Salt-Water Fish Extinction Seen By 2048
Study By Ecologists, Economists Predicts Collapse of World Ocean Ecology
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Global Warming
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That's when the world's oceans will be empty of fish, predicts an international team of ecologists and economists. The cause: the disappearance of species due to overfishing, pollution, habitat loss, and climate change.
The study by Boris Worm, PhD, of Dalhousie University in Halifax, Nova Scotia, -- with colleagues in the U.K., U.S., Sweden, and Panama -- was an effort to understand what this loss of ocean species might mean to the world.
The researchers analyzed several different kinds of data. Even to these ecology-minded scientists, the results were an unpleasant surprise.
"I was shocked and disturbed by how consistent these trends are -- beyond anything we suspected," Worm says in a news release.
"This isn't predicted to happen. This is happening now," study researcher Nicola Beaumont, PhD, of the Plymouth Marine Laboratory, U.K., says in a news release.
"If biodiversity continues to decline, the marine environment will not be able to sustain our way of life. Indeed, it may not be able to sustain our lives at all," Beaumont adds.
Already, 29% of edible fish and seafood species have declined by 90% -- a drop that means the collapse of these fisheries.
But the issue isn't just having seafood on our plates. Ocean species filter toxins from the water. They protect shorelines. And they reduce the risks of algae blooms such as the red tide.
"A large and increasing proportion of our population lives close to the coast; thus the loss of services such as flood control and waste detoxification can have disastrous consequences," Worm and colleagues say.
The researchers analyzed data from 32 experiments on different marine environments.
They then analyzed the 1,000-year history of 12 coastal regions around the world, including San Francisco and Chesapeake bays in the U.S., and the Adriatic, Baltic, and North seas in Europe.
Next, they analyzed fishery data from 64 large marine ecosystems.
And finally, they looked at the recovery of 48 protected ocean areas.
Their bottom line: Everything that lives in the ocean is important. The diversity of ocean life is the key to its survival. The areas of the ocean with the most different kinds of life are the healthiest.
But the loss of species isn't gradual. It's happening fast -- and getting faster, the researchers say.
Worm and colleagues call for sustainable fisheries management, pollution control, habitat maintenance, and the creation of more ocean reserves.
This, they say, isn't a cost; it's an investment that will pay off in lower insurance costs, a sustainable fish industry, fewer natural disasters, human health, and more.
"It's not too late. We can turn this around," Worm says. "But less than 1% of the global ocean is effectively protected right now."
Worm and colleagues report their findings in the Nov. 3 issue of Science.
SOURCES: Worm, B. Science, Nov. 3, 2006; vol 314: pp 787-790. News release, SeaWeb. News release, American Association for the Advancement of Science.
By Daniel DeNoon
Reviewed by Louise Chang
Copyright 2006, WebMD Inc. All rights reserved.



Don't expect any meaningful action from our current crop of leaders. They are too busy substituting religion for science. Too busy trying to breathe life back into the Snopes trial. Too busy trying to discredit repeatable, demonstable, fact based truths of how the universe is constructed, how plants grow, how energy is transformed and moved etc.
Another reason to vote. Not just to get this country back on the right path, but to start cleaning up our world and develop ways to feed, clothe, house, move and grow without polluting ourselves out of existence.
It is, of course, only proper and relevant that we pay some very close attention to the "farming" of the sea for the same reasons that we institute new ideas and procedures in farming the land. I believe that we are currently doing that, maybe not to the extent necessary, but certainly to an extent that we will not be "fishless" in a mere 40 years!
When the time comes for changes to actually effect us it's not going to matter if your Republican, Demorcrat or Liberal, WE are all humans and we are doing this!
The credibility of science not withstanding - whether these guys are grandstanding or not doesn't change the fact that the oceans are in big trouble. everyone knows it - but some folks prefer to wait until those little cans of Tuna on the shelf at the store vanish. The fact is that coral bleaching, dead spots in the Gulf of Mexico, Mercury in our fish, and the increasing difficulty fishermen have making a living are all verifiable facts.
