El Hierro – Underwater volcano heated seawater up to 65 degrees F

El Hierro – Underwater volcano heated seawater up to 65 degrees F

Killed or drove away all fish in the region.


El Hierro - Courtesy ENVISAT Satellite (European Space Agency)

When a new underwater volcano formed south of El Hierro island in October 2011, it was the first chance in 500 years to watch the local ecosystem evolve in response to an eruption, says this article on LiveScience.com.

Researcher Eugenio Fraile-Nuez of Spain’s Instituto Español de Oceanografía and his colleagues have been monitoring the volcano since then, measuring its effect on ocean temperature, salinity, carbon dioxide content and more.

“The eruption killed or drove away all of the fish in the region (though many were seen floating dead on the ocean’s surface), the researchers found. Some phytoplankton, or the floating plants that sit at the bottom of the ocean food chain, were able to adapt.”

“Over the crater, the water heated up by as much as 65 degrees Fahrenheit (18.8C), the researchers found. Dissolved oxygen in the water all but disappeared, decreasing by 90 percent to 100 percent in places. Meanwhile, carbon and carbon dioxide values shot up, and the pH of the water went down by 2.8, meaning it became more acidic.”

The water heated up by as much as 65 F? Gee, I wonder what is heating our oceans?

Carbon dioxide values shot up without any help from humans? Hmmmm.

“The underwater eruption killed a massive amount of plankton in deep waters. In their place, a community of carbon-eating bacteria sprung up, many of which shone with bright green fluorescence.”

The article then, predictably, goes on to link the eruption to global warming, saying that “increase in temperature, decrease in oxygen and a more acidic pH is exactly what scientists would expect to be the result of global warming for the ocean.”

Fraile-Nuez and his colleagues detailed their results online this week in the open-access journal Scientific Reports.

See entire article:
http://www.livescience.com/21396-underwater-volcano-eruption.html

Thanks to Laurel for this link


8 thoughts on “El Hierro – Underwater volcano heated seawater up to 65 degrees F”

  1. “The article then, predictably, goes on to link the eruption to global warming,….”

    Gag me with an oxygen-starved dead fish.

    • 🙂
      actually Gag the Idiot so called scientist with that fish.
      a fitting reward for Fishy science! 🙂

  2. The article somehow fails to mention that basaltic eruptions like el Hierro produce much sulfuric acid and SO2 both of which drop pH like a stone, as well as being very soluble in water. Plus toxic H2S, which also rapidly consumes free oxygen. No wonder fish asphyxiated. In November this eruption was producing something like 100 t/d of atmospheric SO2 according to Involcan, meaning much more dissolved on contact with the seawater at the underwater outlet. Such eruptions also can produce a lot of water soluble hydrofluoric acid, as did the Laki eruption in Iceland in 1783…causing the death of most of their livestock due to fluoride poisoning. HF is probably something fish might avoid, you’d think.

    But no, from the article you’d think CO2 has horns and a tail and is to blame for everything.

    You can see why people with a brain and an internet connection might distrust activists like this.

    • Hey Bruce! I especially enjoy it when they conjure up visions of faces melting with this statement…

      “…and the pH of the water went down by 2.8, meaning it became more acidic.”

      Sea water is alkaline. For something to become more of something, it must first BE that something.

      Geesh! Why not just hide under kids’ beds, and really give them a scare!

  3. amazing how determined they are to link warming with the least plausible excuses:-)
    there is simply NO comparison to the “in your immediate area” dose of toxic emissions from undersea vents and Co2 in the atmosphere.
    but still
    they keep flogging the dead cause.
    they also failed utterly to mention all the seriously toxic emissions expected by any volcano lave or vent..
    science?
    really?
    Fabrication and Omission and Assumptions are NOT science.

  4. Volcanoes cause warming ocean water and increasing CO2, not the other way around.

    Stupidiy rules, like usual !!!

  5. http://youtu.be/qzWMPeGkAWw Convince yourself…
    At the end: “nature has recovered again from teh volcano.” and: “It will take another 40 years until a next eruption could occur” – the latter being false: since June seismic activity has increased again at the western part of Island. Magma is moving again about 20 km below the surface. Yet, nature takes no toll from this so far. I expect more activity about July 11th. Watch http://www.ign.es/ign/resources/volcanologia/HIERRO.html

  6. Increase in temperature, decrease in oxygen and a more acidic pH is exactly what scientists would expect to be the result of global warming for the ocean, Fraile-Nuez said.

    Fraile-Nunez just got it backwards….its supposed to be :
    Global warming is the result of increase in temperature, decrease in oxygen and a more acidic pH in the oceans, this is exactly what scientists should expect to be the result of underwater Volcanoes .

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