Toheroa – a national treasure
Recently, Environment Southland sought feedback on potential vehicle restrictions on Oreti Beach to help protect the taonga shellfish species, toheroa. Vehicles cause significant damage to juvenile toheroa in particular, so it is hoped by restricting vehicle access to at least some of the beach, the population can thrive.
“We need to maintain the juveniles so that there’s enough for them to come back should something happen. Especially with the increased pressures from a changing climate,” says Michael.
He believes the El Nino conditions in certain years have had a strong impact on not just toheroa but also how well oysters and mutton birds have fared.
“We must be aware that from time to time there will be high mortality events, as happened in 1993 when probably three quarters of the toheroa population died. At the time, toheroa were tested for disease but none was found and starvation was considered a likely factor.”
Michael says it’s all about balance. “We have a responsibility for looking after these things. We know people value the beach, and driving on it. We need to provide for that while doing the least damage and helping the toheroa to thrive.”