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Environmental Sciences Research Institute
Oxygen depletion in lakes
Brian Rippey and Brian Foley (and Stephen Maberly and Ian Jones, Centre for Ecology and Hydrology, Lancaster)
In this project, the model for oxygen depletion in lakes that was developed by Rippey & McSorley (2009) (Limnology & Oceanography 54, 905-916) is being extended and its wider value assessed. More lakes with high depletion rates were needed to make the model more widely applicable and so five such lakes in Northern Ireland were visited weekly from March to June and the oxygen-depth profiles recorded; Fig. 1 shows one of these lakes, Brantry Lough These additional results have not altered the model significantly. The model is being assessed using long-term results from two of the English Lake District lakes, Blelham Tarn and Lake Windermere. This is possible because the partners in this research, the Centre for Ecology and Hydrology, Lancaster, and the funders, the Freshwater Biological Association, hold these long-term data. As the results start in 1947, the effects of climate change can be seen in that the period over which deoxygenation can occur is now longer