WFD Cycle 2 TraC invertebrates classification
This dataset is a subset of "WFD Classification Status Cycle 2" and contains classification data for benthic invertebrates in transitional and coastal waters. Benthic invertebrates are small animals (for example, worms, sand hoppers and clams) that live in the mud and sand at the bottom of the estuary or sea. They can be used to indicate the ecological status of a waterbody. Metrics on species composition and disturbance sensitivity are calculated with the IQI classification tool. The actual (observed) scores for these metrics are compared with a predicted score (reflecting a habitat in pristine condition). The comparison of the observed to expected scores is known as an Ecological Quality Ratio (EQR). EQRs are used to produce a benthic invertebrate IQI classification (High, Good, Moderate, Poor, Bad) of the water body for Water Framework Directive (WFD) purposes. Attribution statement: © Environment Agency copyright and/or database right 2015. All rights reserved.
dataset
https://environment.data.gov.uk/datafiles/f5784ef5c29f450abf08beb7befe897b
protocol: WWW:LINK-1.0-http--link
name: Data_download_link
description: Data download link
https://support.environment.data.gov.uk/hc/en-gb
protocol: http:
name: DSP_CUSTOMER_FORUM
description: DEFRA Data Services Platform Customer Forum
287412ef-6613-4430-95cd-0a7b424d20b5
eng
http://www.opengis.net/def/crs/EPSG/0/27700
environment
OpenData
EC Directive
water quality
publication
2010-01-13
-6.236
2.072
55.816
49.943
http://data.ordnancesurvey.co.uk/doc/country/england
2015-12-02
creation
2015-12-09
annually
The Water Framework Directive classification system is risk based and focuses on where there is likely to be a problem. It uses a principle known as "one out, all out", which means the poorest individual results drive the overall classification for a water body. It reports on over 30 quality elements, grouped into ecological status and chemical status. Ecological status includes physico-chem (e.g. nutrients, pH, dissolved oxygen, ammonia) , biological elements (e.g. phytoplankton, macroalgae, fish, invertebrates) , specific pollutants (e.g. metals and compounds, organic compounds) , hydromorphology (e.g. depth, width, flow, structure). Chemical status is assessed using priority substances, priority hazardous substances and other pollutants that present a significant risk to the water environment.
Proprietary format | MS Excel (XLS)
Unknown
Open Government Licence
There are no public access constraints to this data. Use of this data is subject to the licence identified.
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
https://support.environment.data.gov.uk/hc/en-gb
description: Defra Data Services Forum
pointOfContact
Environment Agency
metadata@environment-agency.gov.uk
pointOfContact
2020-09-29