River Fly data

Sub-categories

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Headline data

River Fly data

Source: The Riverfly partnership - Anglers' Riverfly Monitoring Initiative

Unit of Measurement: River fly population (score)

This table provides metadata for the actual indicator available from Bristol statistics closest to the corresponding global SDG indicator. Please note that even when the global SDG indicator is fully available from Bristol statistics, this table should be consulted for information on national methodology and other Bristol-specific metadata information.

Indicator available

River Fly data
Indicator description

Population of river flies at various points of rivers
Geographical coverage
Unit of measurement

River fly population (score)
Definitions

Sample data of the population of river flies is converted to a score. If the cumculative score for an area dips below an agreed level this is reported and raised as an issue to investigate.
Calculations

No further calculations were performed and this dataset is presented as found
Other information
Data last updated 2021-10-27: see changes on GitHub opens in a new window
Metadata last updated 2021-10-28: see changes on GitHub opens in a new window

This table provides information on metadata for SDG indicators as defined by the UN Statistical Commission. Complete global metadata is provided by the UN Statistics Division.

Indicator name

River Fly count
Target name

By 2020, effectively regulate harvesting and end overfishing, illegal, unreported and unregulated fishing and destructive fishing practices and implement science-based management plans, in order to restore fish stocks in the shortest time feasible, at least to levels that can produce maximum sustainable yield as determined by their biological characteristics
UN designated tier
UN custodian agency
Link to UN metadata

Source 1

Organisation

The Riverfly partnership - Anglers’ Riverfly Monitoring Initiative
Periodicity
Earliest available data

2010
Geographical coverage

Bristol-Avon catchment
Link to data source Riverfly Open Data opens in a new window
Release date 2021
Next release

TBA
Statistical classification
Contact details
Other information

Data is crowd sourced

Source 2

Organisation

The Riverfly partnership - Anglers’ Riverfly Monitoring Initiative
Periodicity
Earliest available data

2014
Geographical coverage

Bristol-Avon catchment
Link to data source
Release date 2021
Next release

TBA
Statistical classification
Contact details
Other information

Data is crowd sourced