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Pinnularia mesolepta is a species of diatoms in the family Pinnulariaceae. It is native to Rio de Janeiro, Santa Catarina, Paraná, Rio Grande do Sul, São Paulo, and Pará. Pinnularia mesolepta 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 8 attributes, including:

Known occurrences, collected specimens and observations of <i>Pinnularia mesolepta</i>