Author Topic: Only 10 percent of big ocean fish remain  (Read 242 times)

white Boy

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Re:Only 10 percent of big ocean fish remain
« Reply #15 on: May 25, 2003, 09:25:36 AM »
i dont like fish, lobster, shrimp, and crab is good
 

Z the laidback Virus

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Re:Only 10 percent of big ocean fish remain
« Reply #16 on: May 25, 2003, 11:30:59 AM »
i dont like fish, lobster, shrimp, and crab is good

And what has THAT to do with the world being destroyed by Homo sapiens? ::) ??? ???
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Immortal

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Re:Only 10 percent of big ocean fish remain
« Reply #17 on: May 25, 2003, 12:21:31 PM »
Nah dogg the food chain is part of life..Predetors and prey go one in one...If the amount of predetors fall the amount of prey fall. Polution is one of the main problems.
Pollution is only part of the problem...most of the problems are due to overfishing....you should be knowing this by now...common sense
« Last Edit: May 25, 2003, 10:07:12 PM by Immortal Tech aka Apocalypse »
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Immortal

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Re:Only 10 percent of big ocean fish remain
« Reply #18 on: May 25, 2003, 12:24:03 PM »
Also, its not just because of overpopulation....mainly fisherman want more money for more catches they make, thats why theres extensive overfishing. If ppl would simply quit over doing things, that would greatly help.
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Immortal

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Re:Only 10 percent of big ocean fish remain
« Reply #19 on: May 25, 2003, 01:30:35 PM »
I suggest some of you to read this article on the following link and understand an example of overfishing and its effects...

http://www.fisheries.ubc.ca/publications/news/antartica9oct2001.pdf

http://www.oceana.org/index.cfm?sectionID=11&fuseaction=3&pageID=124

Ocean Threats: Overfishing

Life in the oceans is bountiful but not infinite.  Worldwide more than three million fishing boats remove about between 70 and 90 MILLION tons of fish and shellfish from the oceans.  The United Nations Food and Agriculture Organization estimated in 1999 that 70 to 78 percent of worldwide marine fish stocks require urgent intervention to halt population declines and to rebuild species depleted by overfishing.

Overfishing to Extinction

Long thought to be resistant to the risk of extinction, several fish species around the world may now face being wiped out throughout their ranges, largely due to human-induced pressures, such as overfishing and habitat destruction.

 The American Fisheries Society recently identified 82 species as at risk of extinction in North American waters.  Among this list of severely depleted species are some of the world’s most prized food and game fish—several species of shark, skates, sturgeons, and groupers; Atlantic salmon; Atlantic halibut; and Pacific rockfish.

This level of overfishing may cause other populations of animals, and whole ecosystems, to crash.

Click here to view a series of maps that illustrate the massive decline of fish in the North Atlantic Ocean over the past hundred years.

Sea Otter Food Chain Collapse

The population of sea otters in Alaska’s Aleutian Islands has dropped by 95 percent since the 1980’s.

Although scientists are not sure why, it is probably related to increased attacks by killer whales, which have turned to eating sea otters because the population of the largest sea lions in the world, Steller sea lions, has dropped in the Bering Sea by 90 percent.

Sea lions eat fish, but at present the fishing fleet removes approximately four billion pounds of fish from sea lion habitat every year.  The sea lion declines started with the beginning of industrial fishing and appear to be linked to the disruption of the food web in Bering Sea waters.  In addition to sea otters and sea lions, the populations of other marine animals such as fur seals has dropped dramatically, as have the populations of many types of birds.

 No Oysters Means Murky Water

In many places overfishing has upset the balance of life between ocean plants and animals.  This change is most apparent in coastal regions, but may be impacting the entire ocean.

In the oceans most of the plants are microscopic algae.  These algae float in the water.  If the algae overpopulate the water it becomes green, brown or even red. Algae populations are kept in check by animals called filter feeders, which include clams, oysters, scallops, sardines and many other types of ocean life.  When people remove too many filter feeders, the algae is more likely to overpopulate, resulting in murky water.

For example, when Europeans first arrived in the Chesapeake Bay they could see 30 feet down.  They also found oyster reefs so large that ships could run aground on them.  Scientists estimate that the oysters filtered as much water as is held in the entire Bay every three days.  Scientists have also determined that this filtering helped to control pollution until the oysters were removed by wide-spread overfishing.  Today only about 1% of the oysters remain and Bay waters are murky and green despite attempts to reduce pollution levels.

