Environment Agency white-clawed crayfish Survey of the River Lune Catchment 2004
Environment Agency
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.
Geographic Description
The survey covered the entire River Lune catchment.
Data quality
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.
Methods
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.
Citation
Environment Agency ([Insert download year]). Environment Agency white-clawed crayfish Survey of the River Lune Catchment 2004. Occurrence dataset on the NBN Atlas
Rights
OGL
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Digitised records
Looking up... the number of records that can be accessed through the NBN Atlas. This resource was last checked for updated data on 07 Feb 2023. The most recent data was published on 07 Feb 2023.
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