Diatom Resistance to Digestion and Diatom Community Structure
Paul Grubach
Broschiertes Buch

Diatom Resistance to Digestion and Diatom Community Structure

The Capacity of Diatom Species to Survive Ingestion by an Algivorous Minnow

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The capacity of diatom species to survive gastrointestinal passage through algivorous minnows was examined. In order to determine whether diatom taxa varied in digestibility, live/dead ratios of cells taken from the minnows' feces were compared with live/dead ratios of cells taken from immersed rocks. With the use of Cluster analyses and Student's t tests, it was concluded that certain diatom species and genera were more resistant to digestion than others. Diatom species that are readily available to grazers are more resistant to digestion, and vice versa. Diatoms that are less available to gr...