How You Can Prevent Overfishing:

Get more info and take action at OceansAtRisk.com!
Stem the tide of overfishing by becoming an Oceana member! Click here.

Eat sustainably caught seafood.
What is Sustainable or Ocean-Friendly Seafood?

Seafood can be considered "ocean friendly" if it is caught, harvested or raised in a manner that does not deplete fish stocks, result in the unintentional capture of marine mammals and other ocean life, reduce water quality or harm ocean or coastal habitats. Ocean-friendly seafood can be either wild or farm-raised, though not all wild and farm-raised species can automatically be considered ocean friendly. For example, salmon farms can use up to four times the amount of wild fish for feed for each one pound of salmon. They can also cause significant water quality problems.

Why Choose Ocean-Friendly Seafood?

Americans love fish. Each year, U.S. consumers spend almost $50 billion on seafood. To most seafood lovers, there appears to be an ever-growing abundance and variety of seafood in their favorite restaurants and in their local supermarket.

Contrary to the perceptions of most consumers, however, fish and other seafood are a finite resource. Rising consumer demand here and abroad is depleting fishing stocks around the world. Currently, two-thirds of the world's major marine fisheries are already overfished, fully fished or depleted.

Ironically, much of the fish caught never makes onto the dinner plate. Almost one-third of the total world catch - over 27 million metric tons - is made up of "untargeted" fish, marine mammals, sea turtles and seabirds that are caught unintentionally as the result of unselective fishing gear and practices. The vast majority of this "bycatch" is discarded, either dead or dying.

Certain destructive fishing practices also damage marine habitats vital to fisheries, marine life and coastal communities. Bottom trawling and dredging destroy the fragile sea floor habitats that serve as living, breeding and nursery areas for many marine species.

Due to the health benefits and increased popularity of seafood in the United States, grocery stores and restaurants are stocking more and more seafood. This provides consumers with a wide range of dining options. The increased demand for seafood results in higher fish catch, taking a toll on marine life around the globe.

Some "ocean friendly" seafood choices include: wild Alaskan salmon, farmed tilapia, and hook-caught cod
« Last Edit: May 25, 2003, 01:59:40 PM by Immortal Tech aka Apocalypse »
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Immortal

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Re:Only 10 percent of big ocean fish remain
« Reply #20 on: May 25, 2003, 02:02:21 PM »
I suggest all of you should go through this link as it points all the factors of ocean threats

http://www.oceana.org/index.cfm?sectionID=11&fuseaction=3
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Re:Only 10 percent of big ocean fish remain
« Reply #21 on: May 26, 2003, 09:59:11 AM »
I don't eat fish so I don't care...PeAcE
 

ITW [the irish boy]

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Re:Only 10 percent of big ocean fish remain
« Reply #22 on: May 27, 2003, 10:19:46 AM »
Well its not as simple as stopping overfishing. Its the spanish who are destroying the irish fish stocks. Over-population has very little to do with it because fish isnt a major food compared to rice etc. However people are thinking short term in that they need to get more profit from the fishes. They dont see that there'll be no fish in a few years. Huge restrictions need to be put in place and need to be policed, but this doesnt solve the problem of what do the fishermen do? Perhaps a move into fish-farming? While not as fish-friendly, if it was done extensively for about 50 years then the fish populations could replenish. We do this in school, and it doesnt look promising...as technology advances, ships get more effiecient and fish are caught way more. However one good aspect of the advance is that special nets can be used to reduce catching the wrong fish.
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Re:Only 10 percent of big ocean fish remain
« Reply #23 on: May 31, 2003, 06:48:52 PM »
Well its not as simple as stopping overfishing. Its the spanish who are destroying the irish fish stocks. Over-population has very little to do with it because fish isnt a major food compared to rice etc. However people are thinking short term in that they need to get more profit from the fishes. They dont see that there'll be no fish in a few years. Huge restrictions need to be put in place and need to be policed, but this doesnt solve the problem of what do the fishermen do? Perhaps a move into fish-farming? While not as fish-friendly, if it was done extensively for about 50 years then the fish populations could replenish. We do this in school, and it doesnt look promising...as technology advances, ships get more effiecient and fish are caught way more. However one good aspect of the advance is that special nets can be used to reduce catching the wrong fish.

tru.. fish-farming and technology will very quickly replace deep-sea fishin and what-not. humans will soon domesticate and culture all forms and species of life. no stoppin it..

and desi way before.. its scientifically proven that humans are the only species that have the ability to reason.. hence the only species rendered able to value their life.
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