Jellyfish Take Over As Humans Overfish And Change Climate

Jellyfish Take Over As Humans Overfish And Change Climate notes Tim Flannery at the New York Review of Books. Jellyfish are some of the most ancient creatures in existence, the fossil record shows. These zombie-like, sometimes lethal creatures can reproduce clonally and “de-grow” in bad times; one species, if shredded, can even re-form and regrow – it’s licked the “eternal youth” challenge. Via overfishing and creating warmer, more acidic oceans through global warming, humans are removing the upper levels of the food chain (fish) and encouraging the proliferation of jellyfish, which clog fishing nets and intake pipes, including those that lead to nuclear plants. One clogging event lead to a major blackout in the Philippines. Small, very lethal jellyfish are also spreading; a bloom of lethal jellyfish threatened a 2000 Olympic swimming event in Australia. A relative of the lethal Australian box jelly has now been sighted off the Florida coast. Unlike most jellyfish that drift, box jellies actively hunt and can move up to 21 feet per minute.  Once dominant in ancient oceans, jellyfish are once again starting to dominate – with a lot of help from us.

 

Join the swelling numbers of voters TELLING Congress they’ll vote for Clean Energy candidates here: http://signon.org/sign/we-are-the-clean-99?source=c.em.cp&r_by=487176 . This is an ongoing campaign (the next Congressional election is in 2 years!) so please, spread the word. It’s our way of telling Congress that a strong clean energy voting bloc is out there. This is how YOU can make a difference.

 

For more on Climate Change, check out my weekly column at the HuffingtonPost, Climate Change This Week : http://www.huffingtonpost.com/author/index.php?author=mary-ellen-harte

 Find this interesting?  Please re-post it!

Source

http://www.nybooks.com/articles/archives/2013/sep/26/jellyfish-theyre-taking-over/?pagination=false

 

Advertisements

About melharte

Mel (Mary Ellen) Harte is a biologist (PhD) and climate change educator. She co-authored the free online book, COOL THE EARTH, SAVE THE ECONOMY, available at www.CoolTheEarth.US, and writes the CLIMATE CHANGE THIS WEEK column at the HuffingtonPost. Living summers in the alpine Rockies, she is on the frontlines of watching what climate change can do. Her diagnostic digital photographs of wildflowers have appeared in numerous publications.
This entry was posted in Uncategorized and tagged , , , , , , , , . Bookmark the permalink.

2 Responses to Jellyfish Take Over As Humans Overfish And Change Climate

  1. I have a number of excellent jellyfish fossils that i found in our area from around 270 million years ago. If humans keep up with not caring enough – and doing enough – to protect the environment… we (life) may be forced to revert back to primitive organisms like from 270 million years ago.

  2. Rachel says:

    Great. We’ve jellyfish AND giant hornets to look forward to.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s