March 25, 2026

#national: Marine Scientist Warns Fisheries Bill Risks Undermining Ocean Protections

Dale Husband Posted On March 25, 2026

A leading marine biologist is raising serious concerns about the Government’s proposed Fisheries Amendment Bill, warning it could weaken the very systems designed to protect Aotearoa’s already pressured marine environment.

Vince Kerr, who has spent decades working alongside hapū, community groups and councils on marine ecology and conservation, says the bill signals a shift away from science-based decision-making and locally driven stewardship – at a time when coastal ecosystems are under increasing strain.

Drawing on years of fieldwork and collaboration with iwi, Kerr believes the most significant concern is the potential erosion of protections that balance environmental limits with sustainable use. He points to a growing disconnect between policy direction and the realities being observed in marine habitats, including declining biodiversity, degraded coastal areas, and mounting pressure on fisheries stocks.

From his perspective, the strength of Aotearoa’s marine management has long rested on a combination of robust science, mātauranga Māori, and community engagement. The proposed changes, however, risk sidelining those elements in favour of more centralised or commercially driven approaches that may not adequately reflect ecological limits.

Kerr’s work has included supporting the establishment of rāhui, advising on marine reserves, and helping map ecologically significant areas. Through that experience, he says the tools that have proven most effective are those that empower communities to act early and decisively – particularly when ecosystems show signs of stress.

He warns that the bill could weaken those safeguards by making it harder to implement precautionary measures or by reducing the influence of local knowledge in decision-making processes. In practical terms, that could mean slower responses to environmental decline and fewer protections for vulnerable habitats such as coastal reefs, estuaries, and spawning grounds.

At a time when climate change is compounding pressures on ocean systems, Kerr argues that Aotearoa cannot afford to dilute its management framework. Instead, he advocates for strengthening the integration of science and kaitiakitanga, ensuring that iwi and local communities are not just consulted, but are central to decision-making.

A future-focused fisheries model, he says, would prioritise ecosystem health first – recognising that long-term sustainability depends on maintaining the balance of marine environments rather than maximising short-term yield. That approach would see stronger protections for key habitats, better monitoring of fish stocks, and clearer alignment between policy and ecological evidence.

Kerr also points to practical steps that could be taken immediately. These include expanding the use of rāhui where needed, accelerating the establishment of marine reserves, and investing in comprehensive ecological mapping to guide decisions about fishing activity. He also highlights the importance of co-governance arrangements that give iwi a meaningful role in managing marine resources in line with tikanga and local priorities.

For communities across Tāmaki Makaurau and beyond, the health of the moana is not just an environmental issue, but a cultural and economic one. The concern now being raised is that without stronger protections – not weaker ones – the long-term wellbeing of those ecosystems, and the communities that rely on them, could be placed at risk.

As debate around the Fisheries Amendment Bill continues, voices from the science and conservation community are making it clear that the direction taken now will shape the future of Aotearoa’s oceans for generations to come.