Sunday, November 01, 2009

Atlantic Ocean Life (What We Found on the Beach) Part 1

above: the bleached shell of an Atlantic blue crab
I have photos of alive blue crabs.
They will be posted in the future.
(Callinectes sapidus)

3 photos above: Limpets
We found the limpets all stuck together in colonies.

Above: the foot of a limpet

Sea lettuce (Ulva lactuca)

In August 2009, unprecedented levels of [sea lettuce] washed up on the beaches of Brittany, France, causing a major public health scare as it decomposed. The rotting leaves produced large quantities of hydrogen sulphide, a toxic gas. In one incident near Saint-Michel-en-Grève, a horse rider lost consciousness and his horse died after breathing the seaweed fumes; in another, a lorry driver driving a load of decomposing sea lettuce passed out, crashed and died, with toxic fumes claimed to be the cause[1]. Environmentalists blamed the phenomenon on excessive use of nitrates by pig and poultry farmers. (source: Wikipedia)

Lion’s Mane
(Cyanea capillata)

Also know as the winter jelly, the lion’s mane typically appears during colder months of the year. The bell, measuring 6-8 inches, is saucer-shaped with reddish-brown oral arms and eight clusters of tentacles hanging underneath. Cyanea are generally considered moderate stingers. Symptoms are similar to those of the moon jelly but, usually more intense. Pain is relatively mild and often described as burning rather than stinging. (source: Sea Science)

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  1. You found quite a bit of sea life. The sea lettuce story was amazing, though quite alarming. I hope that doesn't happen around your area.

  2. I never knew there are such things as a sea lettuce, a winter jelly, and limpets(which looked like ginger or barnacles to me). They're so amusing, but won't the winter jelly dry out and die lying on the sand like that?

  3. Hi distredddamsel! Unfortunately, the jellyfish was dead. I love going down to the shore and learning about all of these different life forms that we never see in the forested mountains.


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