On The Up: Artificial reefs in Tauranga Harbour aim to restore marine life
The project, involving local iwi and universities, aims to support marine ecosystems and the 'blue economy'.
'The rest is the circle of life,' Tua said.
Deep Dive Division is a Hamilton-based company specialising in commercial and scientific diving services across Aotearoa.
It is believed to be the only Māori and Pacific-owned dive company in New Zealand, combining Māori perspectives with environmental science and advanced technology.
The nine reefs, situated 13m deep in Tauranga Harbour, were collectively named Peara, meaning 'pearl' in te reo Māori and symbolising the nucleus of change, growth and life, Tua said.
The artificial reefs were also given another name, 'social housing for crayfish', and use natural fibres and marine-grade concrete along with proven techniques in how to deploy and rig them to the ocean floor.
The artificial reef systems have been deployed in the water to biomimic the habitats of our natural marine ecosystems and restore and protect biodiverse native marine life.
Six of the structures were manufactured at Hynds Pipe Systems Ltd under the leadership of Hynds Holdings director and R&D director Aaron Hynds.
The remaining three were constructed using a 3D concrete-printing technique.
The project was a collaboration between Deep Dive Division, the University of Waikato, local iwi, Hynds Pipe Systems Ltd and the Port of Tauranga.
The trial is scheduled to run for an initial period of 24 to 36 months.
The effects of the artificial reefs on marine life are plain to see and happen fast, Tua said.
Tua said when they started installing the second part of the reef, he saw that crayfish were already crawling on the first part.
'It went straight to the hole that was designed for it.'
Projects like Peara were a push into the 'blue economy' and the beginning push into aquaculture, he said.
'We embrace this industry because there will be jobs for local people.'
It was a purpose-driven project, starting with surveying the water and marine life and understanding the situation in Tauranga Harbour in real time, Courntey Karalus said.
There was also a purposeful New Zealand-led and based approach to creating these artificial reefs, she said.
'Many reef systems going in New Zealand are being bought in from Australia.'
Deep Dive Division recognised the strong cultural identity New Zealand has regarding the ocean and freshwater, Courtney said.
'We've got a marine heritage that we need to acknowledge.'
Deep Dive was established in 2018 and was involved with urban ocean agriculture structures, with a more real-world approach to environmental science.
She said the idea for the artificial reef followed the initial meeting with their partners in Tauranga Harbour.
'We were sitting at our home office whiteboard and sketching something up.'
University of Waikato professor Chris Battershill and Professor David Schiel, from the University of Canterbury, have led Ministry of Business, Innovation and Employment -funded research to assess marine life loss in the Eastern Bay of Plenty.
Battershill has worked closely on the development of Peara, providing scientific guidance on the conditions needed for marine ecosystems to regenerate.
The Peara reefs were designed to support the growth of seaweed and shellfish, act as a wave break, and attract marine life.
Inbuilt harmonics also helped deter whales and reduce the risk of beaching.
By introducing hard substrates, such as natural marine rock or engineered structures like Peara, the reefs provided essential footholds for marine life to grow in sandy or silty environments that typically lacked structure.
Reef structures and their acoustic properties were designed using mātauranga Māori to support the colonisation of native marine species in harbours, Battershill said.
'These native colonisers help resist the spread of invasive species.'
Native kelps such as Ecklonia and Carpophyllum forest species, along with mats of turfing red seaweeds, provided habitat for important taonga like crayfish, kina and other invertebrates that also served as food for fish, Battershill said.
'These reef outcrops offer refuge for marine biodiversity that is now rare or absent in the harbour.'
Hashtags
Try Our AI Features
Explore what Daily8 AI can do for you:
Comments
No comments yet...
Related Articles
Scoop
an hour ago
- Scoop
Why Is The New Zealand Media Not Questioning The Implications Of The Gene Technology Bill?
