Impact of an icy winter on the Pacific oyster (Crassostrea gigas Thunberg, 1793) populations in Scandinavia

Åsa Strand; Elisa Blanda; Torjan Bodvin; Jens K. Davids; Lasse Fast Jensen; Tore Hejl Holm-Hansen; Anders Hjelmert; Susanne Lindegarth; Stein Mortensen; Frithjof E. Moy; Pernille Nielsen; Pia Norling; Carlo Nyberg; Helle Torp Christensen; Bent Vismann; Mark Wejlemann Holm; Benny Winding Hansen; Per Dolmer

doi:10.3391/ai.2012.7.3.014

Impact of an icy winter on the Pacific oyster (Crassostrea gigas Thunberg, 1793) populations in Scandinavia

Åsa Strand, Elisa Blanda, Torjan Bodvin, Jens K. Davids, Lasse Fast Jensen, Tore Hejl Holm-Hansen, Anders Hjelmert, Susanne Lindegarth, Stein Mortensen, Frithjof E. Moy, Pernille Nielsen, Pia Norling, Carlo Nyberg, Helle Torp Christensen, Bent Vismann, Mark Wejlemann Holm, Benny Winding Hansen, Per Dolmer

National Institute of Aquatic Resources

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Abstract

The Pacific oyster (Crassostrea gigas) is an invasive species that has dispersed into Scandinavia during the last few decades. The objective of this study was to evaluate the effects of extreme winter conditions on the mortality of the Pacific oyster in Scandinavia. The study was done by compiling mortality data from independent surveys in Denmark, Sweden and Norway. Winter mortality of the oysters increased with latitude, which can be explained by the colder climate experienced at higher latitudes. Mortality was also found to be affected by site specific conditions such as water depth at the sampling sites of oyster populations. Despite the severe winter conditions of 2009/2010 causing high
mortality, the Pacific oyster still exists in large numbers in Scandinavia. The present investigation indicates that extreme winter conditions may result in a temporary reduction of the density of the Pacific oyster, but that the species can be expected to continue its invasion of Scandinavian coastal areas

Original language	English
Journal	Aquatic Invasions
Volume	7
Issue number	3
Pages (from-to)	433-440
ISSN	1818-5487
DOIs	https://doi.org/10.3391/ai.2012.7.3.014
Publication status	Published - 2012

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Strand, Å., Blanda, E., Bodvin, T., Davids, J. K., Fast Jensen, L., Holm-Hansen, T. H., Hjelmert, A., Lindegarth, S., Mortensen, S., Moy, F. E., Nielsen, P., Norling, P., Nyberg, C., Christensen, H. T., Vismann, B., Wejlemann Holm, M., Winding Hansen, B., & Dolmer, P. (2012). Impact of an icy winter on the Pacific oyster (Crassostrea gigas Thunberg, 1793) populations in Scandinavia. Aquatic Invasions, 7(3), 433-440. https://doi.org/10.3391/ai.2012.7.3.014

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title = "Impact of an icy winter on the Pacific oyster (Crassostrea gigas Thunberg, 1793) populations in Scandinavia",

abstract = "The Pacific oyster (Crassostrea gigas) is an invasive species that has dispersed into Scandinavia during the last few decades. The objective of this study was to evaluate the effects of extreme winter conditions on the mortality of the Pacific oyster in Scandinavia. The study was done by compiling mortality data from independent surveys in Denmark, Sweden and Norway. Winter mortality of the oysters increased with latitude, which can be explained by the colder climate experienced at higher latitudes. Mortality was also found to be affected by site specific conditions such as water depth at the sampling sites of oyster populations. Despite the severe winter conditions of 2009/2010 causing high mortality, the Pacific oyster still exists in large numbers in Scandinavia. The present investigation indicates that extreme winter conditions may result in a temporary reduction of the density of the Pacific oyster, but that the species can be expected to continue its invasion of Scandinavian coastal areas ",

author = "{\AA}sa Strand and Elisa Blanda and Torjan Bodvin and Davids, {Jens K.} and {Fast Jensen}, Lasse and Holm-Hansen, {Tore Hejl} and Anders Hjelmert and Susanne Lindegarth and Stein Mortensen and Moy, {Frithjof E.} and Pernille Nielsen and Pia Norling and Carlo Nyberg and Christensen, {Helle Torp} and Bent Vismann and {Wejlemann Holm}, Mark and {Winding Hansen}, Benny and Per Dolmer",

