With your help, Redmap will be tracking the following marine algae around Australia. Redmap is interested in sightings where algae and plants have ventured away from their usual home range.

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  Red tide

  Noctiluca scintillans

  Individually these critters are tiny and not usually visible to the naked eye. There are documented cases in Tasmania in which dense 'red t…

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  Japanese kelp

  Undaria pinnatifida

  Japanese kelp is golden brown in colour and consist of a holdfast, a long cylindrical ruffled stipe (stem) and flattened branched blade. St…