Social Media Sidebar


Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

Just because something doesn’t do what you planned it to do doesn’t mean it’s useless.


Thomas Edison

Rogue Geoengineering Project May Have Increased Salmon Numbers

Posted in Science on 20th Jul, 2014 04:55 AM by AlexMuller

California businessman Russ George made headlines in 2012 when he, in cooperation with a group from a Native Canadian community, dumped more than 100 tons of iron sulfate into the Pacific, some 200 miles off shore. The iron then triggered a bloom of plankton.


He apparently didn't ask anybody's permission, violated two United Nations conventions, and was widely condemned for taking on such a large project, a type of geoengineering, to alter the environment as he saw fit. Iron causes blooms of plankton to form because the element is required for the tiny plant-like cells to live, and is usually only present in small quantities at the surface. Places with strong upwelling currents, such as areas off the U.S. West Coast, often have higher levels of iron brought up from the deep ocean, and for that reason often have abundant plankton and sea life.

George's idea was to create this bloom to both absorb carbon dioxide (the plants need this greenhouse gas to grow) and to provide food for local salmon stocks. After the tiny cells capture carbon dioxide as they're growing, they eventually sink to the bottom and die, removing the gas from the atmosphere. A new study in the Journal of Plankton Research suggests that the plan may have actually worked better than previously thought to increase the number of crustacean zooplankton upon which young salmon feed. And, in turn, the number of salmon in this area has approximately doubled since 2010.
But it can't be proved that there is a causal relationship between the iron seeding experiment and the increased numbers of fish. Historically populations of fish have varied for many reasons, some of them unknown. It also isn't clear how much carbon dioxide the experiment sequestered. 

Tags: fishsalmonover fishinggeoengineeringoceannature

Read original article » Back to category


Author: Guest
Posted: 2014-07-20
Indeed, we can only speculate here that there is a link between these two events - damping of iron sulphate and increase in numbers of fish (salmon) - more controlled experiments are required Reply


Recent headlines

  • Posted in Hardware on 2019-01-19 15:00:04
    SpaceX Orbital Starship Prototype Built By June 2019 more
    Posted in Hardware on 2019-01-19 14:18:47
    Apple and Samsung Hardest Hit as Smartphone more
    Posted in Science on 2019-01-05 00:26:50
    China Lands Chang'e 4 on the Far Side of the more
    Posted in Science on 2018-12-31 00:24:45
    Support for Human Gene Editing to Fix Diseases in more
    Posted in Science on 2018-12-31 00:15:06
    Will Mimicking The Nervous System Advance more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs, more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target more

Recent Blog Posts

  • Posted by AlexMuller
    Even light drinking increases risk of more
    Posted by AlexMuller
    Researchers have discovered how to slow more
    Posted by AlexMuller
    Human retinas grown in a dish explain how color vision more
    Posted by AlexMuller
    The smartphone app that can tell you’re depressed before more
    Posted by AlexMuller
    Neural networks don’t understand what optical illusions more

Login to your Account

Login to your PlanetTech Account here

Remember me

Create a New Account

You just need username and password

The following errors occured:
Verify password:
Remember me