NZ Engine

Source: Radio New Zealand

Usually, there are only calm currents at Auckland’s Western Springs Lake.

But this week, electrocurrents are being used to stun pest fish and turtles so they can be scooped up, brought to land and killed.

Associate Professor in Biodiversity and Ecology at the University of Waikato’s School of Science, Nicolas Ling, is one of the specialists scooping up hundreds of koi carp, including goldfish and brown bullhead catfish, on New Zealand’s only electrofishing boat.

He said no native species would be harmed by the electrofishing process.

“It puts a pulsed electric current into the water, and it temporarily stuns the fish, which means we can recover them. The native species, we can recover those, and we can put them back in the lake unharmed, and the pest species, we can humanely euthanise them.”

Ling said catfish were most likely released into the lake more than a hundred years ago. Koi were believed to have been introduced into New Zealand in the 1960s.

But he said most of the goldfish and turtles in the lake were people’s unwanted pets.

“People think they’re doing the right thing, you know, when they don’t want their pet anymore, they go and release it into the local lake. And it’s actually the worst thing you can do. If you want to take on a pet, then take it on for the course of its natural life.”

He said they were also removing red-eared slider turtles from the lake.

“Again, these are pets that people have released when they no longer want them. The problem with the turtle is, if you take that on as a pet, it’s a 50-year commitment. It’s a multi-generational pet. They get huge and it becomes very expensive to provide the habitat for an adult turtle. And so people just go and release them, which is a sad thing.”

All of the pests collected were brought back to shore to be killed and then taken off-site to be turned into compost or rendered down to produce natural gas.

While killing the pests was not a pretty sight, Ling said it was necessary.

“These particular species are known to cause negative impacts on water quality. The lake should be nice and clean, but it’s not, and the fish are definitely contributing to that. They stir up the bottom sediments, and that resuspends nutrients back into the water column, which can cause increases in algal growth and bacterial growth.

“The koi and the goldfish eat the plants in the lake, which also take out nutrients.

“Those challenges with water quality mean that it makes it potentially unsafe for recreation around the lake. You don’t want to be touching the water.

“There’s fantastic bird life around here. When the water quality is really poor, they can suffer from a disease called avian botulism.

“And of course, they’re competing with the native species as well. There are lots of eels in the lake, and that’s good to see. There are also īnanga, which are key whitebait species. There’s common smelt in the lake as well.”

The lake was home to three native eel species: the short-finned eel, the long-finned eel, and the Australian long-finned eel, and there are plans to declare the lake an eel sanctuary.

The Waikato University specialists would be at the lake for one week ending on Friday, 13 November, with the council saying there were plans for them to return in the near future to continue the pest removal operation.

Auckland Council Senior Freshwater Advisor, Matthew Bloxham, said the council had previously tried other techniques to remove pests from the lake, but this was the first time they had brought in an electrofishing boat.

He said so far it had been a success.

The team at Western Springs had caught Koi weighing up to 14kg. The largest Koi ever caught in New Zealand weighed 15kg.

“Not many people realise that they get so large,” Bloxham said.

We’ve found quite a few diseased goldfish in here recently. So, putting them in here doesn’t necessarily give them a better life. It’s actually passing on the problem to somebody else, in this case the environment.

“It’s far better to repurpose that goldfish or re-home it, reach out and see whether anybody’s prepared to take it on and there will be people out there, you know, people love goldfish, they are attractive things after all, but they’re a nuisance when they’re released into the wild.”

It was costing the council $20,000 to rent the electric fishing boat from Waikato University.

“The cost of this operation is not cheap. We’d prefer not to be spending the targeted rate on controlling pests. We’d rather spend it on direct biodiversity outcomes, such as planting trees, but it’s a necessary evil. We have to maintain these fish at really low numbers.”

“It only takes two fish, a male and a female, to breed up and to produce the sorts of volumes that we’re seeing here now. We’ve been fishing all week, and so far we’re just under 300 kilograms of fish. That’s hundreds of fish.”

