After analyzing several different kinds of data relating to
biodiversity, researchers have stated that overfishing, pollution, and
habitat loss will be responsible for a loss of most ocean species by
2048.
That’s when the world’s oceans will be empty of most fish, predicted an international team of ecologists and economists.
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.
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.
Large Fishery Operations Depopulate Species and... by PreventDisease
Large Fisheries Are a Contributor
Fisheries directly or indirectly affect the livelihood of over 500
million people all over the world. However, overfishing including the
taking of fish beyond sustainable levels is reducing fish stock and
employment in
many world regions.
This will continue globally until sufficient species depopulation curbs human behavior to feed mass markets for profits.
Few people realize how efficient these freezer trawlers are at fully
processing fish to customer specifications. They process fish into
fillets within hours of being caught. Some can process more than 300
tonnes of fish a day and can store more than 6,000 tons of graded and
frozen catch.
Operations such as this facilitate species depopulation due to
overfishing and encouraging habitat loss. This is the mass market
fishing industry which serves 90% of the major grocery retail sector.
NOAA oversees marine (or saltwater) fishing activities, but
freshwater fisheries and fish hatcheries are another story entirely. The
U.S. Fish and Wildlife Service is in charge of authorizing fish
hatcheries in the U.S. The department oversees 70 national fish
hatcheries in the United States. Every state has its own fishery office
to oversee and regulate fishing in that state’s lakes and rivers.
Wild fisheries around the world are in danger of deteriorating for
many reasons, including damage from pollution, environmental disasters
and climate change. But the biggest threat to many fisheries comes from
overfishing.
According to the NOAA’s report to Congress, the organization had
enough data to determine the overfishing status of 244 different fish
stocks. Of those, the NOAA said 41 are being overfished and 203 are
fished responsibly. But the NOAA doesn’t have enough data to determine
the status of 284 other fish stocks.
It’s important to remember that most commercial fishermen want to
avoid overfishing as much as environmentalists do. They rely upon fish
stocks to make their living. But the cycle of overfishing is
self-perpetuating.
Edible Fish Declining In Mass Numbers
With increasing pollution and radiation levels off the charts in our oceans,
wild fish are becoming as hazardous to our health as factory farmed meat.
Many species are so high in contaminants like mercury that their
health benefits are outweighed by their health risks. Others are flown
in from halfway around the world, but given labels that make you think
they were caught fresh earlier that morning.
Just two years ago a Purdue University scientist
urged federal officials to decide favorably on allowing genetically engineered salmon into the food supply
arguing that not doing so may set back scientific efforts to increase
food production. The argument came in direct contradiction to statements
made by the same scientist who found that releasing a transgenic fish
to the wild could damage native populations even to the point of
extinction.
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.
Researchers Analyzed Data From Large Marine Ecosystems
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.”
If you must eat fish, buy line caught to encourage that fish have
been caught using sustainable traditional fishing methods using hook and
line. This method has minimal environmental impact and as all fish are
caught live it ensures the fish are in top condition before being stored
in ice.
Marco Torres
is a research specialist, writer and consumer advocate for healthy
lifestyles. He holds degrees in Public Health and Environmental Science
and is a professional speaker on topics such as disease prevention,
environmental toxins and health policy.
Sources:
gpo.gov
cbsnews.com
oceana.org
preventdisease.com
Source article: Prevent Disease