Rising ocean temperatures are likely to lead to more slippery blooms in New Zealand in the summer, NIWA says.
A lion’s mane spleen grows. Source: NIWA
NIWA marine biologist Diana Macpherson says slippery blooms occur when water temperatures rise as slippers have more to eat.
“As a result, slippery numbers increase, and then conventional winds and currents can accumulate in dense groups and be applied to beaches,” said Macpherson.
Macpherson said foresters had identified a wave of ocean heat in the waters north of the North Island, and sea surface temperatures across the country have been above average since October.
Excessive fishing, pollution and warming also contributed to the issue of slippery blooms, she said.
The mane slapped the lion. Source: NIWA
Macpherson said while most rays in New Zealand waters were not bad, spears should be avoided if possible. Common species found at beaches in the country include the lion’s mane, the moon’s spear and the spotted spear.
The blooms can affect businesses such as salmon farming or invade beaches and swimwear.
In the event of a shellfish sting, Macpherson urged people to flush the area with seawater and remove any trapping cells or traps that could become stuck.
She advised people to then apply heat to relieve the pain and turn off the poison.
“Using urine to relieve sting is a popular misconception – there is no way to tell its pH and chemical appearance so it could make pain worse. ”