Press Release – Lisa Er Despite the profound ethical, environmental, and societal implications, there has been a noticeable lack of critical scrutiny from the mainstream media, says Lisa Er. As the Gene Technology Bill advances through Parliament, New Zealand faces a pivotal moment in science, agriculture, and public health. The proposed legislation would significantly relax restrictions on gene technology, enabling broader research, development, and use of genetically modified organisms (GMOs) in New Zealand for the first time in nearly 30 years Yet, despite the profound ethical, environmental, and societal implications, there has been a noticeable lack of critical scrutiny from the mainstream media. 'It is plausible that political and economic factors are influencing the nature and depth of media coverage regarding the Gene Technology Bill,' says Lisa Er, author of a petition to 'halt the progress of the Gene Technology Bill and instead set up a Commission of Inquiry into the health and safety of people and the environment on behalf of citizens, to allow time for wider community and stakeholder consultation.' Key Concerns: Environmental Risks: The Bill paves the way for the release of genetically modified organisms (GMOs) into New Zealand's unique ecosystems, risking irreversible impacts on native species, biodiversity, crops, and the country's global clean, green brand. Lack of Public Consultation: The Government has failed to meaningfully consult with Māori, scientists, and the wider public, ignoring Treaty of Waitangi obligations and indigenous rights, community concerns about food safety, cultural values, and environmental protection. Threat to Export Markets: New Zealand's primary export markets, especially in Europe and Asia, have strict GM-free requirements. The Bill endangers market access and could jeopardize billions in export earnings. Undermining Precaution: The Bill abandons the precautionary principle that has underpinned New Zealand's cautious approach to gene technology, exposing the country to unknown long-term risks. Ignoring International Best Practice: Leading nations are strengthening, not weakening, their oversight of gene technologies in response to new scientific evidence and public concern. Insufficient Public Debate: The bill has generated over 1,500 public submissions, reflecting deep divisions and strong opinions across the country. The removal of labelling GE is of considerable public concern. Why has the minimal media coverage largely focused on official statements and the potential benefits, with little attention paid to the risks, opposition viewpoints, or the broader societal debate that is unfolding in submissions and community discussions? Risk Oversight and Regulatory Gaps: the bill will open the door to unintended consequences, including ecosystem disruption, cross-contamination of crops, and unclear long-term health effects Transparency and Accountability: Some have questioned whether the bill is being rushed or if consultation has been adequate, particularly given the timing of the public submission period over the summer holidays Media outlets have an essential role in holding lawmakers accountable and ensuring transparency in the legislative process, and these risks deserve deeper journalistic investigation and public explanation. A Call to Action for the Media: We urge New Zealand's journalists and editors to fulfil their democratic duty by: – Investigating the full range of concerns about the Gene Technology Bill, including those raised in public submissions. – Highlighting the ethical, cultural, and environmental questions that remain unresolved. – Providing balanced, evidence-based coverage that empowers New Zealanders to make informed decisions about the future of gene technology in their country. 'The Gene Technology Bill represents a generational shift in New Zealand's approach to biotechnology', says Er. 'The public deserves robust, critical journalism that examines not only the promises but also the very real perils of this legislation.' Lisa Er, founder of Lisa's Hummus Issued in the public interest to encourage transparent, balanced, and investigative reporting on a matter of national importance Petition with over 4,000 signatures Petition request: That the House of Representatives halt the progress of the Gene Technology Bill and instead set up a Commission of Inquiry into the health and safety of people and the environment on behalf of citizens, to allow time for wider community and stakeholder consultation. Petition reason: I consider the Gene Technology Bill has failed to follow sound and fair processes by not consulting enough with the public and other stakeholders. I believe there is inadequate consideration of Te Tiriti obligations, and insufficient requirements to protect people and the environment from the risks of GE contamination. A range of gene editing techniques would be excluded from regulation. This would mean GE products would enter the environment and food supply untested, unregistered and unlabeled.