Bloxham said eradication was the goal, but that wouldn’t happen if people kept putting their goldfish in the lake.

“If ever we do achieve eradication, and we’d really like to, that is our end goal, it’s so easily undone by somebody otherwise well-mannered person who thinks they’re doing their gold fish a favour and then just quietly, surreptitiously emptying them into the lake, and suddenly we’re back to square one.

“The big message that we’re trying to get out is that if you’re contemplating, you’ve reached the end of the year, and you’ve got a pet, you don’t know what to do with it, don’t release it into your waterway.”

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– Published by EveningReport.nz and AsiaPacificReport.nz, see: MIL OSI in partnership with Radio New Zealand

Source: Radio New Zealand

A Breaker Bay local with a long history of fighting for clean water in Wellington explains why the sewage dump is so catastrophic, for health, history, and the environment.

Ray Ahipene-Mercer keeps a jar of 24-year-old water in his refrigerator, labelled ‘Moa Point Final Effluent’.

“It looks like a glass of water, hasn’t got a single bug in it, no discolouration, nothing,” he says.

It is a memento of the new sewage plant which he battled over for years as the co-leader of the Wellington Clean Water Campaign.

But nearly 30 years after that successful campaign to stop the dumping of raw sewage in the sea, it is happening again.

Since last Wednesday, more than 600 million litres of untreated sewage have poured into the water off the south coast after a catastrophic failure of Moa Point, the city’s main treatment plant.

On a sparkling summer day Ahipene-Mercer looks out from his Breaker Bay home just around the corner from the plant and the bays are empty.

“I’m looking at the water about 50 metres away, it’s beautiful and yet underneath it there is this darkness. There is not a person walking the dog, having a walk, swimming, surfing, nothing,” he tells The Detail.

The former city councillor is angry, not just about the health risks to humans, but the damage to the environment and risks to the kororā, and to historic Māori sites.

“Toilet water is now brushing up against historic sites at Tarakina Bay. One of the reasons this campaign in the 80s was so successful, we married Māori concerns and Pākehā concerns together and that’s why we won that campaign,” Ahipene-Mercer says.

“I’m very angry, because of all this work we did. It’s not in vain however because Wellingtonians have responded magnificently.”

The plant failed early last Wednesday morning during a bout of heavy rain. With the threat of more bad weather this weekend, there are fears the situation could get worse.

‘It’s going to get smellier’

The Post journalist Tom Hunt has been writing about Wellington’s wastewater woes for years and is experiencing first-hand the effects of days of raw sewage flowing into the sea.

“It gets worse the longer it’s there and it’s apparently going to get smellier as well,” he tells The Detail.

“I live not far from the tip and it was a still night last night and I could pick up a faint smell,” he says. “They’ve got these tanker trucks that Wellington’s quite familiar with because in covid time there was another pipe failure and they’d take the wastewater to the tip and they were called ‘turd taxis’. They’re just back and forth ferrying all the stuff out of the olympic-sized swimming pool room and just clearing that out and taking it to the tip.”

Wellington Water chief executive Pat Dougherty broke the news last Wednesday that a room in the plant was three metres deep in sewage, blowing the electrics and badly damaging or destroying equipment.

In the immediate aftermath raw sewage was flowing through a short outfall to five metres off the coast but it is now going through a longer 1.8 kilometre pipe.

“But it is still untreated sewage … and for the foreseeable future we will have effectively raw sewage being pumped off the south coast very near a marine sanctuary not far from a nesting area,” Hunt says.

It could be months before the sea on the south coast is safe for walking, swimming and collecting kaimoana.

It brings back memories for Hunt, who grew up around the south coast of the polluted waters in the 1980s.

“That was a different time when the south coast was not a desirable place to be.”

He says now they’re “back in that for a mystery reason, we still don’t know what caused it.”

Hunt explains the numerous reports of warnings and abatement notices issued to the operator, French-owned Veolia which is paid roughly $17 million a year by Wellington Water to run the plant.

