Environment Agency white-clawed crayfish Survey of the River Lune Catchment 2004
Citation
Environment Agency (2017). Environment Agency white-clawed crayfish Survey of the River Lune Catchment 2004. Occurrence dataset https://doi.org/10.15468/rr2nxj accessed via GBIF.org on 2020-07-12.Description
The data come from a survey carried out between July and October 2004 which covered the River Lune catchment to assess the presence or absence of white-clawed crayfish.Sampling Description
Quality Control
Paul Bradley is acknowledged as an expert with regards to white-clawed crayfish and is able to identify them even at a very small size. This is a difficult task for non-experts. Works were carried out under licence from English Nature (now Natural England). Confidence in the data is very high.Method steps
- This data was collected by ecologists working for the Environment Agency. Locations were selected initially based on water chemistry, habitat and location near to a confluence. Further survey sites were then picked to fill in the gaps to ensure coverage of smaller tributaries in addition to larger watercourses. Survey sites were then sampled using standard sampling methodologies. The search effort was increased from the standard 50 refuges per site to 250 refuges per site.
Taxonomic Coverages
Geographic Coverages
The survey covered the entire River Lune catchment.
Bibliographic Citations
Contacts
originatorEnvironment Agency
Telephone: 03708 506 506
email: enquiries@environment-agency.gov.uk
homepage: https://www.gov.uk/government/organisations/environment-agency
metadata author
Environment Agency
Telephone: 03708 506 506
email: enquiries@environment-agency.gov.uk
homepage: https://www.gov.uk/government/organisations/environment-agency
distributor
NBN Atlas
Unit F, 14 - 18 St Mary's Gate, Lace Market
Nottingham
NG1 1PF
Nottinghamshire
GB
email: admin@nbnatlas.org
Marina Flamank
administrative point of contact
email: marina.flamank@environment-agency.gov.uk