Tracing lake trophic history with a chironomid-total phosphorus inference model

1. In the absence of historical water chemistry data, predictive biological indicator groups preserved in lake sediments can be employed to reconstruct the history of lake eutrophication. Diatoms are well established in this role, but to augment diatom‐based inferences of nutrient status we investig...

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Bibliographic Details
Published in:Freshwater biology 2001-04, Vol.46 (4), p.513-533
Main Authors: Brooks, Stephen J., Bennion, Helen, Birks, H. John B.
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
British Isles
Chironomidae
eutrophication
Fresh water ecosystems
Freshwater
Fundamental and applied biological sciences. Psychology
midges
Synecology
transfer function
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Summary:1. In the absence of historical water chemistry data, predictive biological indicator groups preserved in lake sediments can be employed to reconstruct the history of lake eutrophication. Diatoms are well established in this role, but to augment diatom‐based inferences of nutrient status we investigate the potential use of chironomid midges (Insecta: Chironomidae). 2. Canonical correspondence analysis (CCA) of modern chironomid assemblages in surface sediments from 44 lakes in the English Midlands and Wales, U.K., shows that five environmental variables (total phosphorus (TP), bottom dissolved oxygen, maximum lake depth, Secchi depth and surface water temperature) make a statistically significant (P 
ISSN:0046-5070
1365-2427
DOI:10.1046/j.1365-2427.2001.00684.x