What is the deadliest jellyfish in Portugal?

The Portuguese man o' war is a conspicuous member of the neuston, the community of organisms that live at the ocean surface. It has numerous venomous microscopic nematocysts which deliver a painful sting powerful enough to kill fish, and has been known to occasionally kill humans.



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Swimming Safety in Portugal Portugal is lined by the Atlantic Ocean which offers swimmers cool waters and large waves, depending on the location. Caution should be taken for beaches connected to rivers or streams since currents may be strong.

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Never touch a jellyfish that's washed up on shore. Dead jellyfish still have venom in their tentacles that can sting on contact.

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