He says it is too soon to say who is at fault and a full inquiry will impel people to give evidence.

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– Published by EveningReport.nz and AsiaPacificReport.nz, see: MIL OSI in partnership with Radio New Zealand

Source: Radio New Zealand

Former Reserve Bank Governor Don Brash is supportive of the government’s decision to review the Bank’s decisions during the Covid-19 pandemic, but concerns from the opposition over the review’s timing so close to the election are a “fair question”, he says.

On Wednesday, finance minister Nicola Willis announced she was launching an independent review into monetary policy decisions during the pandemic, including cuts to the Official Cash Rate, and the Large Scale Asset Purchase programme.

Willis is touting the exercise as a fact-finding, lessons-learned mission.

“This is simply about New Zealand learning the lessons of history. The Reserve Bank, during the response to Covid-19, did a huge amount of money printing,” she said.

“The result, in part due to those decisions, in part due to Labour’s decisions to spend and borrow a huge amount of money, was very high inflation, house prices going up 30 percent in a year, and more than $10 billion of losses after the printing of that money. So it is appropriate for the government to look at, did we get it all right, what could we do better in the future?”

Brash, also a former National leader, said the effects of monetary policy were “substantial” during the pandemic, and given the costs to the taxpayer an ex-post review “almost certainly” made sense.

“The Reserve Bank did two main things: they cut the Official Cash Rate to a very low level, 0.25 [percent], and would probably have cut it below that level had they felt the banks were able to handle that,” he said.

“In the end, they didn’t cut it below 0.25, but instead, of course, they bought many billions of dollars of government bonds at low interest rates in an attempt to stimulate the economy, but at a cost to the taxpayer, which was very substantial. So I think it’s worth having a having a good look at that.”

The current governor Anna Breman said she welcomed the review, but pointedly referenced a mandatory review undertaken by the Bank of the 2017-22 time period, which found the “large scale asset purchase programme was successful in correcting financial market dysfunction and reducing long-term interest rates”.

The review also found that “in hindsight, earlier, or stronger monetary tightening could have curbed the subsequent hike in inflation,” Breman said.

Willis was not impressed by that previous review.

“The Reserve Bank went through a window-dressing exercise of doing their own review of what they’d done, and gave themselves essentially full marks at the time,” she said.

“In opposition, I was frank. I said they’ve marked their own homework, that’s not good enough. If I was the finance minister, I would commission an independent review, and today that’s what I’ve done.”

The opposition has questioned why, if Willis had wanted a review all along, she had waited until now to commission it – especially as it is set to be made public in September, just a few weeks before the election.

Labour leader – and former Covid-19 response minister – Chris Hipkins said it was “an exercise in cynical, political manipulation,” pointing to other occasions the government could have done a review, including when it expanded the terms of reference for the Covid-19 Royal Commission of Inquiry.

“The timing of it is very transparent. This is a very clear political exercise in the middle of an election campaign. It’s not designed to provide some impartial view of the Reserve Bank’s actions, bearing in mind that the Reserve Bank took all of these actions independently of the government of the day,” he said.

“I think the whole world has learned a lot of lessons around monetary policy in a global crisis like a global pandemic. New Zealand’s Reserve Bank, the actions they took weren’t out of line with the actions being taken by central banks around the world. And there have certainly been lessons, I think, the whole economic system have learned from that.”

Hipkins described the review as an “attack” on the Bank’s independence.

Green Party co-leader Chlöe Swarbrick has also questioned the timing, noting she had called for a Select Committee inquiry into the economic response in 2022.

“The timing of this is so sus. Nicola Willis has been talking about these concerns since I was on the Finance and Expenditure Select Committee with her back in 2020. And it also obviously was an election issue throughout 2023. So if the minister’s intent, if the government’s intent, is pure, they would have got this out of the way with the broader Covid inquiry.”

Swarbrick said she had held former Finance Minister Grant Robertson’s “feet to the fire” on the effects of monetary policy on inequality, and did not believe Willis had any intention of addressing inequality with the new review.

