The Hauraki Gulf is at its most alluring - glassy calm and sparkling blue in the sunlight - and thousands of Aucklanders in small boats hover above the fishing reefs.

In the second of the Sea Change series science reporter Jamie Morton looks at the health of the gulf’s fish populations.

Could teamwork deliver a plan to save the Hauraki Gulf for future generations? Science reporter Jamie Morton considers the issue.

A company has abandoned a High Court appeal against a decision rejecting its application to mine up to 50 million tonnes of black sand off the West Coast seabed.

The contrast in fortunes this week between two parts of New Zealand could not have been starker.

Crayfish and food. That is what springs to mind when the word Kaikoura is mentioned and the translation kicks in. So when Anton Evans offers to take us out in his 9m charter boat, the Rodfather, to pick up crays we don't hesitate.

Trout taken from catchments where 1080 poison has been dumped are safe to eat, the Ministry of Primary Industries says.

Commercial fishing would be banned from the inner Hauraki gulf and the entire Marlborough Sounds under National's plan for new recreational fishing parks in those areas.

Fish & Game officers step-up their efforts to combat the problem of trout poaching in the central North Island. Please help Fish & Game - if you see anything suspicious, phone 0800-poaching (0800-762244)

David Letterman once billed him as the "extreme fisherman" but Matt Watson sees himself as a custodian of the sea.

The value of primary exports will fall from unusually high levels over the 2014/15 year before recovering steadily in the following three years.

Snapper fishers will need to lengthen their rulers and return more fish to the sea from Tuesday as measures to restore the country's most popular fishery take effect.

Supermarket giant Countdown is facing fresh questions after large bins of whole snapper found at a waste meat processing plant were traced to its supply chain.

The impact of commercial fishing on vulnerable ecosystems in a unique area of the South Pacific will go under the microscope during a five-week scientific voyage.

More than half of New Zealanders think commercial fishing should be banned in the Hauraki Gulf, according to a Herald-DigiPoll survey.

New technology designed to prevent fish dumping by the country's commercial fishing fleet will be unveiled today.

The gannets set their sharp wings like those on a jet plane.

New Zealand has reiterated calls to protect waters south of the country from overfishing ahead of an anticipated setback next week.

A revolutionary New Zealand- designed commercial fishing system - using a PVC tube rather than a mesh net - has been described as 'the future of sustainable fishing'.

Is this new fishing net developed by NZ industry and scientists the future of sustainable fishing? See the first underwater images of revolutionary fishing technology created by a partnership between local scientists and three Kiwi fishing companies.