Godwits and wrybills roost on chenier shell banks at Miranda, and the western shore of the Firth of Thames. Each year, godwits will embark on the longest non-stop migration of any bird in the world, flying from this site to the Yellow Sea in China, then to Alaska, and returning across the Pacific, direct, to New Zealand.
In many of Auckland's older suburbs, stormwater and sewerage is combined. As the population has increased, infrastructure has failed to adapt adequately, and changes in climate make rainfall events more intense.
The irony is that the camera can't see far enough to properly document the worst sites in the Hauraki Gulf—they're too turbid to see more than a foot. So we're here, in the serene and relatively intact harbour environment at Leigh, to film human impact where the water remains clear enough to get a picture, but where our influence is becoming obvious.
At Pōnui Island, under the shade of picturesque pōhutukawa, effluent from a farm drains into the Waiheke Channel adjacent to the Te Matuku Marine Reserve. Stock roam freely through the waterway and the wetland above it. The smell, fortunately for the viewer, can only be imagined.
A Leigh Fisheries longliner reels in a catch with practiced efficiency. Target species—such as snapper—go to the fish bin and then to market, and a flick of the wrist dispatches non-target species back into the sea.
Fishing effort, day after day, century after century, has changed the shape of this place. It’s still heaving with reef fish, but the predators are gone. It’s still resplendent with sargassum weed, but kina that were once devoured by snapper and other reef predators are tearing holes through the fabric of the ecosystem.
An ecosystem in balance is marked by diversity and abundance. An ecosystem out of balance is a desert of monotony. Here at Nordic Reef, snapper populations have been depleted by overfishing, kina populations have exploded and devoured all the kelp, sponges and algae.
Making New Zealand a little more real to New Zealanders, using virtual reality.
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