Chlorophyll-a in the rivers of eastern England

The Science of the Total Environment
Colin NealHeather Wickham

Abstract

Chlorophyll-a concentration variations are described for two major river basins in England, the Humber and the Thames and related to catchment characteristics and nutrient concentrations across a range of rural, agricultural and urban/industrial settings. For all the rivers there are strong seasonal variations, with concentrations peaking in the spring and summer time when biological activity is at its highest. However, there are large variations in the magnitude of the seasonal effects across the rivers. For the spring-summer low-flow periods, average concentrations of chlorophyll-a correlate with soluble reactive phosphorus (SRP). Chlorophyll-a is also correlated with particulate nitrogen (PN), organic carbon (POC) and suspended sediments. However, the strongest relationships are with catchment area and flow, where two straight line relationships are observed. The results indicate the importance of residence times for determining planktonic growth within the rivers. This is also indicated by the lack of chlorophyll-a response to lowering of SRP concentrations in several of the rivers in the area due to phosphorus stripping of effluents at major sewage treatment works. A key control on chlorophyll-a concentration may be the in...Continue Reading

References

Jun 10, 2000·The Science of the Total Environment·A A MehargD Osborn
Jun 10, 2000·The Science of the Total Environment·A A MeharD Osborn
Jun 10, 2000·The Science of the Total Environment·C NealM Harrow
Feb 16, 2002·The Science of the Total Environment·Helen P JarviAlison Love
Feb 21, 2002·The Science of the Total Environment·Paul J A Withers, Eunice I Lord
Feb 5, 2003·Environmental Science & Technology·Jules N PrettyRachael Dils
May 24, 2005·The Science of the Total Environment·Colin NealHeather Wickham
Apr 4, 2006·The Science of the Total Environment·Andrew J Wade
Apr 29, 2006·The Science of the Total Environment·John HiltonJ Iwan Jones
May 16, 2006·The Science of the Total Environment·Andrew J Wade

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Citations

Sep 26, 2013·Environmental Monitoring and Assessment·Davi Gasparini Fernandes CunhaWalter Kennedy Dodds
Sep 29, 2011·The Science of the Total Environment·J J C DawsonM I Stutter
Nov 1, 2011·The Science of the Total Environment·M J BowesA C Singer
Jun 10, 2009·The Science of the Total Environment·Andrew C JohnsonRichard J Williams
Sep 23, 2008·The Science of the Total Environment·P J A Withers, H P Jarvie
Jul 23, 2008·The Science of the Total Environment·Paul FranklinPaul Whitehead
May 16, 2006·The Science of the Total Environment·Andrew J Wade
Jan 28, 2018·Environmental Monitoring and Assessment·M E BazzuriL C Solari
Jan 8, 2021·Environmental Science and Pollution Research International·Lisha ShenBaiheng Yang
Aug 4, 2021·Environmental Science & Technology·Paulina Orlińska-WoźniakPaweł Wilk

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