What is this small jelly blob on a beach in Maine?

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The Question: I saw a couple of clear jelly blobs at the beach and am trying to figure out what they are. They look just like the pictures of beached sea gooseberries, round with faint inner stripes and the diameter is about the size of a half-dollar. No tentacles, though. And from what I’ve read, gooseberries are only found on the west coast. These were found at the beach in Ogunquit, Maine. They don’t match the description or images of the Moon Jelly in your other post, either (moon jellies). Any ideas??

Submitted by: Sara, Maine, USA

(click on photos and graphics to expand)

sea gooseberryThe Short Answer: Sea gooseberries are found all over the world. What might be confusing you is that one species, Pleurobrachia bachei, has a Wikipedia entry that comes up high in “sea gooseberry” searches. As the article states, P. bachei is, in fact, only found in the Pacific. But other closely related species are definitely found in Maine. As for the tentacles, they often get broken off, or disintegrate when gooseberries are washed up on the beach.
sea gooseberry
More Information: Sea gooseberries are small gelatinous marine creatures that seem similar to jellyfish (phylum Cnideria). Sea gooseberries are members of the phylum Ctenophora, the “comb jellies.” Despite the similar appearance, comb jellies and jellyfish are in different phyla – a major taxonomic and evolutionary distinction – which suggests that sea gooseberries and jellyfish are not closely related. Like many jellyfish, however, comb jellies capture microorganisms floating in sea water. Though there aren’t many Ctenophores in the world, with only a couple hundred species, some can reach high local densities and when they do, many end up washed up on beaches.

Here’s a very cool video showing swimming sea gooseberries at the Vancouver Aquarium:  https://www.youtube.com/watch?v=fOJJxnNL4SY

gooseberryWhy are they called sea gooseberries: This photo shows that sea gooseberries bear a resemblance to the gooseberry, (Ribes uva-crispa), a small fruit found in Europe, the Middle East and North Africa.

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Photo Credits: Gooseberry: “Stachelbeeren”. Licensed under CC BY-SA 3.0 via Wikimedia Commons –http://commons.wikimedia.org/wiki/File:Stachelbeeren.jpg#/media/File:Stachelbeeren.jpg

Cite this article as: Pelletier, TC. (June 12, 2015). What is this small jelly blob on a beach in Maine? Retrieved from http://askanaturalist.com/sea-gooseberries/ on October 22, 2017.

One thought on “What is this small jelly blob on a beach in Maine?”

  1. These are truly fascinating creatures. I once went to a beach where the water was crammed full of these small gelatinous blobs but I can’t tell if they were sea gooseberries or salps.

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