Spatial variability in growth and reproduction of the Pacific oyster Crassostrea gigas (Thunberg, 1793) along the west European coast

Cardoso, Joana; Langlet, Denis; Loff, José F.; Martins, Ana; Witte, Johannes Ij.; Santos, Paulo; Veer, Henk W. van der

doi:10.1016/j.seares.2006.11.003

Cited by 63 publications

(47 citation statements)

References 41 publications

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“…In species like C. gigas, having an "r" demographical strategy, characterized by high fecundity, reproductive success is greatly dependent on the quantity of gametes produced, especially oocytes, as well as their quality. Furthermore, Cardoso et al [80] found that in Northern European locations, oysters produce smaller eggs in larger quantities, suggesting an increasing reproductive output. The authors proposed that, since smaller oocytes are thought to have a longer development time, the environmental conditions along the Northern European coasts may result in increased larval dispersal and possibly in further population expansion.…”

Section: Sex-ratio and Population Expansionmentioning

confidence: 99%

Additive transcriptomic variation associated with reproductive traits suggest local adaptation in a recently settled population of the Pacific oyster, Crassostrea gigas

et al. 2015

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Section: Sex-ratio and Population Expansionmentioning

confidence: 99%

Additive transcriptomic variation associated with reproductive traits suggest local adaptation in a recently settled population of the Pacific oyster, Crassostrea gigas

et al. 2015

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“…This oyster that was originally introduced in the Netherlands for the purpose of cultivation during the 1960s might be considered nowadays as an invasive species, which massively colonize all kind of substrates in the Eastern Scheldt (Escaravage et al 2006;Troost et al 2009). This species has indeed been shown as being able to develop huge biomasses when conditions are favorable (Cardoso et al 2007). C. gigas has been observed at several locations in Lake Veere since 1996 (Escaravage et al 2006;Van Avesaath et al 2008b) but the total biomass did not increase after the restoration measure in such proportions that effects on water transparency should be expected yet.…”

Section: Effects Of the Restoration Measure On The Water Qualitymentioning

confidence: 99%

The Decline and Restoration of a Coastal Lagoon (Lake Veere) in the Dutch Delta

Wijnhoven

Escaravage

Daemen³

et al. 2009

Estuaries and Coasts

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The former tidal inlet Lake Veere was turned into a stagnant brackish lake in 1961. Ever since, the system has shown a continuous degradation. The current study shows the monitoring results for the macrozoobenthic communities and the abiotic conditions for the period 1990-2008. This includes the first step to remediation, the restoration of the exchange between the tidal marine Eastern Scheldt and Lake Veere in 2004. A continuous decline in water clearance co-occurring with decreasing macrofauna densities and richness was observed till 2004. Water quality (e.g., secchi depth, nutrient levels, and oxygen conditions) improved significantly after the measure at a higher salinity level with less variation. But the macrofauna densities, biomass, and diversity did not improve yet. First indications of changes in the benthic communities by arrival of new and returning species are however observed and show that restoration at macrofauna level follows the improved abiotic conditions with a delay of several years.

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“…It has been introduced for aquaculture purposes in many countries and today, the oyster is almost worldwide distributed including the Wadden Sea (Ruesink et al, 2005;Diederich, 2005Diederich, , 2006Cardoso et al, 2007;Padilla, 2010;Troost, 2010;Van der Zee et al, 2012). Here, first free-living Pacific oysters were detected on beds of blue mussels (Mytilus edulis L.) in the 1980s Troost, 2010).…”

Section: Introductionmentioning

confidence: 99%

Deeply hidden inside introduced biogenic structures – Pacific oyster reefs reduce detrimental barnacle overgrowth on native blue mussels

Buschbaum

Cornelius

Goedknegt

2016

Journal of Sea Research

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In sedimentary coastal ecosystems shells of epibenthic organisms such as blue mussels (Mytilus edulis) provide the only major attachment surface for barnacle epibionts, which may cause detrimental effects on their mussel basibionts by e.g. reducing growth rate. In the European Wadden Sea, beds of native blue mussels have been invaded by Pacific oysters Crassostrea gigas, which transformed these beds into mixed reefs of oysters with mussels. In this study, we determined the spatial distribution of M. edulis and their barnacle epibionts (Semibalanus balanoides) within the reef matrix. Mean mussel density near the bottom was about twice as high compared to the mussel density near the top of an oyster reef, whereas barnacles on mussels showed a reversed pattern. Barnacle dry weight per mussel was on average 14 times higher near the top than at the bottom. This pattern was confirmed by experimentally placing clean M. edulis at the top and on the bottom of oyster reefs at two sites in the Wadden Sea (island of Texel, The Netherlands; island of Sylt, Germany). After an experimental period of five weeks (April and May 2015, the main settlement period of S. balanoides), the number of barnacles per mussel was at both sites significantly higher on mussels near the top compared to near the bottom. We conclude that the oyster reef matrix offers a refuge for M. edulis: inside reefs they are not only better protected against predators but also against detrimental barnacle overgrowth. This study shows that alien species can cause beneficial effects for native organisms and should not be generally considered as a risk for the recipient marine ecosystems.

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Spatial variability in growth and reproduction of the Pacific oyster Crassostrea gigas (Thunberg, 1793) along the west European coast

Cited by 63 publications

References 41 publications

Additive transcriptomic variation associated with reproductive traits suggest local adaptation in a recently settled population of the Pacific oyster, Crassostrea gigas

Additive transcriptomic variation associated with reproductive traits suggest local adaptation in a recently settled population of the Pacific oyster, Crassostrea gigas

The Decline and Restoration of a Coastal Lagoon (Lake Veere) in the Dutch Delta

Deeply hidden inside introduced biogenic structures – Pacific oyster reefs reduce detrimental barnacle overgrowth on native blue mussels

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