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Portuguese Man O’War

Portuguese Man O’War are landing on our shores

30 September 2016 Latest News Local News National News News


Irish Water Safety is alerting the public to exercise caution on our south, west and northwest coastline
over the next few days. We have experienced tropical maritime air for almost two months now with
very little northerly winds, in addition sea water temperatures are approximately 15 degrees Celsius,
consequently we have seen one of the largest infestations of the Portuguese Man o’war land on our
western seaboard in over a hundred years.

There is a new moon on Saturday which will give us spring tides which will mean that we will have
larger exposed areas of coastline where we are likely to see these most venomous siphonophores or
to most of us Jellyfish. Surfers, kite surfers, swimmers, kayakers, divers and walkers need to keep a
vigilant eye open for these creatures which give a very strong sting and to some people can cause
anaphylactic shock or seizures. Local Authorities from Cork, Kerry, Clare, Galway, Mayo and Donegal
have reported them on their shores mainly in south and southwest facing bays. There have been
reports of in excess of 80 landing on the South Harbour in Cape Clear an in excess of 20 on Keel Bay
in Achill.

  • Ensure you don’t get stung yourself when aiding others.
  • Remove any attached tentacles with a gloved hand, stick or towel.
  • Do not rub the affected area, this may result in further venom release.
  • Rinse the affected area with sea-water (do not use fresh water, vinegar or urine)
  • Apply a “dry cold pack” to the area (i.e place a cold pack or ice inside a plastic bag & then wrap
    this package in a t-shirt or other piece of cloth).
  • Seek medical attention if there is anything other than minor discomfort (Please note: The sting
    can cause anaphylactic shock, if you are feeling unwell go to A&E for treatment).

Members of the public should report the sightings of these two jellyfish to the relevant Local Authority or local
Water Safety Development Officer
To download a Jellyfish photo identification Card and First aid treatment information click here

 Update – 3:30pm: Portuguese Man of War Jellyfish have been Reported Washed up on Tramore Beach this afternoon, according to Waterford City & County Council 


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