98032204-c71d-407d-8cf5-257621244bdf urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-06-23T07:04:47 creation ISO 19115 2016 Antarctic Diatom Database (based on 115 surface samples) 98032204-c71d-407d-8cf5-257621244bdf All the available data sets containing diatom counts were compiled. These data sets were the 166 database used by Pichon et al. (1992), new data gathered separately by Dr Pichon (1994) and the author (L. Armand-1997), and Abbott's (1973) southeast Indian Ocean surface sample data set. Since each of the data sets were developed over periods of years or were subject to differences in processing and taxonomy, primary analysis was concerned with aligning current taxonomic advances and knowledge against the record of species identified in each data. With exception only to the Abbott southeast Indian Ocean data set (which could no longer be located for verification), the remaining data sets were combined and subjected to taxonomic reform. Following taxonomic reform a core-top diatom database was compiled using sample-selection criteria and through the removal of samples representing unique environmental regimes (i.e. Antarctic Peninsula region). A total of 115 samples from an original 194 remained available for use, and is identified as the Antarctic Diatom Database (ADB). {"type": "Polygon", "coordinates": [[[120.0, -70.0], [180.0, -70.0], [180.0, 90.0], [120.0, 90.0], [120.0, -70.0]]]} 120.0 180.0 -70.0 90.0 Biosphere | Ecological Dynamics | Community Structure Biosphere | Microbiota | Diatoms App 1-1.pdf documentDigital Methodology - Production of diatom slides PDF Unnamed resource documentDigital HTML Unnamed resource documentDigital HTML Unnamed resource documentDigital License Graphic PNG Unnamed resource documentDigital HTML Unnamed resource documentDigital HTML Unnamed resource documentDigital HTML