Journal
SCIENTIFIC DATA
Volume 8, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41597-021-00888-w
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Funding
- European Commission [07.0202/2019/812602/ETU/ENV.D.2]
- MIUR
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This study compiled a global dataset of occurrences of the Atlantic blue crab, including 40,388 geo-referenced records from 53 countries. Quality controls and technical validation procedures were implemented to ensure the accuracy and reliability of the dataset.
The Atlantic blue crab Callinectes sapidus is a portunid native to the western Atlantic, from New England to Uruguay. The species was introduced in Europe in 1901 where it has become invasive; additionally, a significant northward expansion has been emphasized in its native range. Here we present a harmonized global compilation of C. sapidus occurrences from native and non-native distribution ranges derived from online databases (GBIF, BISON, OBIS, and iNaturalist) as well as from unpublished and published sources. The dataset consists of 40,388 geo-referenced occurrences, 39,824 from native and 564 from non-native ranges, recorded in 53 countries. The implementation of quality controls imposed a severe reduction, in particular from online databases, of the records selected for inclusion in the dataset. In addition, a technical validation procedure was used to flag entries showing identical coordinates but different year of record, in-land occurrences and those located close to the coast. Similarly, a flagging system identified entries outside the known distribution of the species, or associated with unsuccessful introductions.
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