ALERT Non-Native Species Records for Signal Crayfish
Citation
Biological Records Centre (2022). ALERT Non-Native Species Records for Signal Crayfish. Occurrence dataset https://doi.org/10.15468/qmh0lm accessed via GBIF.org on 2025-05-14.Description
Recording Invasive Species Counts (www.nonnativespecies.org/recording/) was launched in 2010 and includes on-line recording for 19 species including: Signal Crayfish, Pacifastacus leniusculus https://secure.fera.defra.gov.uk/nonnativespecies/factsheet/factsheet.cfm?speciesId=2498 The Signal Crayfish is designated as an ALERT species and also within RISC. The data is predominantly provided by members of the public but records are verified from photos by designated experts. The recording form includes the option to provide abundance and whether the individual is dead or alive (or unknown).
Purpose
Records are collated in order to add to knowledge of this group, including distribution, population trends, autecology and phenology. In addition, the scheme works with all contributing recorders to raise the profile of the species group and its conservation. Sharing the data via NBN helps achieve these aims.
Sampling Description
Quality Control
The data should be regarded as accurate because of the verification and validation mechanisms.Method steps
- The data is collected by members of the public reporting their sightings through an on-line recording form (powered by Indicia). The records are casual observations. Records submitted with a photograph are verified by a designated expert and only these records are included within the dataset.
Taxonomic Coverages
Geographic Coverages
Bibliographic Citations
Contacts
originatorBiological Records Centre
metadata author
Biological Records Centre
distributor
NBN Atlas
27 Old Gloucester St, Holborn
London
WC1N 3AX
London
GB
email: admin@nbnatlas.org
David Roy
administrative point of contact
email: brc@ceh.ac.uk