Mark Webber   cc-by-nc-4.0

Chaetoceros affinis is a species of diatoms in the family Chaetocerotaceae. They are native to Alagoas, Rio Grande Do Sul, Pernambuco, Rio De Janeiro, Paraná, SãO Paulo, ParaíBa, Espirito Santo, Sergipe, and Rio Grande Do Norte. Dead Chaetoceros affinis form siliceous oozes.

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  • URI: http://purl.obolibrary.org/obo/ENVO_02000044
  • Definition: Siliceous ooze is a marine sediment composed of the debris of plankton with silica shells, such as diatoms and radiolaria. This ooze is limited to areas with high biological productivity, such as the polar oceans, and upwelling zones near the equator. The least common type of sediment, it covers only 15% of the ocean floor. It accumulates at a slower rate than calcareous ooze: 0.2-1 cm / 1000 yr.
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EOL has data for 20 attributes, including:

Known occurrences, collected specimens and observations of Chaetoceros affinis. View this species on GBIF