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doi = "10.3391/ai.2012.7.3.014",

language = "English",

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pages = "433--440",

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Strand, Å, Blanda, E, Bodvin, T, Davids, JK, Fast Jensen, L, Holm-Hansen, TH, Hjelmert, A, Lindegarth, S, Mortensen, S, Moy, FE, Nielsen, P, Norling, P, Nyberg, C, Christensen, HT, Vismann, B, Wejlemann Holm, M, Winding Hansen, B & Dolmer, P 2012, 'Impact of an icy winter on the Pacific oyster (Crassostrea gigas Thunberg, 1793) populations in Scandinavia', Aquatic Invasions, vol. 7, no. 3, pp. 433-440. https://doi.org/10.3391/ai.2012.7.3.014

TY - JOUR

T1 - Impact of an icy winter on the Pacific oyster (Crassostrea gigas Thunberg, 1793) populations in Scandinavia

AU - Strand, Åsa

AU - Blanda, Elisa

AU - Bodvin, Torjan

AU - Davids, Jens K.

AU - Fast Jensen, Lasse

AU - Holm-Hansen, Tore Hejl

AU - Hjelmert, Anders

AU - Lindegarth, Susanne

AU - Mortensen, Stein

AU - Moy, Frithjof E.

AU - Nielsen, Pernille

AU - Norling, Pia

AU - Nyberg, Carlo

AU - Christensen, Helle Torp

AU - Vismann, Bent

AU - Wejlemann Holm, Mark

AU - Winding Hansen, Benny

AU - Dolmer, Per

PY - 2012

Y1 - 2012

N2 - The Pacific oyster (Crassostrea gigas) is an invasive species that has dispersed into Scandinavia during the last few decades. The objective of this study was to evaluate the effects of extreme winter conditions on the mortality of the Pacific oyster in Scandinavia. The study was done by compiling mortality data from independent surveys in Denmark, Sweden and Norway. Winter mortality of the oysters increased with latitude, which can be explained by the colder climate experienced at higher latitudes. Mortality was also found to be affected by site specific conditions such as water depth at the sampling sites of oyster populations. Despite the severe winter conditions of 2009/2010 causing high mortality, the Pacific oyster still exists in large numbers in Scandinavia. The present investigation indicates that extreme winter conditions may result in a temporary reduction of the density of the Pacific oyster, but that the species can be expected to continue its invasion of Scandinavian coastal areas

AB - The Pacific oyster (Crassostrea gigas) is an invasive species that has dispersed into Scandinavia during the last few decades. The objective of this study was to evaluate the effects of extreme winter conditions on the mortality of the Pacific oyster in Scandinavia. The study was done by compiling mortality data from independent surveys in Denmark, Sweden and Norway. Winter mortality of the oysters increased with latitude, which can be explained by the colder climate experienced at higher latitudes. Mortality was also found to be affected by site specific conditions such as water depth at the sampling sites of oyster populations. Despite the severe winter conditions of 2009/2010 causing high mortality, the Pacific oyster still exists in large numbers in Scandinavia. The present investigation indicates that extreme winter conditions may result in a temporary reduction of the density of the Pacific oyster, but that the species can be expected to continue its invasion of Scandinavian coastal areas

U2 - 10.3391/ai.2012.7.3.014

DO - 10.3391/ai.2012.7.3.014

M3 - Journal article

SN - 1818-5487

VL - 7

SP - 433

EP - 440

JO - Aquatic Invasions

JF - Aquatic Invasions

IS - 3

ER -

Impact of an icy winter on the Pacific oyster (Crassostrea gigas Thunberg, 1793) populations in Scandinavia

Abstract

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