We figured out years ago that if you rotate your crops your field will not *** out on you - is this so difficult a notion to translate to the oceans?? C'mon, people!!
the author's name is work - as in fishing bait
i have recognized this problem in minnesota in the past 5 years in minnesota, when i go up north to fish there just isn't anymore big fish or a population of good size fish-there is so much to argue about this issue and just like no one believed that global warming is happing they'll just let it go till it's too late!-the mercury level has also gone up in most bodys of water so you really can't eat that much fish anymore(because of global warming), and with all these fancy resturants ordering all these expensive fish dinners is obserd,who really NEEDS these seafood dinners,just take vitamins that support the nutreints of seafood. the fish and seafood industry needs to settle down before they really struggle to find that artic crab or lobster, i'm sure they can find some other thing to invest there money on to save the population of fish. there are so many things that effect this porblem i could write a book about it!
data out; what trends are they analyzing and how
did they reach this conclusion?
The article pointed out the location of their full report: "Worm and colleagues report their findings in the Nov. 3 issue of Science". Here's the abstract:
http://www.sciencemag.org/cgi/content/abstract/314/5800/787
Hopefully you can find the print edition of Science in your local library. (The state of affairs of easy public access to research papers is another matter altogether.) The lead author can probably answer any additional questions you have:
http://biology.dal.ca/us/f/worm/worm.html
There are 200 North Atlantic Right Whales left. That's hardly a sign of hope.
The ocean is as relevant as the forest in terms of the make-up of our atmosphere. Small life forms in the ocean, like trees, manufacture what we humans breathe.
Humans are catching 15,000 sharks every hour-- and only eat the fins. Sharks kill 5 humans every year. We have thrown off the large animal populations in the sea, and the smaller ones will be affected, down to the algae. The human population grows explosively while almost every other large animal species is down to record low numbers and dropping. We're obsessively selfish, destructive, and nuts.
There are 200 North Atlantic Right Whales left. That's hardly a sign of hope.
The ocean is as relevant as the forest in terms of the make-up of our atmosphere. Small life forms in the ocean, like trees, manufacture what we humans breathe.
Humans are catching 15,000 sharks every hour-- and only eat the fins. Sharks kill 5 humans every year. We have thrown off the large animal populations in the sea, and the smaller ones will be affected, down to the algae. The human population grows explosively while almost every other large animal species is down to record low numbers and dropping. We're obsessively selfish, destructive, and nuts.
My quote is probably not verbatum,but the reasonong is clear;we must do better with regard to our stewardship of this planet.Native Americans nurtured,replenished,conserved had respect for mother Earth
Who then is/was the barbarian?
Gee, last week two people died from rabies. This week four people died from rabies. IF THIS TREND CONTINUES then in about 31 weeks 8 billion people will have died from rabies.
I'm astounded that this garbage was published in a peer-reviewed journal.
Despite the prediction of extinction the study actually has some positive conclusions. Their findings indicate that existing efforts to protect marine ecosystems work, they just need to be done on a larger scale. They also found that economic income (from both fishing and tourism) increased when waters were protected.
Seriously folks, read the article before dismissing it as "garbage science"... it's at your local library.
James
Despite the prediction of extinction the study actually has some positive conclusions. Their findings indicate that existing efforts to protect marine ecosystems work, they just need to be done on a larger scale. They also found that economic income (from both fishing and tourism) increased when waters were protected.
Seriously folks, read the article before dismissing it as "garbage science"... it's at your local library.
James
I have to agree with diddineye. It was the industrialization of this land that has brought it to the position it is in today. No regard for the flora and fauna in whatever a business decided to exploit. We have rivers in Montana and Idaho that are just now coming back from to a productive state after the mining activities in the past(we're talking the 1800's).
Please don't think I'm an environmentalist, I tend to stand on the conservation platform. Taking care of where you are to allow it to be more productive for you in the future.
The pursuit of the dollar has caused more ruin, of not just the natural world, but of people's lives as well.
