Survey Details - Crassostrea gigas survey 2009
Crassostrea gigas survey 2009
The dataset contains coordinates of Crassostrea gigas presences (18 locations), densities are given for locations where densities > 0.1 individuals/m2 occurred
National survey to establish status and distribution of Pacific oysters (Crassostrea gigas) in Ireland, funded mainly by IRCSET and IRCHSS, in association with the SIMBIOSYS project (2007-B-CD-1-S1), collaborative project with involvement of UCD, Marine Institute, BIM, Loughs Agency
1: timed-searches, SACFOR scale (semi-quantitative measure) and 2: transects (2 transects of 1m x 30m on rocky shores, 2 transects with 17 random quadrats of 1m2 on mussel beds)
Throughout the Republic of Ireland (and Lough Foyle, Northern Ireland)
All oysters collected as part of this dataset were verified by Judith Kochmann
Kochmann, J., O'Beirn, F., Yearsley, J. and Crowe, T.P. 2013. Environmental factors associated with invasion: modelling occurence data from a coordinated sampling programme for Pacific oysters. Biological Invasions. DOI 10.1007/s10530-013-0452-9
Collated by the National Biodiversity Data Centre from different sources, National Invasive Species Database, Survey: Crassostrea gigas survey 2009, National Biodiversity Data Centre, Ireland, accessed 22 January 2020, <https://maps.biodiversityireland.ie/Dataset/66/Survey/410>
Survey species distribution
Terrestrial Map - 10kmDistribution of the number of species recorded within each 10km grid square (ITM).
Marine Map - 50KmDistribution of the number of species recorded within each 50km grid square (WGS84).
Survey records distribution
Terrestrial Map - 10kmDistribution of the number of records within each 10km grid square (ITM).
Marine Map - 50KmDistribution of the number of records within each 50km grid square (WGS84).
Records per year
Species per year