A NIWA scientist says it is likely the large number of jellyfish that floated into Western Bay of Plenty waters last summer will continue again this year.
Dennis Gordon, principal scientist in NIWA's aquatic biodiversity division says global expert opinion suggests jellyfish numbers around the world are increasing.

NIWA scientists are seeking people who have been stung by the Lion's Mane jellyfish, pictured above.

He says it appears the jellyfish increase is connected to dwindling fish stocks and nutrients flowing out to sea as a result of land use.
'Fish are a natural predator to jelly fish and nutrients washing out to sea in coastal areas seem to effect plankton growth, which jellyfish feed on,” says Dennis.
Last summer, a high number of jellyfish stings were recorded in the Western Bay of Plenty.
Dennis is also seeking help from Western Bay of Plenty residents who have been stung by a new species of Lion's Mane jellyfish (pictured above).
'We want first hand reports of how it felt and how bad it was,” says Dennis.
The information will be used in a report being complied on the jellyfish species.
He believes the Lion's Mane species is different to the variety found in the Northern Hemisphere.
Anyone who believes they have been stung by the Lion's Mane jellyfish can contact Dennis via email at [email protected].