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Crayfish, Photo: Ian Skipworth
Crayfish Flourishing
The number and size of crayfish has increased significantly inside some of our marine reserves (e.g. Te Angiangi, Tonga Island, Piopiotahi reserves).
At Te Whanganui-a-Hei Marine Reserve, crayfish are 15 times more abundant than those in non-reserve areas.
Jewel anenomies, Kapiti island marine reserve. Photo: Ian Skipworth

Starfish, Snapper & Sea Squirts Thriving
By not taking marine life inside marine reserves, food webs and habitats can return to more natural states. At Cape Rodney-Okakari Point Marine Reserve, increasing numbers of crayfish and snapper are eating kina, whose number had exploded along the heavily fished coast and reduced the abundance of seaweed, which they eat. With fewer kina, seaweeds and other creatures living on and around it, such as starfish, sponges, byrozoans and ascidians, have bounced back.
