f6b9b2b3-1ad0-4ac1-a19b-bb340427fbf1 English ISO/IEC 8859-1 (also known as Latin 1) dataset dataset NERC EDS Environmental Information Data Centre Lancaster Environment Centre, Library Avenue, Bailrigg Lancaster LA1 4AP UK info@eidc.ac.uk https://eidc.ac.uk/ EIDC website The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences. information pointOfContact 2025-11-13T16:23:27 UK GEMINI 2.3 OSGB 1936 / British National Grid Freshwater macroinvertebrate family abundances in spring and autumn, England, 2002-2019 2023-07-20 publication https://catalogue.ceh.ac.uk/id/f6b9b2b3-1ad0-4ac1-a19b-bb340427fbf1 10.5285/f6b9b2b3-1ad0-4ac1-a19b-bb340427fbf1 doi: Powell, K. (2023). Freshwater macroinvertebrate family abundances in spring and autumn, England, 2002-2019. NERC EDS Environmental Information Data Centre 10.5285/f6b9b2b3-1ad0-4ac1-a19b-bb340427fbf1 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 Powell, K. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-6089-0872 ORCID record 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. information pointOfContact Powell, K. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-6089-0872 ORCID record 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. information author NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian NERC EDS Environmental Information Data Centre info@eidc.ac.uk publisher University of Reading EMAIL NOT PROVIDED owner Environment Agency EMAIL NOT PROVIDED owner Environmental Monitoring Facilities theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Ephemeroptera Plecoptera Hemiptera Megaloptera Odonata Coleoptera Trichoptera Turbellaria Annelida Crustacea Diptera Mollusca Wikidata 2012-10-29 creation Water quality Macroinvertebrates Freshwater mayflies stoneflies caddis flies dragonflies damselflies worms otherRestrictions no limitations otherRestrictions Contains data supplied by the Environment Agency © Environment Agency copyright and/or database right 2020. All rights reserved. otherRestrictions This resource is available under the terms of the Open Government Licence otherRestrictions 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 textTable 1 English utf8 environment biota 2002-03-01 2019-11-30 -6.452 1.768 49.864 55.812 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://catalogue.ceh.ac.uk/datastore/eidchub/f6b9b2b3-1ad0-4ac1-a19b-bb340427fbf1 Download the data Download a copy of this data fileAccess https://data-package.ceh.ac.uk/sd/f6b9b2b3-1ad0-4ac1-a19b-bb340427fbf1.zip Supporting information Supporting information available to assist in re-use of this dataset information dataset dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 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.