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Tag: jellyfish

Jellyfish sleep, shark-sucking bots, mole crab parasites, and more! Monday Morning Salvage: September 25, 2017

Posted on September 25, 2017September 25, 2017 By Andrew Thaler
Weekly Salvage

Fog Horn (A Call to Action)

  • The fight for our Marine National Monuments isn’t over. We now know of the contents of Zincke’s monument review memo, and it is not good. The DOI wants to see commercial fishing return to the Pacific Remote Islands and Rose Atoll Marine National Monuments. Longline fishing in these regions has historically been conducted by foreign fishing fleets which have been documented using slave labor. Many ecologists believe that maintaining these protected zones serve as a refuge that boost populations of many important commercial fish and improve the overall health of the fishery. Any change to monuments created under the Antiquities Act must be approved by congress. You’ve got a lot of reason to call you representatives this week, so why not add “I opposed the reintroduction of ecologically and economically destructive commercial fishing to the Pacific Remote Islands and Rose Atoll Marine National Monument.” to your script?

Flotsam (what we’re obsessed with right now)

  • Jellyfish sleep. Mind. Blown.
  • Our Pacific Monuments are also extremely important scientific sites. Commercial fishing could jeopardize decades of research efforts in the remote Pacific. Scientists pan proposal to open pristine Pacific islands to fishing.
Palmyra Atoll. Erik Oberg/Island Conservation/Flickr

Read More “Jellyfish sleep, shark-sucking bots, mole crab parasites, and more! Monday Morning Salvage: September 25, 2017” »

One-eyed sea eagles, deep reefs, crispy jellyfish, and more! Monday Morning Salvage: August 7, 2017.

Posted on August 7, 2017 By Andrew Thaler
Weekly Salvage

Fog Horn (A Call to Action)

  • One week left! The deadline for comments on Marine National Monuments and National Marine Sanctuaries has been extended due to overwhelming responses. You now have until August 14, 2017 to leave a comment. Scientists, researchers, explorers, and conservationists with particular ties to the Mariana Trench Marine National Monument can sign on the this letter co-authored by me, James Cameron, and numerous researchers who’s worked has benefited from the Mariana Trench.
  • Chasing Genius: Andrew has applied for a National Geographic Chasing Genius Award to fund more development for the OpenCTD and Oceangraphy for Everyone. Please share and like the video over at NatGeo!

Flotsam (what we’re obsessed with right now)

  • A Maine Lobsterman catching a one-eyed bald eagle struggling to swim has got to be a metaphor for something, right?

Read More “One-eyed sea eagles, deep reefs, crispy jellyfish, and more! Monday Morning Salvage: August 7, 2017.” »

Bony-eared assfish, shark swarms, ocean plastics, and more! The Monday Morning Salvage: May 15, 2017

Posted on May 15, 2017May 14, 2017 By Andrew Thaler
Weekly Salvage

Fog Horn (A Call to Action)

  • This is you last day to submit public comments in defense of the Environmental Protection Agency! The time to save the EPA is now!  If you don’t know quite what to say, I’ve  prepared a script for you.
  • 27 National Monuments are under review by the Department of the Interior. Our Nation Monuments are our National Treasures. Don’t let them be sold to the highest bidder! Submit formal public comments on the DOI Monument Review and make your voice heard.

Flotsam (what we’re obsessed with right now)

  • This bony-eared assfish, courtesy of Sheldon Comics. Go show the some love on Twitter and Patreon.

  • “You are paddleboarding next to approximately 15 great white sharks… exit the water in a calm manner.” When paddleboarding, this is not what you want to hear.

https://www.youtube.com/watch?v=C5SPMrmRMjE

  • But, of course: The Viral Video of 15 Sharks Circling Near Surfers in California Shows a Much Bigger Problem.

Read More “Bony-eared assfish, shark swarms, ocean plastics, and more! The Monday Morning Salvage: May 15, 2017” »

#TaxonomyFail: Salps, Jellyfish, and the Diablo Canyon Nuclear Power Plant

Posted on May 1, 2012November 4, 2013 By Andrew Thaler 26 Comments on #TaxonomyFail: Salps, Jellyfish, and the Diablo Canyon Nuclear Power Plant
Science

I’m a bit late to the party, but last week, several news outlets reported that the Diablo Canyon Nuclear Power Plant was taken offline by “jellyfish-like creatures” that clogged several cooling intakes. While most sources were careful to point out that these were “jellyfish-like” organisms, some secondary sources truncated the description and announced that “Nuclear Power Plant Knocked Offline By Tiny Jellyfish, The Invasion Has Begun”. Unfortunately, these organisms are salps, not jellyfish, and you’d be more correct to describe them as human-like rather than jellyfish-like.

Salps, photo by Lars Plougmann
Salps, photo by Lars Plougmann

Salps are free-swimming pelagic tunicates, one of the most basal members of the chordate phylum. While they superficially resemble jellies to the untrained eye, they are far more derived, possessing three tissue layers (compared to the jelly’s two), a primitive, larval notochord, a perforated pharynx, and the rudimentary beginnings of a centralized nervous system. They form large, clonal colonies that are able to take advantage of plankton blooms by rapidly producing more clones to capitalize on an unpredicatable food source. Although I don’t have first hand reports, this is likely what happened in Diablo Canyon, as warm water discharges from nuclear power plants can trigger massive plankton blooms. Far from a “jellyfish invasion”, this was probably the natural response of a predator to increased food availability.

Read More “#TaxonomyFail: Salps, Jellyfish, and the Diablo Canyon Nuclear Power Plant” »

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