European oysters, Ostrea edulis
Photo: Pierre DeWit

Management of oysters, Ostrea edulis – genetic status and future threats

Research project
Active research
Project size
3 000 000 SEK
Project period
2020 - 2023
Project owner
Department of Marine Sciences

Short description

The Scandinavian population of the European flat oyster, Ostrea edulis, is unique as other parts of its native range have been affected by overharvest, aquaculture translocations and infectious parasites. Despite this, there has to date not been any effort to map the genetic diversity, nor has there been any work to investigate if some of the genetic variation is associated with increased tolerance to diseases or environmental changes. In this project, we map variations in genetic diversity on a fine scale along the Scandinavian coasts using state-of-the-art genomic methods, and investigate phenotypic differences among oyster populations. This information is critical for future management efforts, as well as for the currently developing Scandinavian aquaculture industry, which is aiming to be sustainable.

Participating researchers

Pierre de Wit, Department of Marine Sciences – Tjärnö, University of Gothenburg 
Personal webpage

Jakob Hemmer Hansen, DTU AQUA Technical University of Denmark
Personal webpage

Ane Timenes Laugen, University of Agder, Norway
Personal webpage

Chloe Robert, Department of Marine Sciences – Tjärnö, University of Gothenburg 

Åsa Strand, IVL Swedish Environmental Research Institute
Personal webpage