Earth Day: When is Green NOT Good?

Posted on April 22, 2017 by madamescientist

Algal Art What is the mysterious 3D whorl in this latest addition to Art or Science ? Look closer and there seems to be a scratch in top center..and is that a white speck of dust marring your monitor?

You may be surprised to learn that these delicate green swirls are an aerial view of a giant algal bloom floating in the Baltic Sea, captured by the orbiting satellite Sentinel-2A. The white speck heading into the “eye of the storm” is a ship. You can see the ship’s “wake”, caused by the propeller’s cutting through the floating algae as a straight dark line.

Annie, Fannie and Mike: They seem friendly enough, but these are actually nicknames for three types of cyanobacteria that account for the vast majority of algal blooms world-wide: Anabaena, Aphanizomenon, and Microcystis. Caused by eutrophication of water from fertilizer dumping, what could be bad about these temporary blooms of harmless sounding photosynthesizing microorganisms?  “Annie” and “Fannie” produce toxins that attack your nervous system. “Mike” makes microcystin, one of the most potent toxins on the planet. Even inhaling a few droplets of contaminated water can make you nauseous and dizzy, and larger doses kill. They grow best in warm water with lots of nutrients. Thanks to warming climate and fertilizer run offs, algal blooms are on the rise, starting as early as March and April.

As algal blooms grow, others die. Bacteria divide quickly, using up the oxygen supply. Fish and aquatic life are starved of oxygen. This leads to dead zones. Scientists are combating algal blooms through innovative strategies. One way is artificial destratification by mixing up upper, warm layers with deep, cooler water using propellers. This effectively starves algae and cyanobacteria of nutrients and light. Another way is biomanipulation by introducing aquatic plants that compete with algae or predatory fish that eat other plankton eating fish. Sadly, support for this research is at an all time low. That’s why we #MarchForScience today. Show your support for #EarthDay and support science!

 

Source: http://www.esa.int/spaceinimages/Images/2015/09/Eye_of_an_algal_storm

 
This entry was posted in Art or Science, Rajini Rao, Science and tagged , . Bookmark the permalink.

120 Responses to Earth Day: When is Green NOT Good?

  1. Jodi Kaplan says:
    April 22, 2017 at 1:58 pm

    (nice to “see” you again).

    Reply
  2. Rajini Rao says:
    April 22, 2017 at 2:00 pm

    Nice to be back 🙂 Thank you!

    Reply
  3. Debashish “Dev” Samaddar says:
    April 22, 2017 at 2:02 pm

    Holy ship! That is terrifying looking!! Not sure if I should thank you Rajini Rao or blame you for giving me the eebie-jeebies.

    Reply
  4. Lisa Louise Angonese says:
    April 22, 2017 at 2:06 pm

    Very fascinating. I love, algae. Thank you..

    Reply
  5. Sowmyan Tirumurti says:
    April 22, 2017 at 2:49 pm

    I checked to see the last post of yours I remember to have seen. It was from July 2015! Some continuity there between the previous post on Rio olympic pool to this algal storm!

    Reply
  6. Azlin Bloor says:
    April 22, 2017 at 3:38 pm

    A brilliant read, as always, Prof! It’s good to see one of posts again! Rajini Rao

    Reply
  7. Jay Conley says:
    April 22, 2017 at 4:00 pm

    March in solidarity if for no other reason; because Rajini Rao says its a good thing, which means its more than likely a good thing. Leave your very just petitions of equality for one day and help preserve the institutions of science for the very sake of science.

    Reply
  8. Subhajit Dutta says:
    April 22, 2017 at 8:46 pm

    Thank you for sharing such a wonderful article.. Being a student of Plant science, a topic on such is always fascinating.. ☺☺☺☺

    Reply
  9. R Prakash Prakash says:
    April 23, 2017 at 2:44 am

    Thanks for the information Rajini Rao​ 🙂

    Reply
  10. cobalt please says:
    April 23, 2017 at 3:06 am

    So very glad to see this post and YOU again! Hope you are well. Did you march for Science?

    Reply
  11. Rajini Rao says:
    April 23, 2017 at 3:01 pm

    Hi cobalt please and everyone else! I’m very well and so glad to see you all again. I hope to get back to posting on G+ (been busy juggling too many things, that’s all). Yes, I did march for science in Chicago where I was attending a science conference. It was a gorgeous day with ~40K turnout. Chris Robinson was with me! He has some great photos, I’ll ask if I can share them here.

    https://plus.google.com/photos/…

    Reply
  12. cobalt please says:
    April 23, 2017 at 6:07 pm

    Rajini Rao awesomeness!!!

    Reply
  13. Chris Robinson says:
    April 23, 2017 at 8:11 pm

    Hi Rajini Rao. Feel free to share away.

    Reply
  14. Sunil Bajpai says:
    April 24, 2017 at 11:11 am

    Happy to see you back! Great post, as always!! 🙂

    Reply
  15. Rajini Rao says:
    April 24, 2017 at 11:16 am

    Sunil Bajpai 🙏 Thanks!!

    Reply
  17. Susana Fares Mazloum says:
    April 25, 2017 at 12:46 am

    Rajini Rao welcome back ❤️ hope to see more of your posts!

    Reply
  18. Rajini Rao says:
    April 25, 2017 at 12:56 am

    Hi Susana M., so nice to see you again! Hope to get back to posting 🙂

    Reply
  19. Brooke Stoutamire says:
    April 25, 2017 at 3:06 am

    Welcome back Rajini Rao​!😃

    Reply
  20. TAIJ KRISHEN says:
    May 1, 2017 at 9:45 am

    Nice to see again Rajni Rao jee it is my pleasure where was you dear friend

    Reply
  22. ajit kumar says:
    May 5, 2017 at 4:47 pm

    Very nice Rajini rao

    Reply
  24. TAIJ KRISHEN says:
    May 9, 2017 at 4:13 am

    Rajni Rao you have not answered my question where was you

    Reply
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    March 6, 2018 at 6:42 am

    Earth Art what is the mysterious 3D whorl in this latest addition to Art or science? Look closer and there seems to be a scratch in top center… and is that a white speck of dust marring your monitor?

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    July 28, 2018 at 3:17 am

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