“The Greens have actually been concerned since the outset of Covid-19 with unconventional monetary policy’s deployment. Because, as reflected in advice from RBNZ and Treasury at the time, that to do the Large Scale Asset Purchases and associated unconventional monetary policy without intervening or mitigating fiscal policy, we would see massive house price inflation and growing inequality,” she said.

“Of course, that’s exactly what happened.”

Willis has denied the review is timed for the election, and said she had not received advice on its timing.

“I don’t need to have that raised with me. It turns out that it’s quite top of mind that there’s an election in November. I don’t need officials to give me advice on it,” she said.

“The more political question you should all be asking is why are there politicians who are afraid of an independent review of the decisions of the independent Reserve Bank? Riddle me that.”

Brash noted that when he was Governor, the incoming Labour government in 1999 commissioned a “complete review” of the Bank’s framework.

That review, published in 2001 by Swedish economist Lars Svensson, recommended the formal establishment of a Monetary Policy Committee, something then-Finance Minister Sir Michael Cullen rejected.

The Committee was later established in 2019, following a further review of the Reserve Bank Act in 2017.

Svensson found the Bank had tightened its policy too late in 1992/93, and eased it too late in 1997/98.

He also recommended the Bank change how it reported and discussed alternative measures of inflation expectations for the medium and long term, but generally found its communication of monetary policy decisions to be “exemplary”.

Brash described that review as a “fair cop,” and a reasonable thing for a government to do.

He said it was a “fair question” of why Willis had waited until an election year to commission a review of her own.

“You can debate whether the timing should have been a few months earlier or a few months later, but that there should be a review seems to me to make good sense.”

Brash said he could “see some logic” in having it now, rather than earlier, as Willis would have wanted to wait until a new Governor came in.

He said he was not familiar with one of the reviewers, Athanasios Orphanides, but was familiar with David Archer from when he was the Reserve Bank’s assistant governor.

Brash said he was “pleased” at Archer’s involvement, and he had a “high regard” for him.

“Not only at the Reserve Bank of course, but he was also at the Bank for International Settlements in Basel for a number of years. So he’s had very wide international experience.”

Willis said the two reviewers were “objectively credible” and had significant experience.

“They are not political figures in any way. And I actually went to great pains to work through with the Treasury who, in a domestic context, would be able to do the review, who wasn’t conflicted by previous statements, and who would be able to give this credibility and weight, so I stand by the decision.”

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– Published by EveningReport.nz and AsiaPacificReport.nz, see: MIL OSI in partnership with Radio New Zealand

Source: Radio New Zealand

One of two schools that illegally gave scholarships to foreign students who played in their top sports teams says it only happened because a sponsorship deal fell through.

The other has not responded to RNZ’s questions.

School sport leaders say they do not believe the cases are symptomatic of a wider problem, but an auditor told RNZ he doubts many of his peers know to keep a lookout for scholarships to foreign students when they review schools’ finances.

The Office of the Auditor General brought the https://www.rnz.co.nz/news/national/541873/schools-spending-money-on-gyms-family-travel-for-principals-auditors-say breaches to light in reports published in February and December last year, covering audits of school annual reports for 2023 and 2024.

“We highlighted that two schools breached legislation by meeting the costs of an international student through a scholarship. Legislation requires schools to charge fees for international students that at least cover the estimated costs of providing tuition and capital facilities,” the most recent report said.

The Office of the Auditor-General told RNZ the schools were Westlake Boys’ High School and Howick College and RNZ understands in both cases the students represented the Auckland schools in top-level sport.

The Howick College annual report for 2023 showed the breach related to two foreign students.

“Without modifying our opinion, we draw the reader’s attention to a breach of legislation. The School enrolled and met the costs of two international students, including homestay and other school fees in the year ended 31 December 2023 through scholarships,” the auditors wrote.

“This is a breach of section 521(1) of the Education and Training Act 2020 which requires state schools to charge fees for international students that are not less than the estimated costs of providing tuition to a student in the relevant subject, course, or programme, including the provision of capital facilities, plus any other fees prescribed for international students.”

