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

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

doi:10.1007/s10530-009-9565-6

Cited by 51 publications

(29 citation statements)

References 15 publications

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“…This has been linked to a decline in farmed oyster performance over the last 10 years in France (Cognie et al ., ). The range expansion coincided with increasing summer seawater temperatures in the region, and C. gigas can now be found in uncultivated regions on the south coast of England, north‐east coast of Ireland, the French Atlantic coast, Norway and the Wadden Sea, where the dense intertidal hummocks of shell and live oysters can cause significant changes to the habitat structure (Figure b) (Nehls et al ., ; Syvret et al ., ; Dutertre et al ., ; Wrange et al ., ).…”

Section: Abundance Of Nuisance and Harmful Speciesmentioning

confidence: 97%

Review of climate change impacts on marine aquaculture in the UK and Ireland

Callaway

Shinn

Grenfell

et al. 2012

Aquatic Conservation

151

155

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1. Marine aquaculture relies on coastal habitats that will be affected by climate change. This review assesses current knowledge of the threats and opportunities of climate change for aquaculture in the UK and Ireland, focusing on the most commonly farmed species, blue mussels (Mytilus edulis) and Atlantic salmon (Salmo salar). 2. There is sparse evidence to indicate that climate change is affecting aquaculture in the UK and Ireland. Impacts to date have been difficult to discern from natural environmental variability, and the pace of technological development in aquaculture overshadows effects of climatic change. However, this review of broader aquaculture literature and the likely effects of climate change suggests that over the next century, climate change has the potential to directly impact the industry. 3. Impacts are related to the industry's dependence on the marine environment for suitable biophysical conditions. For instance, changes in the frequency and strength of storms pose a risk to infrastructure, such as salmon cages. Sea-level rise will shift shoreline morphology, reducing the areal extent of some habitats that are suitable for the industry. Changes in rainfall patterns will increase the turbidity and nutrient loading of rivers, potentially triggering harmful algal blooms and negatively affecting bivalve farming. In addition, ocean acidification may disrupt the early developmental stages of shellfish. 4. Some of the most damaging but least predictable effects of climate change relate to the emergence, translocation and virulence of diseases, parasites and pathogens, although parasites and diseases in finfish aquaculture may be controlled through intervention. The spread of nuisance and non-native species is also potentially damaging. 5. Rising temperatures may create the opportunity to rear warmer water species in theUKand Ireland. Market forces, rather than technical feasibility, are likely to determine whether existing farmed species are displaced by new ones

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Section: Abundance Of Nuisance and Harmful Speciesmentioning

confidence: 97%

Review of climate change impacts on marine aquaculture in the UK and Ireland

Callaway

Shinn

Grenfell

et al. 2012

Aquatic Conservation

151

155

View full text Add to dashboard Cite

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“…In invasive species, temperature is often seen as imposing the northern limit for spawning and, thus, as the factor limiting northward expansion (Diederich et al, 2005;Wrange et al, 2009). Spawning may occur in this context, but resorption occurs in other, cooler, years.…”

Section: Insight Gained From Modellingmentioning

confidence: 99%

Effect of phytoplankton and temperature on the reproduction of the Pacific oyster Crassostrea gigas: Investigation through DEB theory

Bernard

Kermoysan

Pouvreau

2011

Journal of Sea Research

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DEB theory can be used to obtain a detailed description of energy allocation in organisms and the control of this allocation by temperature and food concentration. In this study, we modified the model of Bourlès et al. (2009) developed for the Pacific oyster, Crassostrea gigas, to improve the description of reproductive effort. The model was amended in two ways: a new set of parameters was incorporated and a full description of gonad construction in spring was added, with a new state variable. The application of this model to a dataset for oyster growth measured in four bays over two years showed that this model better described reproductive effort, without modifying overall growth dynamics. We then explored the reproductive responses of oysters to their environment in greater detail, by applying this new version of the model with the theoretical forcing variables of phytoplankton concentration and temperature. Spawning time was found to be driving principally by yearly mean temperature, and reproductive effort was found to depend mostly on the half-saturation coefficient of the functional response. These results highlight the importance of the half-saturation coefficient and provide additional support for field research on the food preferences of oysters. Highlights ► We developed an improved version of the DEB model for Pacific oyster, C. gigas. ► This model is used to give a deep insight into the ecophysiology of reproduction and the ecology of this species. ► It gives another utilization of the DEB theory as a tool to better understand ecology processes.

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“…Pacific oysters (Crassostrea gigas) are now one of the most 'globalised' marine invertebrates and dominate bivalve production in many regions (Ruesink et al 2005;FAO 2016a, b). The oysters have been introduced to 66 countries outside their native range, mainly for aquaculture, and there are now established self-sustaining populations in at least 17 countries (Ruesink et al 2005;Smaal et al 2006;Cardoso et al 2007;Wrange et al 2010). Although of considerable importance for coastal economies around the world, the introduction of C. gigas has also been very significant in maintaining the oyster fishing and cultivation culture and traditions of communities that have previously relied on native oysters, which in many regions are now declining (Goulletquer and Heral 1997;Zu Ermgassen et al 2012;Humphreys et al 2014).…”

Section: Introductionmentioning

confidence: 99%

“…It is likely that a combination of factors enable wild establishment, including a lack of natural predators within receiving systems, beneficial traits such as rapid growth and rising air and sea temperatures as a result of global warming (see Troost 2010 for review). High temperatures appear to have caused an increased spawning frequency in parts of coastal Europe and wild settlement has occurred along much of the continental shoreline (Drinkwaard 1999;Reise et al 2005;Troost 2010;Wrange et al 2010;Hily 2005, 2011;Herbert et al 2012;Dolmer 2014). Oyster larvae are known to settle gregariously and to be attracted to conspecifics (Arakawa 1990;Tamburri and Zimmer 2007).…”

Section: Introductionmentioning

confidence: 99%

Ecological impacts of non-native Pacific oysters (Crassostrea gigas) and management measures for protected areas in Europe

et al. 2016

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Pacific oysters are now one of the most 'globalised' marine invertebrates. They dominate bivalve aquaculture production in many regions and wild populations are increasingly becoming established, with potential to displace native species and modify habitats and ecosystems. While some fishing communities may benefit from wild populations, there is now a tension between the continued production of Pacific oysters and risk to biodiversity, which is of particular concern within protected sites. The issue of the Pacific oyster therefore locates at the intersection between two policy areas: one concerning the conservation of protected habitats, the other relating to livelihoods and the socio-economics of coastal aquaculture and fishing communities. To help provide an informed basis for management decisions, we first summarise evidence for ecological impacts of wild Pacific oysters in representative coastal habitats. At local scales, it is clear that establishment of Pacific oysters can significantly alter diversity, community structure Communicated by David Hawksworth.

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

Cited by 51 publications

References 15 publications

Review of climate change impacts on marine aquaculture in the UK and Ireland

Review of climate change impacts on marine aquaculture in the UK and Ireland

Effect of phytoplankton and temperature on the reproduction of the Pacific oyster Crassostrea gigas: Investigation through DEB theory

Ecological impacts of non-native Pacific oysters (Crassostrea gigas) and management measures for protected areas in Europe

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