Unlocking Climate Solutions: How Sea Urchins Could Revolutionize Our Fight Against Climate Change

A recent study showed it would cost $131 million to remove long-spined sea urchins from all reefs over 3,291 square kilometers. Surprisingly, this could yield benefits around $144 million. If only the most affected reefs were targeted, the cost drops to $43.9 million, but the benefits would still be substantial at about $92.1 million.

Dr. Paul Carnell, the lead researcher from RMIT University, believes the findings can help manage coastal waters all over Australia. He noted, “At first, it seems overwhelming. But once you consider the costs and benefits, there’s a clear path forward.”

Marine ecologist Scott Bennett from the University of Tasmania adds that trained divers can collect a ton of urchins in about three hours. Their populations have surged, especially in Tasmania, largely due to climate change and warming ocean currents. Despite this, Bennett sees a silver lining. Urchin roe is a sought-after delicacy in parts of Asia, selling for $275 per 100 grams. Harvesting these urchins from areas near healthy kelp forests can be ecologically effective.

Bennett stated, “This climate issue has real solutions that can benefit the reef significantly.” However, he cautioned that the urchin industry’s future is uncertain. It could either flourish or falter without proper support and incentives.

A taskforce recently proposed a $55 million federal investment for research and targeted culls, gaining backing from a 2023 Senate inquiry. The Department of Climate Change is currently reviewing these recommendations, emphasizing the complexities involved in managing the situation effectively.

The Invasive Species Council is wary of subsidizing commercial harvesting, fearing it might lead to negative outcomes and hinder long-term control strategies. Tim Low, a co-founder of the council, suggests that government agencies should take charge of control efforts instead of relying on industry incentives.

Senator Peter Whish-Wilson, chair of the recent inquiry, highlighted the need to focus on areas where urchins are just starting to overgraze. These “incipient barrens” can provide the best opportunities for biodiversity protection while still allowing for sustainable fishing.

As sea urchin populations rise, effective management remains crucial. Understanding the balance between ecological health and economic opportunity is vital in addressing environmental challenges today. For more insights, you can check out resources such as the Department of Energy and Environment.

Source link