The Westlake annual report for 2024 had a similar comment but for one international student.

RNZ understands a third party alerted the firm that audited both schools’ accounts that it was illegal for state schools to subsidise the education of foreign students.

The firm did not respond to an RNZ request for comment.

Former Deloitte auditor Priyesh Ramesh told RNZ he doubted many auditors knew scholarships for foreign students were forbidden and it was unlikely they would check whether a scholarship in a school’s accounts was for a domestic or foreign student.

However, principals told RNZ the rules prohibiting schools from waiving or otherwise covering foreign students’ tuition costs were clear and the cases did not represent part of a wider problem.

The Education Ministry’s handbook of financial information for schools said scholarships must be open to every student at a school unless the giver of the scholarship has created a special trust.

Its website said international students not on a ministry-approved exchange programme must be charged fees that cover the cost of tuition and access to facilities.

Westlake headmaster Paul Fordham said the situation preceded his tenure as principal but it appeared the school helped a student after a sponsorship arrangement fell through.

“It certainly wasn’t a scholarship situation,” he said.

“It was a situation where a sponsorship had fallen through and the school essentially stepped in to meet the costs.”

Fordham said the school worked with auditors and the ministry to understand the breach and resolve it.

He said in the second year, 2024, the school found sponsorship that would cover what it believed were the student’s tuition and capital costs.

“We’ve tried to meet the rules but it’s a tricky situation when you’re dealing with a person.”

He would not confirm details about the student or the sport they played.

Fordham said he had not previously heard of third parties providing scholarships or sponsorships for foreign school students.

“It does seem unusual and I don’t know if it’s a generally-used practice. It’s certainly a one-off from what I could establish at Westlake,” he said.

Asked if schools were aware that they could not waive international students’ fees, Fordham said common sense suggested they should not do that.

“Money that’s given to schools for operational needs and facilities etcetera certainly isn’t given for the purposes of subsidising international students’ costs,” he said

Fordham said Westlake had 200 foreign students and some represented the school in sport.

He did not believe foreign students’ participation in school sport was creating problems.

School Sport New Zealand chief executive Mike Summerell said schools could have no more than two international students in any teams competing in School Sport championship events.

He said in the past some schools recruited top foreign athletes for short periods to bolster their teams and the rules were designed to prevent that from happening.

Summerell said School Sport redeveloped its eligibility rules extensively in 2025 and would review them, including those covering the inclusion on non-domestic students, this term.

Summerell said it was difficult to track how many foreign students were playing in top teams.

“There’s not necessarily an outcry by schools to say that international students are filling up these spaces, but I would hazard a guess that there are certainly international students taking opportunities at these championship events for a lot of schools and that’s not necessarily a problem.

“Whether that leads to success for those schools is really not something I have the data to comment on.”

Summerell said he did not know how well schools understood the ministry’s rules prohibiting the use of school funds to cover foreign students’ fees.

He said School Sport rules forbade offering sport scholarships.

“If there was evidence that schools were providing scholarships… that weren’t publicly-available, and by that I mean that’s on their website that there’s a scholarship for X and it’s contestable, then there’s provision under the School Sport New Zealand eligibility rules and our integrity framework to look at that and investigate whether that’s fair,” he said.

However, Summerell said it was extremely difficult to prove if a school had provided scholarships that broke the rules.

College Sport Auckland chair Tim O’Connor said many schools had foreign students in their sports teams and Education Ministry rules about their fees were clear, as were the School Sport New Zealand rules on participation.

O’Connor agreed that though schools were prohibited from waiving or subsidising foreign students’ fees, there was nothing to stop third parties providing scholarships or sponsorships and that should be monitored in case it became a problem.

He said sport was an extra-curricular activity and the primary purpose of schooling, including for international students, was to provide an education.

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– Published by EveningReport.nz and AsiaPacificReport.nz, see: MIL OSI in partnership with Radio New Zealand