Currents have then carried the smelly algae to the coast where it has inundated beaches and turned them brown. While the algae is not bad for the environment, it is known to smell awful.

Health New Zealand | Te Whatu Ora has issued a health warning for the Ōpihi River at Saleyards Bridge. The warning follows finding moderate to high cover of potentially toxic algae (benthic ...

Depending on the algae they are in, they can turn red, green, brown or transparent. A study published in the Journal of Animal Ecology shows for the first time how these crustaceans interact with ...