Climate Change Impacts on Dissolved Oxygen Concentration in Marine and Coastal Waters around the UK and Ireland
"What is already happening
- Since the 1960s, the global oceanic oxygen content has declined by more than 2%.
- Sustained observations in the North Sea reveal the recent onset of oxygen deficiency in late summer, partly due to ocean warming. The intensity and extent of oxygen deficiency has also increased over time. [...]".
Source: Marine Climate Change Impacts Partnership
Authors: Claire Mahaffey et al.
Offshore wind farms are projected to impact primary production and bottom water deoxygenation in the North Sea
"The wind wake effect of offshore wind farms affects the hydrodynamical conditions in the ocean, which has been hypothesized to impact marine primary production. So far only little is known about the ecosystem response to wind wakes under the premisses of large offshore wind farm clusters. Here we show, via numerical modeling, that the associated wind wakes in the North Sea provoke large-scale changes in annual primary production with local changes of up to ±10% not only at the offshore wind farm clusters, but also distributed over a wider region. [...]".
Authors: Ute Daewel et al.
Spatial variations in sedimentary N-transformation rates in the North Sea (German Bight)
"In this study, we investigate the role of sedimentary N cycling in the southern North Sea. We present a budget of ammonification, nitrification and sedimentary NO−3 consumption and denitrification in contrasting sediment types of the German Bight (southern North Sea), including novel net ammonification rates. [...]"
Authors: Alexander Bratek et al.
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