Freshwater macroinvertebrate family abundances in spring and autumn, England, 2002-2019
This data file contains processed data derived from the Environment Agency's Ecology and Fish Explorer Macroinvertebrate database. The recorded data is the abundance of freshwater macroinvertebrates taken by the Environment Agency (EA). The data were collected from sites throughout England, between 2002-2019, from March to May, and September to November. Samples were collected using three-minute kick-samples, whereby a net is used to catch invertebrates and debris flowing downstream of an area in a river which is disturbed by a recorder for three minutes. Data before 2002 were excluded as abundance of macroinvertebrates was not recorded widely before this year. The data were originally collected for the purpose of understanding water quality by the Environment Agency. The original EA data contains raw counts of mixed-taxonomic groupings of invertebrates and some diatoms and other taxa, from rivers in England with multiple sampling methodologies. Here, the derived data has been processed in such a way to combine counts at a single taxonomic level (family) containing only taxonomic groups of interest for the research, and the data are limited to one sampling method. Full details about this dataset can be found at https://doi.org/10.5285/f6b9b2b3-1ad0-4ac1-a19b-bb340427fbf1
dataset
https://catalogue.ceh.ac.uk/datastore/eidchub/f6b9b2b3-1ad0-4ac1-a19b-bb340427fbf1
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https://data-package.ceh.ac.uk/sd/f6b9b2b3-1ad0-4ac1-a19b-bb340427fbf1.zip
name: Supporting information
description: Supporting information available to assist in re-use of this dataset
function: information
https://catalogue.ceh.ac.uk/id/f6b9b2b3-1ad0-4ac1-a19b-bb340427fbf1
doi:
eng
environment
biota
Environmental Monitoring Facilities
publication
2008-06-01
-6.452
1.768
55.812
49.864
2002-03-01
2019-11-30
publication
2023-07-20
This data has been processed in the following manner: * Data from all EA sampling regions (Anglian, Midlands, Northeast, Northwest, Southern, Southwest and Thames) have been combined into one data file * Samples taken outside of the Spring (March-May inclusive) and Autumn (September-November inclusive) were removed * Data were restricted to three-minute kick samples only (meaning 'dredge' samples were removed) * All data taken before 2002 were removed * Only data classified in the following taxa by the EA were retained: Ephemeroptera, Plecoptera, Hemiptera, Megaloptera, Odonata, Coleoptera, Trichoptera, Turbellaria, Annelida, Crustacea, Diptera and Mollusca * Total abundance of macroinvertebrates per Sample ID were summed at the family-level within these taxa * Eleven samples with anomalous abundance counts for a taxonomic group were removed from the data * The number of sampling occurrences was calculated for each site-season-year combination, and only sites where samples had been taken in both spring and autumn at least once for a minimum of three years in the remaining time series (2002-2019) were retained. The data have been pooled by family and wider taxonomic groupings.
publication
2010-12-08
Comma-separated values (CSV)
Contains data supplied by the Environment Agency © Environment Agency copyright and/or database right 2020. All rights reserved.
If you reuse this data, you should cite: Powell, K. (2023). Freshwater macroinvertebrate family abundances in spring and autumn, England, 2002-2019. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/f6b9b2b3-1ad0-4ac1-a19b-bb340427fbf1
https://orcid.org/0000-0002-6089-0872
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description: ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers.
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pointOfContact
https://orcid.org/0000-0002-6089-0872
name: ORCID record
description: ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers.
function: information
author
custodian
publisher
University of Reading
owner
Environment Agency
owner
Lancaster Environment Centre, Library Avenue, Bailrigg
Lancaster
LA1 4AP
UK
name: EIDC website
description: The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences.
function: information
pointOfContact
2025-03-21T13:34:57