 Much of the coastal fishing industry in New Zealand depends on mangrove forests.About 80% of fish caught commercially are linked to food chains dependent on the mangroves, and at least 30 species of fish use mangrove wetlands at some stage of their life cycle.The marine and estuarine areas in the Kaipara Harbour breed snapper, mullet, flounder, sole, kahawai, white trevally, gurnard, yellow‑eyed mullet and skates, rays and sharks.