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Growth of pecten maximus in response to feeding activity in the field - suport for aquaculture activity


Research objectives and content This project deals with a study of the daily growth rate of several population of Pecten maximus from Norwegian coasts using methods defined in our previous work. The objectives are to improve the growth efficiency of juveniles produced in local hatcheries. In a first step, we have to fit our current methods of growth measurements to age O juveniles and to describe the daily growth rate of spat after their transfer in seawater. Concurrently effects of environmental factors on the daily growth rate of a natural population of scallop living in a fjord near Bergen will be analysed. On the same population, the nutritional activity will be assessed on the basis of a high frequency sampling schedule. The ingestion rate and assimilation rate of scallops will be measured in situ and related to the quality and amount of the available food. At last, the daily growth rate (annual variation, temporal variation...) of different populations of scallops of European coasts (from Spain to Norway) will be compared in order to describe the different growth strategies of this species and its adaptation to the different environmental conditions. Training content (objective, benefit and expected impact) The objective of the research suggested is support by our knowledge on scallop growth links with environmental parameters. Describe growth give crucial information on the environmental quality and and allow to give a ruling on adequate area for rearing. The aim purpose of this work is to support norvegian aquaculture activity by selecting the best areas for the rearing of Pecten maximus. Links with industry / industrial relevance (22)


Nordnes Gt 50
5817 Bergen