RNZ News
2 hours ago
- RNZ News
King's Birthday Honours: 'Wild' how far women's cricket has come
White Ferns captain Sophie Devine. Photo: Marty Melville White Ferns captain Sophie Devine has witnessed the dramatic increase in opportunities afforded to female cricketers, but has also seen the downsides of a packed schedule. Devine has been reflecting on her career since being recognised in the King's Birthday Honours for services to cricket , which she describes as a huge honour. Devine was selected for the White Ferns in 2006 at age 17 and has become one of the sports most dominant players. Last year she led the White Ferns to their maiden T20 World Cup title in the United Arab Emirates. The 35-year-old holds a number of records including becoming the first cricketer to score five consecutive 50-plus scores in T20's in the 2019/2020 season. The gains that female cricketers have made over the last decade have been extraordinary, given that back in 2014 the most a White Fern could earn was around $25,000 a year. The highest-ranked White Fern, who also plays a full domestic season, has the potential now to earn around $180,000. By the time New Zealand's best female cricketer Amelia Kerr gets paid to play in leagues around the world, including the lucrative WPL in India, she's pulling in half a million dollars a year. Devine said when she started out, she could never have imagined the opportunities which are now on offer in women's cricket. Sophie Devine playing for the White Ferns in 2006. Photo: PHOTOSPORT "It's been unbelievable, even the last five or six years it's gone to a completely another level. I always wished that we would be able to be full-time professionals but to see the money that's available now through some of these franchise competitions and the way that cricket boards around the world are starting to really invest in the women's game. I guess I'm most excited for what the future holds in terms of these youngsters coming through," Devine said. "When I first started playing for the White Ferns in 2006 I thought it was pretty cool that I got a bit of lunch money and things paid for in terms of flights and accommodation. "It's still got a long way to go ...it's part of the journey I think in terms of equal pay and things like that but it's been pretty wild to think about how far it has come." Since the start of the franchise cricket era, top players like Devine have also been sought after in competitions like Australia's Big Bash League and India's WPL. Increased opportunities have led to heavy workloads. "Last year after winning the T20 World Cup, less than 48 hours later we were on a plane to India and playing in a series a couple of days later and the Australian men were in a similar position a couple of years ago as well. "We know that's part of the job and why you get paid what you do ...it's a serious conversation that needs to be had in terms of the scheduling because it's only going to get busier. Hopefully we can manage it so that there are opportunities to allow players to get breaks, particularly young ones. I think of Melie Kerr, who could have another 10-15 year international career and you don't want to see her end her career early because she's burnt out. "Important that players take the opportunity to step away when they need to and not get sucked into the vacuum that can be not just international cricket but franchise cricket as well. You don't want to feel like you're missing out but your mind and body are your tools of your trade so it's a really important conversation that needs to be had." Devine took a two-month break from cricket earlier this year to give her own mind and body a rest, the second time she's taken a break in her career to prioritise her well-being. Amelia Kerr and Sophie Devine celebrate last year's World Cup win. Photo: PHOTOSPORT She is excited about joining up with the White Ferns in camp in Christchurch this week, as the side starts its journey towards another pinnacle event, the ICC Women's Cricket World Cup in India later this year. Pinnacle events excite her as much as they did when she first joined the White Ferns. "Absolutely they do, I guess being a little bit older and wiser it's how do you manage those emotions and energy going into that because those pinnacle events are so big and they seem to roll around every year. I think for me it's about how do I manage my expectations and my energy levels." Sport has been a huge part of Devine's life and admits the thought of retirement scares her a little. "Yes, in all honesty, that's probably something I've been toying with for the last 12 months or so and what does that look like, trying to make that transition as smooth as possible. It's a pretty scary concept for a lot of athletes but I've had fantastic support. It's going to be very different to what I've done for over half of my life, which is travelling the world playing cricket, which I've been very fortunate to do." Devine knows that in retirement she wants to stay involved in sport. "There's so many more opportunities opening up in the women's game whether that's coaching, commentating, being involved in the media side of things. Fingers crossed I can stay involved in some way, I certainly feel I've got a lot to give back."
Scoop
3 hours ago
- Scoop
Why Is The New Zealand Media Not Questioning The Implications Of The Gene Technology Bill?
