Jellyfish that caused mass farmed salmon deaths making a troubling return to Norway

This particular jellyfish species led to mass deaths in 1997 and 2001.

"During the last 20 years, we have only seen these many sightings in 2021 and 2022," the Norwegian Institute of Marine Research jellyfish scientist Tone Falkenhaug said. — "During the last 20 years, we have only seen these many sightings in 2021 and 2022," the Norwegian Institute of Marine Research jellyfish scientist Tone Falkenhaug said.Foto: Erling Svensen / Havforskningsinstituttet

Farmed salmon Norway Jellyfish Attacks Norwegian Institute of Marine Research Research

Published 14 November 2022, 05:01Updated 14 November 2022, 14:06