Freshwater river macrophyte surveys (Biosys)
The Environment Agency undertakes freshwater and marine biological monitoring in England. This dataset contains site, sample, metric and taxa information from freshwater river macrophyte (plant) surveys carried out across England from 1980 onwards. Notes: - These survey data are stored in an archive more commonly known as BIOSYS. - This dataset contains Freshwater, River Macrophyte surveys only. - Pollution Samples are excluded from the dataset. - The River Macrophyte Nutrient Index and associated indices were updated in 2017 to correct errors discovered in 2016. - The River Macrophyte Hydraulic Index has not been updated. The field displays the value (which was correct) at the time the record was saved. If taxon values and hierarchies have been updated, since this date, an updated value will not be generated. As this value is used in a historic context it will not be updated in the future.
Use limitation statement
There are no public access constraints to this data. Use of this data is subject to the licence identified.
LicenceOpen Government Licence
© Environment Agency copyright and/or database right 2020. All rights reserved.
This dataset is derived from Biosys and contains all freshwater, river macrophyte surveys. The data are split into three subsets: Site, metric and taxa information.
Coordinate reference systemhttp://www.opengis.net/def/crs/EPSG/0/27700
- Latitude from: 49.943 to 55.816
- Longitude from: -6.236 to 2.072
Contact publisherDefra Data Services Forum
Dataset reference dates
01 November 2019
04 May 2020
- From: 12 September 1980
- To: 04 May 2020