Assessing the suitability of OSPAR EcoQOs for eutrophication vs ICES criteria for England and Wales.

This paper provides a preliminary evaluation of the suitability of OSPAR Ecological Quality objectives for eutrophication for coastal and offshore waters of England and Wales on the basis of ICES criteria. In principle, EcoQOs are easy to understand, but responses to nutrient enrichment are complex. Few studies provide unequivocal evidence of links between inputs and response. Monitoring is generally feasible and in place, but needs to be improved. The best EcoQO is winter nutrient concentrations. Chlorophyll concentrations are a good indicator in environments susceptible to nutrient enrichment. The EcoQO for zoobenthos/fish kills potentially meets all criteria for a good indicator; EcoQOs for phytoplankton indicator species, oxygen concentrations and zoobenthos changes do not. Greater emphasis needs to be placed on seasonal effects of nutrient inputs and phytoplankton response, natural susceptibility of different water bodies, differences between coastal and offshore environments, and developing longer time series of data.

[1]  Martin Edwards,et al.  Continuous plankton records: Plankton atlas of the North Atlantic Ocean (1958-1999). II. Biogeographical charts , 2004 .

[2]  R. Gowen,et al.  Predicting marine eutrophication: the yield of chlorophyll from nitrogen in Scottish coastal waters , 1992 .

[3]  Robin A. Clark.  Long-term changes in the North Sea ecosystem , 2001 .

[4]  The role of suspended matter in the distribution of dissolved inorganic phosphate, iron and aluminium in the Ems estuary , 1994, Netherland Journal of Aquatic Ecology.

[5]  Chris Ellegaard,et al.  Assessing Reference Conditions According to the European Water Framework Directive Using Modelling and Analysis of Historical Data: An Example from Randers Fjord, Denmark , 2003, Ambio.

[6]  S. Nixon.  Coastal marine eutrophication: A definition, social causes, and future concerns , 1995 .

[7]  R. Daan,et al.  The macrobenthic fauna in the Dutch sector of the North Sea in 2001 and a comparison with previous data , 1997 .

[8]  P. C. Reid,et al.  Pulses in the eastern margin current and warmer water off the north west European shelf linked to North Sea ecosystem changes , 2001 .

[9]  E. Wilson,et al.  Strategic Environmental Assessment , 1992 .

[10]  P. C. Reid,et al.  Phytoplankton of the North Sea and its dynamics: A review , 1990 .

[11]  R. Gowen,et al.  Regional differences in stratification and its effect on phytoplankton production and biomass in the northwestern Irish Sea , 1995 .

[12]  S I Rogers,et al.  A UK perspective on the development of marine ecosystem indicators. , 2005, Marine pollution bulletin.

[13]  G. Beaugrand.  Continuous Plankton records: Plankton Atlas of the North Atlantic Ocean (1958-1999). I. Introduction and methodology , 2004 .

[14]  Carol Janzen,et al.  Eutrophication and some European waters of restricted exchange , 2003 .

[15]  P. Scott Libby,et al.  Nutrient criteria technical guidance manual : estuarine and coastal marine waters , 2001 .

[16]  J. Hauxwell,et al.  Macroalgal blooms in shallow estuaries: Controls and ecophysiological and ecosystem consequences , 1997 .

[17]  G. Beaugrand.  I. Introduction and methodology , 2004 .

[18]  C. Gibson,et al.  Assessing trends in nutrient concentrations in coastal shelf seas: a case study in the Irish Sea. , 2002 .

[19]  D. B. Nedwell,et al.  Variations of the Nutrients Loads to the Mainland U.K. Estuaries: Correlation with Catchment Areas, Urbanization and Coastal Eutrophication , 2002 .

[20]  J. Cloern.  Our evolving conceptual model of the coastal eutrophication problem , 2001 .

[21]  R. Rosenberg,et al.  Macrobenthic succession in relation to organic enrichment and pollution of the marine environment , 1978 .

[22]  Martin Edwards,et al.  Periodic changes in the zooplankton of the North Sea during the twentieth century linked to oceanic inflow , 2003 .

[23]  S. Bricker,et al.  National estuarine eutrophication assessment: effects of nutrient enrichment in the nation's estuaries , 1999 .

[24]  R. Knust,et al.  The Dogger Bank: A special ecological region in the central North Sea , 1995, Helgoländer Meeresuntersuchungen.

[25]  M. Huxham,et al.  Science and Environmental Decision Making , 2000 .