Press Release – Lisa Er Despite the profound ethical, environmental, and societal implications, there has been a noticeable lack of critical scrutiny from the mainstream media, says Lisa Er. As the Gene Technology Bill advances through Parliament, New Zealand faces a pivotal moment in science, agriculture, and public health. The proposed legislation would significantly relax restrictions on gene technology, enabling broader research, development, and use of genetically modified organisms (GMOs) in New Zealand for the first time in nearly 30 years Yet, despite the profound ethical, environmental, and societal implications, there has been a noticeable lack of critical scrutiny from the mainstream media. 'It is plausible that political and economic factors are influencing the nature and depth of media coverage regarding the Gene Technology Bill,' says Lisa Er, author of a petition to 'halt the progress of the Gene Technology Bill and instead set up a Commission of Inquiry into the health and safety of people and the environment on behalf of citizens, to allow time for wider community and stakeholder consultation.' Key Concerns: Environmental Risks: The Bill paves the way for the release of genetically modified organisms (GMOs) into New Zealand's unique ecosystems, risking irreversible impacts on native species, biodiversity, crops, and the country's global clean, green brand. Lack of Public Consultation: The Government has failed to meaningfully consult with Māori, scientists, and the wider public, ignoring Treaty of Waitangi obligations and indigenous rights, community concerns about food safety, cultural values, and environmental protection. Threat to Export Markets: New Zealand's primary export markets, especially in Europe and Asia, have strict GM-free requirements. The Bill endangers market access and could jeopardize billions in export earnings. Undermining Precaution: The Bill abandons the precautionary principle that has underpinned New Zealand's cautious approach to gene technology, exposing the country to unknown long-term risks. Ignoring International Best Practice: Leading nations are strengthening, not weakening, their oversight of gene technologies in response to new scientific evidence and public concern. Insufficient Public Debate: The bill has generated over 1,500 public submissions, reflecting deep divisions and strong opinions across the country. The removal of labelling GE is of considerable public concern. Why has the minimal media coverage largely focused on official statements and the potential benefits, with little attention paid to the risks, opposition viewpoints, or the broader societal debate that is unfolding in submissions and community discussions? Risk Oversight and Regulatory Gaps: the bill will open the door to unintended consequences, including ecosystem disruption, cross-contamination of crops, and unclear long-term health effects Transparency and Accountability: Some have questioned whether the bill is being rushed or if consultation has been adequate, particularly given the timing of the public submission period over the summer holidays Media outlets have an essential role in holding lawmakers accountable and ensuring transparency in the legislative process, and these risks deserve deeper journalistic investigation and public explanation. A Call to Action for the Media: We urge New Zealand's journalists and editors to fulfil their democratic duty by: – Investigating the full range of concerns about the Gene Technology Bill, including those raised in public submissions. – Highlighting the ethical, cultural, and environmental questions that remain unresolved. – Providing balanced, evidence-based coverage that empowers New Zealanders to make informed decisions about the future of gene technology in their country. 'The Gene Technology Bill represents a generational shift in New Zealand's approach to biotechnology', says Er. 'The public deserves robust, critical journalism that examines not only the promises but also the very real perils of this legislation.' Lisa Er, founder of Lisa's Hummus Issued in the public interest to encourage transparent, balanced, and investigative reporting on a matter of national importance Petition with over 4,000 signatures Petition request: That the House of Representatives halt the progress of the Gene Technology Bill and instead set up a Commission of Inquiry into the health and safety of people and the environment on behalf of citizens, to allow time for wider community and stakeholder consultation. Petition reason: I consider the Gene Technology Bill has failed to follow sound and fair processes by not consulting enough with the public and other stakeholders. I believe there is inadequate consideration of Te Tiriti obligations, and insufficient requirements to protect people and the environment from the risks of GE contamination. A range of gene editing techniques would be excluded from regulation. This would mean GE products would enter the environment and food supply untested, unregistered and unlabeled.
