Toxic algae
Toxic algae is known to bloom in awa/rivers during the warmer months, so it’s a great time for a refresher on how to spot it.
Toxic algae grows on the bottom of riverbeds and appears as thick dark brown or black mats that have a slimy or velvety texture and musty smell.
These mats can come loose and wash up on the edge of the rivers, or form ‘floating rafts’ in shallow areas. As they dry out, they turn light brown or white and look like dried leaves or cowpats.
If you are in any doubt, keep your whānau and animals away from the river.
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