Video | Agriculture | Confidence | Economy | Energy | Employment | Finance | Media | Property | RBNZ | Science | SOEs | Tax | Technology | Telecoms | Tourism | Transport | Search


Testing Opotiki’s waters for marine farming

Media Release

Testing Opotiki’s waters for marine farming

Environment Bay of Plenty is testing Opotiki’s coastal waters to discover what impact marine farming would have on them.

The regional council has set up a range of monitoring devices that will help it assess the sustainability of future potential aquaculture projects, such as mussel farms.

Two water current metres and three strings of water temperature sensors are now deployed in a line directly offshore from Opotiki, says senior environmental scientist Stephen Park. The instruments will give detailed information on water temperature and the direction and speed of currents, he explains.

Mr Park says results from further up the coast have revealed quite complex current patterns, with surface waters often running in the opposite direction to the deeper water. Currents change frequently with the weather.

The monitoring data will be supported by information from a wave buoy near Pukehina that measures wave height and direction. Regular water quality surveys of nutrient levels, salinity and clarity will add to the information base. These surveys will also assess the types and quantity of phytoplankton, the food source for mussels and other shellfish. Satellites will provide data to give an overview of patterns.

“All of the data will be put together and used to create models that will help us predict the impact of various climatic and aquaculture scenarios,” Mr Park says. “This project will result in a vast improvement in the knowledge we have of our coastal shelf waters.”

He asks fishermen and other boaties not to anchor near the buoys that mark the location of the current metres. “We don’t want any of these instruments to be damaged or the data lost.”

All findings will be published when the project ends.

Marine farming is a fast-growing and lucrative industry in New Zealand, with predictions that export earnings will exceed $1 billion by 2020.


© Scoop Media

Business Headlines | Sci-Tech Headlines


Media Mega Merger: StuffMe Hearing Argues Over Moveable Feast

New Zealand's two largest news publishers are appealing against the Commerce Commission's rejection of the proposal to merge their operations. More>>


Approval: Northern Corridor Decision Released

The approval gives the green light to construction of the last link of Auckland’s Western Ring Route, providing an alternative route from South Auckland to the North Shore. More>>


Crown Accounts: $4.1 Billion Surplus

The New Zealand Government has achieved its third fiscal surplus in a row with the Crown accounts for the year ended 30 June 2017 showing an OBEGAL surplus of $4.1 billion, $2.2 billion stronger than last year, Finance Minister Steven Joyce says. More>>


Mycoplasma Bovis: One New Property Tests Positive

The newly identified property... was already under a Restricted Place notice under the Biosecurity Act. More>>

Accounting Scandal: Suspension Of Fuji Xerox From All-Of-Government Contract

General Manager of New Zealand Government Procurement John Ivil says, “FXNZ has been formally suspended from the Print Technology and Associated Services (PTAS) contract and terminated from the Office Supplies contract.” More>>