News tagged with overfishing
Titanium dioxide film enhances the sun's natural disinfection power
The world population is estimated to be seven billion and all these mouths need feeding. With fears about overfishing and the sustainability of fish stocks in our seas fish farming is becoming big business. As with all farming ...
Jan 12, 2012 |
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Record $736k paid for single tuna fish in Japan
A deep-pocketed restaurateur shelled out nearly three-quarters of a million dollars for a single tuna, the most ever paid for the fish, at Japan's Tsukiji fish market on Thursday.
Jan 05, 2012 |
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EU launches new 6.5-bln fund to slash over-fishing
The European Commission unveiled a new 6.5-billion-euro fund Friday to help fishermen move towards sustainable fishing as part of an effort to save fish stocks.
Dec 02, 2011 |
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NOAA designates critical habitat for black abalone
NOAA's Fisheries Service today filed with the Federal Register a final rule that identifies black abalone critical habitat along the California coast. In February 2009, black abalone was listed as endangered ...
Oct 26, 2011 |
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Skill triumphs over fish scarcity and draws experienced anglers back to overfished lakes
Fishermen care about more than the quantity of fish in a pond. Access, beauty, distance from home and fishing regulations play into the choice of which lake to fish on a given Saturday. How deep into the woods will fishermen ...
Oct 18, 2011 |
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Crabs put the pinch on marshlands
If you take a quick glance at the marsh next to Saquatucket Harbor in Harwich Port, Mass., you will notice right away that some of the grass is missing. The cordgrass there, and all around Cape Cod, has been slowly disappearing ...
Sep 27, 2011 |
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Can we bring the grayling back to Michigan?
(PhysOrg.com) -- Overfishing and destruction of its habitat have driven the Arctic grayling from its native Upper Michigan waters. But Michigan Technological University biologists Nancy Auer and Casey Huckins ...
Aug 16, 2011 |
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Cod resurgence in Canadian waters
Cod and other groundfish populations off the east coast of Canada are showing signs of recovery more than 20 years after the fisheries collapsed in the early 1990s, according to research published today in ...
Jul 27, 2011 |
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Scientists warn of massive ocean extinctions
When we think of mass extinctions, we think of the dinosaurs. Nothing that could happen in the modern era, right?
Jun 27, 2011 |
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Modern fish communities live fast and die young
Fish communities in the 21st Century live fast and die young. That's the main finding of a recent study by researchers from the Wildlife Conservation Society who compared fish recently caught in coastal Kenya ...
Jun 23, 2011 |
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Panel: Problems with oceans multiplying, worsening
(AP) -- The health of the world's oceans is declining much faster than originally thought - under siege from pollution, overfishing and other man-made problems all at once - scientists say in a new report.
Jun 20, 2011 |
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Madagascar marine resources plundered by international seafood markets
Fish catches in Madagascar over the last half-century are double the official reports, and much of that fish is being caught by unregulated traditional fishers or accessed cheaply by foreign fishing vessels. Seafood exports ...
Jun 17, 2011 |
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Shark guardians see momentum to save top predator
Shark defenders hope to capitalize on a series of victories in their fight against the lucrative fin trade, releasing a report Monday calling for sanctuaries to save the world's oldest predator.
Jun 06, 2011 |
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Shame and honor increase cooperation
Honour and shame work equally well in encouraging social cooperation, according to a new study by researchers at the University of British Columbia and the Germany's Max Planck Institute for Evolutionary Biology.
Other Sciences / Social Sciences
Jun 01, 2011 |
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Spanish resort in jellyfish alert
Authorities in the Spanish tourist hotspot of Benidorm said Friday they have reopened its beaches to tourists after removing more than a tonne of dangerous jellyfish.
May 27, 2011 |
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Overfishing
Overfishing occurs when fishing activities reduce fish stocks below an acceptable level. This can occur in any body of water from a pond to the oceans.
Ultimately overfishing can lead to resource depletion in cases of subsidised fishing, low biological growth rates and critical low biomass levels (e.g. by critical depensation growth properties). For example, overfishing of sharks has led to the upset of entire marine ecosystems.
The ability of a fishery to recover after overfishing depends on whether the ecosystem conditions are suitable for the recovery. Dramatic changes in species composition can result in an ecosystem shift, where other equilibrium energy flows involve species compositions other than those that had been present before. For example, once trout have been overfished, carp might take over in a way that makes it impossible for the trout to re-establish a breeding population.
For more information about Overfishing, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