As to whether our oceans will be devoid of life in 42 years, we'll have to see. With the decline of the coral reefs worldwide and the habitat they provide(from other studies), this study may be onto something.
It is time for man to conserve what is available to him and to replenish that which he takes.
There used to be enormous trees, and forest covering most of the east coast, the likes of which no living human has seen.
In the late 1960's the oceans were touted as the food source that would feed the world. They will be gone soon.
YOu can't see what is not there, so you don't know that it is missing.
I remember in the late 1960's or early 1970's when the staid and conservative National Geographic magazine came out with an issue that said that we are in the greatest extinction since the Permian.
That one took eons to recover from. All our recorded history is an eyeblink in the scale of time that evolution of major taxa occurs. All the changes we are seeing are happening in a coupel hundred years. This is INSTANT.
Dismissing these changes as insignificant is the single greatest mistake we are making. If the ocean ecosystem crashes is could well affect the atmosphere. Most primary production is in the oceans, that is the gas exchange organ for the planet.
Can we as a species be smart? One thingI do know. People protect what they love. Learn, then teach about stewardship, beauty, connection, diversity, sutainability, and persistence.
Time to turn, and to step away from the edge.
There used to be enormous trees, and forest covering most of the east coast, the likes of which no living human has seen.
In the late 1960's the oceans were touted as the food source that would feed the world. They will be gone soon.
YOu can't see what is not there, so you don't know that it is missing.
I remember in the late 1960's or early 1970's when the staid and conservative National Geographic magazine came out with an issue that said that we are in the greatest extinction since the Permian.
That one took eons to recover from. All our recorded history is an eyeblink in the scale of time that evolution of major taxa occurs. All the changes we are seeing are happening in a coupel hundred years. This is INSTANT.
Dismissing these changes as insignificant is the single greatest mistake we are making. If the ocean ecosystem crashes is could well affect the atmosphere. Most primary production is in the oceans, that is the gas exchange organ for the planet.
Can we as a species be smart? One thingI do know. People protect what they love. Learn, then teach about stewardship, beauty, connection, diversity, sutainability, and persistence.
Time to turn, and to step away from the edge.
There used to be enormous trees, and forest covering most of the east coast, the likes of which no living human has seen.
In the late 1960's the oceans were touted as the food source that would feed the world. They will be gone soon.
YOu can't see what is not there, so you don't know that it is missing.
I remember in the late 1960's or early 1970's when the staid and conservative National Geographic magazine came out with an issue that said that we are in the greatest extinction since the Permian.
That one took eons to recover from. All our recorded history is an eyeblink in the scale of time that evolution of major taxa occurs. All the changes we are seeing are happening in a coupel hundred years. This is INSTANT.
Dismissing these changes as insignificant is the single greatest mistake we are making. If the ocean ecosystem crashes is could well affect the atmosphere. Most primary production is in the oceans, that is the gas exchange organ for the planet.
Can we as a species be smart? One thingI do know. People protect what they love. Learn, then teach about stewardship, beauty, connection, diversity, sutainability, and persistence.
Time to turn, and to step away from the edge.
G Graydon
That is a blinkered but typical attitude and one usually adopted by people with an ax to grind EG:Fishing Companies.
The study does not have to be exact.If it is only 10% right then we are in trouble.Action needs to be taken before the collapse,if we wait till it happens it's way too late and it could take thousands of years to recover if it recovers at all.
G.Graydon.
Measures like this are introduced by politicians to make them look good and impress voters,most of whom do not know enough about it to understand how phony it is.
G Graydon
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by gimpy_0688
November 6, 2006 2:25 PM PST
- In the 80s, scientists ran many series of what the planet would be like in the future. What did they find? That our planet's resources were being depleted, extinction of species increased, basically that the world as we know it was coming to an end. These predictions were proved false. How? They ended up happening sooner than everyone thought.
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See all 41 CommentsMy point being that the damage cannot be reversed but future effects can be stopped. Do whatever you can to change the future. One person can make a difference, especially if everyone has that attitude.