Analysis of the spatial evolution of the 2003 algal bloom in the Voordelta (North Sea) |
| |
| Authors: | Hendrik Jan van der Woerd Anouk Blauw Louis Peperzak Reinold Pasterkamp Steef Peters |
| |
| Institution: | 1. CFE, Center for Functional Ecology, Department of Life Sciences, University of Coimbra, Apartado 3046, 3001-401 Coimbra, Portugal;2. Department of Chemistry & Center for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal;3. School of Technology and Management, Polytechnic of Viana do Castelo, Avenida do Atlântico, 4900-348 Viana do Castelo, Portugal;1. Institut de Recerca de la Biodiversitat, Departament de Biologia Animal, Universitat de Barcelona, Avinguda Diagonal 643, 08028 Barcelona, Spain;2. IRTA, Aqüicultura, Cultius Aquàtics, 43540 Sant Carles de la Ràpita, Tarragona, Spain;3. c/Nou 8, 43839 Creixell, Tarragona, Spain;1. Wageningen Marine Research, Wageningen University & Research, PO Box 77, 4400 AB Yerseke, the Netherlands;2. Wageningen Marine Research, Wageningen University & Research, PO Box 57, 1780 AB Den Helder, the Netherlands;3. Wageningen University, Aquatic Ecology and Water Quality Management Group, Droevendaalsesteeg 3a, 6708 PD Wageningen, the Netherlands;4. Bureau Waardenburg, PO Box 365, 4100 AJ Culemborg, the Netherlands |
| |
| Abstract: | Phaeocystis blooms in the Southern Bight of the North Sea may cause damage to the aquatic ecosystem and to commercial mussel cultures at the entrance of the Oosterschelde estuary. In this paper the potential for early detection of Phaeocystis blooms in Dutch coastal waters is studied, using a combination of field data, satellite observations and hydrodynamic- and biological modelling. For the spring bloom period in the year 2003 MERIS chlorophyll-a maps, derived with the HYDROPT algorithm for coastal waters, were compared to in-situ measurements at stations off the coast in de Voordelta and the results of the GEM biogeochemical model.The analysis shows that the spatial and temporal variability in Phaeocystis abundance and total biomass (expressed by the Chl-a concentration) during spring is large. It is confirmed that blooms may develop off shore and show a tendency to accumulate within 10 km from the coastline, giving rise to rapid biomass accumulation at the mouth of the multiple estuaries in the Voordelta. Based on the outcome of this study an early warning system is proposed that notifies local water managers and shellfish growers for potentially harmful Phaeocystis bloom formation. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
