The natural filtration abilities of nearly 50,000 “small but mighty” oysters have been harnessed in Jersey as part of a new eco initiative to improve water quality.
Ports of Jersey has said the mature oysters, which have a combined weight of nearly 6,000kg, have been deployed to enhance the ecological health of St Helier Harbour.
9.5m litres filtered daily
They are collectively capable of filtering around 9,500,000 litres of water daily.
The project uses triploid oysters, which are sterile and do not reproduce. This allows them to grow faster and remain plump year-round, providing consistent water filtration.
They are also safe for marine environments and are commonly used in aquaculture due to their resilience and efficiency.
“Small but mighty”
Head of Maritime Operations, Louise Stafford, said: “Oysters, small but mighty, possess an incredible ability to filter water.
“We are aiming to harness this natural skill to further improve water quality in the harbour.”
She continued: “We’re grateful to the Jersey Oyster Company, who have helped to provide these Triploid Oysters, which will play a crucial role in filtering the water.
“We’re now considering similar projects in other areas of our harbour.”
The oysters have been placed beneath Albert Pier, under the marina access ramp, and next to the accommodation pods.
For a “cleaner, healthier and more sustainable” harbour
Their health, and effectiveness in improving water quality, will be closely monitored to help inform future environmental initiatives.
Chris Le Masurier, the owner of the Jersey Oyster Company, added: “We are incredibly grateful to be collaborating with Ports of Jersey on this innovative project.
“This initiative not only highlights the remarkable natural abilities of oysters but also underscores our commitment to sustainability.
“By working together, we aim to make St Helier Harbour a cleaner, healthier, and more sustainable environment for future generations.”