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In Situ Fluorometric Measurements of Cyanobacteria, Green Algae, and Diatoms in Biofilms from Northwest Alaskan Rivers During Summer and Fall 2016-2019 This dataset contains measurements of in situ benthic biofilms from rivers of northwest Alaska during summer and fall 2016-2019. Measurements were made using a Benthotorch (bbe Moldaenke, Kiel, Germany) hand-held fluorometer, which distinguishes taxa (cyanobacteria, green algae, diatoms) and provides estimates of standing biomass. Categories: Data; Tags: Alaska, Algae, Aquatic Biology, Aquatic ecosystems, Arctic, All tags... Benthos, Benthotorch, Biofilm, Biota, Cyanobacteria, Diatoms, Environment, Freshwater ecosystems, Green algae, Limnology, Rivers/Stream habitat, USGS Science Data Catalog (SDC), Fewer tags