TRPI.pdf (1.19 MB)
Macroinvertebrate community structure as an indicator of phosphorus enrichment in rivers
journal contribution
posted on 2019-10-18, 08:32 authored by Nicholas C. Everall, Matthew F. Johnson, Paul WoodPaul Wood, Martin F. Paisley, David J. Trigg, Andrew FarmerNutrient enrichment represents one of the most important causes of detriment to river ecosystem health globally. Monitoring nutrient inputs can be particularly challenging given the spatial and temporal heterogeneity of nitrogen and phosphorus concentrations and the indirect and often lagged effects on instream communities. The objective of this paper was to explore the association between family level macroinvertebrate community data and Total Reactive Phosphorus (TRP). To achieve this, a biological index for phosphorus sensitivity (Total Reactive Phosphorus Index – TRPI) was developed and tested utilising invertebrate community and chemical data from two datasets, one consisting 88 sites across England and the other 76 sites, both sampled in spring and autumn using the same methodology between 2013 and 2015. There was a significant association between TRPI and TRP concentrations that was stronger than other biological indices of elevated phosphorus, including the TDI (diatoms) and MTR (macrophytes), currently available in the UK. Additional testing and validation are presented via local case studies, where results indicate that macroinvertebrate family sensitivity is dependent upon a range of abiotic factors including season (time of year), benthic substrate composition, altitude, and water alkalinity.
History
School
- Social Sciences
Department
- Geography and Environment
Published in
Ecological IndicatorsVolume
107Publisher
ElsevierVersion
- AM (Accepted Manuscript)
Rights holder
© Elsevier Ltd.Publisher statement
This paper was accepted for publication in the journal Ecological Indicators and the definitive published version is available at https://doi.org/10.1016/j.ecolind.2019.105619.Acceptance date
2019-08-04Publication date
2019-08-19Copyright date
2019ISSN
1470-160XPublisher version
Language
- en
Depositor
Prof Paul Wood. Deposit date: 17 October 2019Article number
105619Usage metrics
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