Biological Invasions

, Volume 12, Issue 6, pp 1453–1458

Massive settlements of the Pacific oyster, Crassostrea gigas, in Scandinavia

  • Anna-Lisa Wrange
  • Johanna Valero
  • Lisbeth S. Harkestad
  • Øivind Strand
  • Susanne Lindegarth
  • Helle Torp Christensen
  • Per Dolmer
  • Per Sand Kristensen
  • Stein Mortensen
Invasion Note

DOI: 10.1007/s10530-009-9565-6

Cite this article as:
Wrange, AL., Valero, J., Harkestad, L.S. et al. Biol Invasions (2010) 12: 1453. doi:10.1007/s10530-009-9565-6

Abstract

The Pacific oyster (Crassostrea gigas) is an important aquaculture species world-wide. Due to its wide environmental tolerance and high growth rate, it has also become a successful invader in many areas, leading to major ecosystem changes. Low water temperatures were previously believed to restrict the establishment of Pacific oysters in Scandinavia. However, recent surveys reveal that the Pacific oyster is now established in many areas in Scandinavia. The biomass of oysters in the Danish Wadden Sea has increased dramatically between 2005 and 2007, large numbers were observed along the Swedish west coast from settlement in 2006, and in Norway, populations are established along the southwest coast to 60°N.

Keywords

Crassostrea gigas Invasive species Spreading Recruitment Scandinavia Water temperature 

Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Anna-Lisa Wrange
    • 1
  • Johanna Valero
    • 1
  • Lisbeth S. Harkestad
    • 2
  • Øivind Strand
    • 2
  • Susanne Lindegarth
    • 1
  • Helle Torp Christensen
    • 3
  • Per Dolmer
    • 3
  • Per Sand Kristensen
    • 3
  • Stein Mortensen
    • 2
  1. 1.Department of Marine EcologyGöteborg University, Sven Lovén Centre for Marine Sciences TjärnöStrömstadSweden
  2. 2.Institute of Marine ResearchNordnes, BergenNorway
  3. 3.Technical University of Denmark, National Institute of Aquatic ResourcesCharlottenlundDenmark

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