The invasive Pacific oyster, Crassostrea gigas, in Scandinavian coastal waters: A risk assessment on the impact in different habitats and climate conditions

• Main Authors: Dolmer, Per, Holm, Mark W., Strand, Åsa, Lindegarth, Susanne, Bodvin, Torjan, Norling, Pia, Mortensen, Stein
• Format: Report
• Language: English
• Published: Havforskningsinstituttet 2014
• Subjects: VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497; VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488; risk assessment; risikovurdering; oysters; østers; invasive alien species; fremmede skadelige arter; Pacific; Norway; Crassostrea gigas; Pacific oyster
• Online Access: http://hdl.handle.net/11250/193021

A massive invasion of the Pacific oyster, Crassostrea gigas, has occurred in Scandinavia during the last decade. The introduction and dispersal was described through collaboration between scientists from Sweden, Denmark and Norway. This work has been followed up by national activities that clearly visualized the need for a continued collaboration between scientists in the Scandinavian countries, as the bio-invasion is a cross-border issue and management actions then have to be synchronized, and based on a “state of the art” knowledge of the Scandinavian bio-invasion of the species. The risk assessment presented in this report is based on available scientific literature, expert judgments and data collected during a Nordic collaboration project on Pacific oysters in 2011 – 2013.