Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 

First Didymo survey negative, caution needed

DATE 7 October 2005

First Didymo survey results negative but caution still needed.

Surveys of the Northern third of the South Island have not found any more rivers affected by the invasive Didymo alga, Biosecurity New Zealand announced today.

Additionally, several samples from other rivers in the central South Island, the Waitaki, Tekapo, and Ohau Rivers, and the Travers River in the Buller catchment, which had been reported in the media as possibly being Didymo, have proved to be negative. Formal surveying of these areas will take place over the next few weeks.

The only place in the Buller where Didymo has been confirmed was the original find in the main stem just downstream from Lake Rotoiti (Nelson). Survey results from elsewhere in the Buller catchment were negative.

Biosecurity New Zealand chief technical officer Peter Thomson said that while the negative results from the 110 tested sites were great news, cleaning precautions were still necessary for people using equipment in more than one river, and would remain that way for the foreseeable future.

“New Zealand is still clean and green, but New Zealanders must not take this for granted. The way of life for freshwater users needs to change. It is the personal responsibility of every New Zealander using freshwaters to take the appropriate precautions after using any river or lake to avoid spreading Didymo.

“While we have confidence in our results caution is still necessary. We are dealing with a microscopic organism in millions of litres of water over hundreds of kilometres of river. River users can spread Didymo very easily, and the risk won’t always be apparent. The message about the dangers of aquatic pests is not a new one, and Didymo certainly highlights the seriousness of the issue,” Mr Thomson said.

Meanwhile, surveys in the North Island got underway in the Turangi, Taupo and Tongariro area today, with helicopters used to access some areas. Surveys elsewhere in the North Island and in the southern third of the South Island will continue next week.

Biosecurity New Zealand is awaiting a report from the organisers of the jetboat marathon in Southland on the measures jet boaters propose to take to minimise the risk of spreading Didymo and will comment on it once it has been received and assessed.

“It’s been a busy time for many staff, and we appreciate the efforts of those organisations who have helped us get on with the job,” Mr Thomson said.

Meetings with stakeholders continue, and the efforts of all groups to work proactively with Biosecurity New Zealand while the present situation is being dealt with is much appreciated. A public meeting held in Murchison last night has been a positive and useful experience. Similar meetings are planned for other locations in survey areas during the next few weeks.

To date the only rivers to have tested positive for Didymo are the Mararoa, upper and lower Waiau, Oreti, upper Clutha, Hawea and the Buller.

ENDS

© Scoop Media

 
 
 
Business Headlines | Sci-Tech Headlines

 

Paymark: Lockdown Equals Slowdown For Some

The three days of lockdown for Auckland earlier this month made a clear impression on our retail spending figures. While only Auckland moved into Level 3 lockdown, the impact was felt across the country, albeit at different levels. Looking at the ... More>>

Infrastructure Commission: Te Waihanga Releases Report On Water Infrastructure

The New Zealand Infrastructure Commission, Te Waihanga’s latest discussion document highlights the importance of current reforms in the water sector. Its State of Play discussion document about water infrastructure is one of a series looking at the ... More>>

Sci-Tech: Perseverance Rover Lands On Mars – Expert Reaction

NASA has landed a car-sized rover on the red planet to search for signs of past life. The vehicle has more instruments than the four rovers preceding it, and it’s also carrying gear that could help pave the way for human exploration of Mars. The ... More>>

ALSO:


ASB: Quarterly Economic Forecast Predicts OCR Hike As Early As August 2022

Predictions of interest rate rises have been brought forward 12 months in ASB’s latest Quarterly Economic Forecast. Chief Economist Nick Tuffley now expects the RBNZ to begin raising the OCR from its current level of 0.25% as early as August ... More>>

ACT: Matariki Almost A Half Billion Dollar Tax On Business

“Official advice to the Government says an extra public holiday at Matariki could cost almost $450 million,” ACT Leader David Seymour can reveal. “This is a perfect example of the Prime Minister doing what’s popular versus what’s responsible. ... More>>

Genesis: Assessing 6,000 GWh Of Renewable Generation Options For Development By 2025

Genesis is assessing 6,000 GWh of renewable generation options for development after starting a closed RFP process with 11 partners. Those invited to participate offer a range of technologies as Genesis continues to execute its Future-gen strategy to ... More>>

OECD: Unemployment Rate Stable At 6.9% In December 2020, 1.7 Percentage Points Higher Than In February 2020

The OECD area unemployment rate was stable at 6.9% in December 2020, remaining 1.7 percentage points above the level observed in February 2020, before the COVID-19 pandemic hit the labour market. [1] In December, the unemployment rate was also stable ... More>>

Stats NZ: Unemployment Drops To 4.9 Percent As Employment Picks Up

The seasonally adjusted unemployment rate dropped to 4.9 percent in the December 2020 quarter, from 5.3 percent in the September 2020 quarter, Stats NZ said today. Last quarter’s unemployment rate of 5.3 percent followed the largest increase observed ... More>>