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  • Free-floating algae -- often called seaweed
  • Red algae ( Rhodophyta) -- Porphyra (from which edible nori is made), dulse, Ceramium and maerl
  • Green algae (Chlorophyta) --thongweed, sea lettuce (Ulva)
  • Brown algae (Phaeophyta) -- like fast-growing kelp, Sargassum, Turbinaria, Dictyota, and wrack
  • Phytoplankton -- tiny, one-celled photosynthetic plankton like diatoms, dinoflagellates, and coccolithophorids
  • Plants
  • Flowering sperms
    • Submerged: Seagrasses -- flowering plants like eelgrass and thalassia
    • Not Entirely Submerged: Mangroves -- trees that root in the shallow seafloor but grow above water

Hope this helps. JK

:)

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15y ago

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