As beaches reopen, Department of Agriculture warns of box jellyfish on Guam

Box jellyfish (file photo)

Guam residents are being asked to lookout for box jellyfish (Physalia physalis), by the Department of Agriculture’s Division of Aquatic and Wildlife Resources (DAWR) Fisheries.

The advisory comes as residents prepare to head back to beaches starting 8am Saturday, after Governor Lou Leon Guerrero relaxed the Island’s restrictions further.

DAWR says Box jellyfish can be found on the beach or in the water, especially on reef flats.

Box jellyfish are anticipated from October 10-12, 2020. Both box jellyfish and Indo-Pacific man-o-wars can sting even if washed on the beach and dead.

If you see a box jellyfish or Indo-Pacific man-o-wars, you’re being asked to contact DAWR Fisheries at (671) 735-0289/82/91/94 or email

(News Release from the Guam Department of Agriculture)