European Diatom Database
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Dataset information

UK meres TP dataset

EDDI dataset codeSCM
Dataset typeTP
Number of samples33
Collection date1993
ContributorHelen Bennion
ContactHelen Bennion

This dataset includes 33 lakes from the Cheshire and Shropshire meres region of the English Midlands. They are all relatively small, shallow, lowland waterbodies. All lakes are alkaline and nutrient-rich with base-rich geology. Surface sediment samples were collected during February 1993 by University College London and diatoms were counted by Helen Bennion. These sites form part of a larger diatom-total phosphorus training set of 152 NW European lakes (Bennion et al., 1996) and have also been used to develop a chironomid-total phosphorus inference model (Brooks et al., 2001). Palaeolimnological studies have been undertaken at a number of these sites (e.g. Bennion et al., 1997, Brooks et al., 2001).

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  • Summary of environmental data for this dataset:
    VariableUnitsNMinMaxMean
    Alkalinity畫q/l3345042802541
    Calcium畫q/l3339148402858
    Chloraphyll-a痢/l188.462.923.8
    Chloride畫q/l3345018381077
    Conductivity猶/cm33118724461
    Magnesium畫q/l3313523401079
    Maximum depth of lakem330.929.57.08
    Nitrate痢/l333076201768
    pHpH units337.098.217.7
    Potassium畫q/l3341.5496163
    Secchi depthm330.43.11.22
    Silicamg/l330.258.313.66
    Sodium畫q/l333121389738
    Soluable reactive phosphorus痢/l334.73907141
    Sulphate畫q/l3311431191164
    Total phosphorus痢/l3372.91169289
    Water depth of diatom samplem330.929.57.08