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Chlorophyll A production modelling of inshore waters
Hartnett, M. (2005). Chlorophyll A production modelling of inshore waters, in: Wilson, J.G. (Ed.) The intertidal ecosystem: the value of Ireland’s shores. pp. 147-164
In: Wilson, J.G. (Ed.) (2005). The intertidal ecosystem: the value of Ireland’s shores. Royal Irish Academy: Dublin. ISBN 1-904890-09-1. 206 pp.
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| Abstract |
Increased anthropogenic activity in many coastal regions is placing significant pressures on inshore waters. Many of the estuaries and bays accepting the discharges from large conurbations are heavily polluted preventing their use for recreational activities. The relatively poor water quality in parts of Dublin Bay and Cork Harbour are examples of adversely impacted waters. Discharges of nutrients, in particular, through outfalls and rivers can lead to the occurrence of algal blooms with the associated environmental problems. Computer-based models have been developed to investigate the relationships between nutrient inputs and chlorophyll a production in inshore waters. These models have been applied to Cork Harbour and used to perform scenario modelling. Two scenarios are simulated using the models: the first considers the effects of discharging significant nutrient loads into Cork Harbour, and the second scenario considers the water quality when there are no discharges from domestic and industrial outfalls. Good agreement was obtained between model predicted chlorophyll a and measured data. There is significant reduction in chlorophyll a production during the latter simulation, primarily due to the reduced phosphorus loads. The application of the model to Cork Harbour illustrates how spatially and temporally refined models can be used to assist total water quality management of inshore waters. |
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