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  3. Freshwater river diatom surveys (Biosys)

Freshwater river diatom surveys (Biosys)

Summary

The Environment Agency undertakes freshwater and marine biological monitoring in England. This dataset contains site, sample, metric and taxa information from freshwater river diatom (algae) surveys carried out across England from 1993 onwards. Notes: - These survey data are stored in an archive more commonly known as BIOSYS. - This dataset contains Freshwater, River diatom surveys only. - Pollution Samples are excluded from the dataset. - The TDI4 calculations in this dataset were updated in 2017 to correct errors discovered in 2016.

Use limitation statement

There are no public access constraints to this data. Use of this data is subject to the licence identified.

Attribution statement

© Environment Agency copyright and/or database right 2020. All rights reserved.

Technical information

Update frequency

quarterly

Lineage

This dataset is derived from Biosys and contains all freshwater, river diatom surveys. The data are split into three subsets: Site, metric and taxa information.

Spatial information

Geographic extent

  • Latitude from: 49.943 to 55.816
  • Longitude from: -6.236 to 2.072
Metadata information

Language

English

Metadata identifier

fc2638d3-8a67-4d17-8f6e-7d72d8e2244e


Published by

Environment Agency

Contact publisher

Defra Data Services Forum

Dataset reference dates

Creation date

01 November 2019

Revision date

04 May 2020

Publication date

N/A

Period

  • From: 04 June 1993
  • To: 04 May 2020

Search

Data and Supporting Information
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Full downloads and supporting documentationFormatAction
Freshwater_river_diatom_surveys_(Biosys).pdfPDFDownload