Cladocera distribution updates 2014

Quality Control

Data have only been updated and maintained since 2012 and are in no way comprehensive in geographic or taxonomic coverage. Data have been checked against recent taxonomic splits and name changes. The dataset has been checked for erroneous grid references and corrected but since little is known of the range of cladocera species this it not been possible to check for records outside their normal range.

Method steps

1. Data collected from published records, collected using plankton nets and sediment core analysis by members of the CIG.

Coverage is from across Great Britain but is biased towards areas where CIG members live or travel to. The majority of records have six figure grid-references, more recent records are 10 figure. Literature records vary in precision.