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USGS Nonindigenous Aquatic Species database
The database has been established as a central repository for spatially referenced biogeographic accounts of introduced aquatic species. The program provides scientific reports,... -
Diatoms and Other Algae: The ANSP Algae Image Database
The ANSP Algae Image Database contains light micrograph images of diatom taxa from rivers throughout the USA. Many taxa are represented. There are multiple images of several to... -
Rotifera of Chihuahuan Desert Waters
Deserts are contradictions; while above ground terrestrial productivity is low, they support a remarkable degree of biodiversity and harbor large numbers of endemic terrestrial...