Canadian Diatom Database The Canadian Diatom Database includes two components, the first one contains approximately 5,000 diatom samples with their description, precise geographic location and associated information, and the second one consists of 1,500 entries giving information on the environmental and ecological tolerance of individual diatom species. Diatoms are powerful indicators of environmental conditions since they respond quickly to environmental changes. They are widely utilized in stratigraphic investigations. 1993-01-01 2017-05-04 Natural Resources Canada NRCan.geogratis-geogratis.RNCan@canada.ca Form DescriptorsNature and EnvironmentScience and Technologyatmosphereclimateconservationenvironmentfossilsgeologicalgeophysicalinland water resourcessediments Download ZIP (shp,xls) through HTTPZIP http://ftp.geogratis.gc.ca/pub/nrcan_rncan/archive/vector/geology/Diatoms/diato-sites2000.shp.zip

Canadian Diatom Database

The Canadian Diatom Database includes two components, the first one contains approximately 5,000 diatom samples with their description, precise geographic location and associated information, and the second one consists of 1,500 entries giving information on the environmental and ecological tolerance of individual diatom species. Diatoms are powerful indicators of environmental conditions since they respond quickly to environmental changes. They are widely utilized in stratigraphic investigations.

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We are elaborating a Uruguayan Diatomologic Index