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Shellfish aquaculture appears to be relatively low impact, and presents the opportunity of high-value, high-quality protein, sustainably cultivated in a healthy marine environment.
In 2016 marine farms in the gulf produced 1200 tonnes of oysters and 27,000 tonnes of mussels.
The farms offer little visual amenity, it’s true, but here in the Waiheke Channel—as elsewhere in the Hauraki Gulf—the mussel farm offers employment, economic opportunity, a recreational fishery and few negative side effects. Fish farms, conversely, are generally high impact propositions as finfish require feeding, which greatly increases nutrient loads and adverse affects on the seabed.
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