Portuguese Man-of-War Jellyfish Visit Miami Beach

by BeachHunter on March 29, 2010

man-of-war jellyfish on miami beach

A beautiful but dangerous Physalia stranded on Miami Beach. Photo courtesy of Ann McConnell. Click photos to enlarge.

March often brings strandings of Man-of-War jellyfish on Florida’s Atlantic coast beaches. Visitor Ann McConnell sent in these photos from Miami Beach, taken on March 8, 2010.

She noted that she saw about 30 of these creatures on the beach.  In late February several people sent photos of Purple Sea Snails on Fort Lauderdale Beach. The snails are often found with the Man-of-War.

Physalia physalis

Another angle on a Man-of-War, not technically a jellyfish, but a siphonophore, which is a colony of different animals living together.

A man-of-war can sting even after it dies.

A Man-of-War can sting long after it has stranded on the beach and died. Avoid all contact with the purple tentacles.

These are great photos. Many thanks to Ann for sharing them.

{ 16 comments… read them below or add one }

1 Alice ~ In ~ Sanibel March 29, 2010 at 10:43 pm

Growing up in Miami & living there for 26 years I remember these little..things. Thankfully only been stung once.They are pretty in a weird sort of way :)

2 Suzanna March 30, 2010 at 7:20 am

I’m glad you posted these pics. I’ve been checking out the Atlantic Beaches lately and have seen the warning signs but had no visual to go along with it. Thanks!

3 Lisa March 30, 2010 at 6:58 pm

They are back again on Anna Maria. My 18 year old son is there with my parents and he sent me a photo from his phone. We sent you pix of them last year too.

4 beachhunter March 30, 2010 at 8:26 pm

I’ll be down that way tomorrow. I’ll stop by the island and see if I can see any on the beach. The onshore winds we’ve been having are blowing them onto the beach. Thanks for the heads up!

5 JOEL April 5, 2010 at 9:22 pm

Hey guys, I live in miami, and I went to miami beach during the weekend “APRIL 4/5″ and I saw literally THOUSANDS of dead man o war all over the coast line, and people staring at them. Not many were inflated like that one, but there were some like that.

6 Nick February 5, 2011 at 7:51 pm

We were in the intracoastal today and saw hundreds in the water and on the shores. The water was a toxic soup. After kayaking for about 15 minutes i began feeling stings all over my stomach, back of legs and arms. Not enjoyable. Be careful out there!!!

7 beachhunter February 5, 2011 at 8:27 pm

Thanks for the update Nick. I’ll make mention of it on my Facebook page as well http://www.facebook.com/floridabeachhunter

So, you’re not even safe in a kayak!

8 user3004 February 6, 2011 at 8:44 am

Those jellyfish sting hard too!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
; O ; O

9 virgie peters February 9, 2011 at 12:50 am

I guess we won’t be going in the water when we stop to hang in Miami before we cruise to Jamaica for my birthday.

10 beachhunter February 9, 2011 at 9:48 am

Virgie, you can swim safely in the Atlantic on Miami Beach. I have done so several times. Just swim near a lifeguard and inquire as to whether any jellyfish have been seen and whether anyone has reported sea lice. However, I can understand why you might not want to take the chance since it is right before your birthday cruise….
Happy Birthday! (By the way, the Caribbean Sea has jellyfish too).

11 Renee March 3, 2011 at 8:22 pm

They are currently all over the beaches in Lauderdale-by-the-sea. Yesterday and today.

12 beachhunter March 3, 2011 at 11:59 pm

Thanks for the report Renee! These strong easterly winds are blowing them in from the Gulf Stream. Feel free to email pics if you have any.

or just email them to beachhunter[at]beachhunter.net

I’ll post them on the blog.

13 Ashley March 4, 2011 at 11:57 pm

I have some pictures of the ones that were all over Miami Beach yesterday – they are littered all over the sand, I think I literally saw thousands while jogging up and down the beach last night.

14 beachhunter March 5, 2011 at 12:24 am

Ashley, if you’d like to share your photos you can email them to me at beachhunter[at]beachhunter.net.

15 ProSwimmer April 11, 2011 at 11:10 am

Does anyone know the conditions right now – am coming to Ft Lauderdale April 13th – 18th and love to swim in the ocean but not with other beasts!

16 beachhunter April 11, 2011 at 11:44 am

Visit this web site: http://ci.ftlaud.fl.us/oceanrescue/index.asp
It has current beach info. Not sure how often it is updated, but the website also lists a beach conditions hotline that is updated daily: 954-828-4597

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