENT AND ENERGY Denmark EU contribution No data Address 399,Frederiksborgvej 399 4000 ROSKILDE See on map Total cost No data Niedersachsisches Landesamt fur Okologie Germany EU contribution No data Address An der Muhle 5 26548 Norderney See on map Total cost No data VKI - Institute for the Water Environment Denmark EU contribution No data Address Agern Alle 11 2970 Horsholm See on map Total cost No data