By RNZ
The Hawkes Bay Regional Council is urging people not to eat dead sea creatures that wash up onto the shore.
High volumes of crayfish, sea cucumbers and even some octopus are being found on the coast of Napier, which could be caused by algae using up all the oxygen in the water.
“At the moment our current working theory is that very low levels of dissolved oxygen on the sea floor is causing oxygen stress to these animals, said Marine Ecologist Anna Madarasz-Smith.