News tagged with fish stocks

Climate 'Tipping Points' May Arrive Without Warning, Says Top Forecaster

(PhysOrg.com) -- A new University of California, Davis, study by a top ecological forecaster says it is harder than experts thought to predict when sudden shifts in Earth's natural systems will occur -- a ...

Space & Earth / Environment

created Feb 09, 2010 | popularity 3.6 / 5 (35) | comments 46 | with audio podcast

Geologists show unprecedented warming in Lake Tanganyika

Lake Tanganyika, the second oldest and the second-deepest lake in the world, could be in for some rough waters.

Space & Earth / Earth Sciences

created May 16, 2010 | popularity 4.1 / 5 (26) | comments 37 | with audio podcast

Oceans in distress foreshadow mass extinction

Pollution and global warming are pushing the world's oceans to the brink of a mass extinction of marine life unseen for tens of millions of years, a consortium of scientists warned Monday.

Space & Earth / Environment

created Jun 20, 2011 | popularity 4.3 / 5 (20) | comments 22

Ocean acidification is accelerating and severe damages are imminent

Urgent action is needed to limit damages to marine ecosystems, including coral reefs and fisheries, due to increasing ocean acidity, according to 155 of the world’s scientific experts who will release the Monaco Declaration ...

Space & Earth / Environment

created Jan 30, 2009 | popularity 2.8 / 5 (25) | comments 27

Fishing fleet working 17 times harder than in 1880s to make same catch

The UK trawl fishing fleet has to work 17 times harder to catch the same amount of fish today as it did when most of its boats were powered by sail, according to new research.

Biology / Ecology

created May 04, 2010 | popularity 4.2 / 5 (11) | comments 5 | with audio podcast

Ecosystems under threat from ocean acidification

Acidification of the oceans as a result of increasing levels of atmospheric carbon dioxide could have significant effects on marine ecosystems, according to Michael Maguire presenting at the Society for General Microbiology's ...

Space & Earth / Environment

created Mar 29, 2010 | popularity 3.9 / 5 (7) | comments 2

Ocean acidification may directly harm fish: study

(PhysOrg.com) -- Fossil fuel combustion, and with it the release of heat-trapping carbon dioxide (CO2), is still growing globally. Beyond climate change, this is also causing the world’s “other ...

Space & Earth / Environment

created Dec 13, 2011 | popularity 5 / 5 (5) | comments 7 | with audio podcast

Plan would ban U.S. commercial fishing in Arctic Ocean

Federal fishery regulators Thursday approved an unprecedented plan to ban U.S. commercial fishing in the Arctic Ocean.

Space & Earth / Environment

created Feb 06, 2009 | popularity 3 / 5 (7) | comments 0

Study shows drifting fish larvae allow marine reserves to rebuild fisheries

Marine ecologists at Oregon State University have shown for the first time that tiny fish larvae can drift with ocean currents and "re-seed" fish stocks significant distances away – more than 100 miles ...

Biology / Ecology

created Dec 22, 2010 | popularity 4.2 / 5 (5) | comments 0 | with audio podcast

'Illusion of plenty' masking collapse of two key Southern California fisheries

The two most important recreational fisheries off Southern California have collapsed, according to a new study led by a researcher from Scripps Institution of Oceanography at UC San Diego.

Biology / Ecology

created Sep 26, 2011 | popularity 4 / 5 (4) | comments 1

Double jeopardy: Tuna and billfish

A new study by top global fisheries experts presents an alarming assessment of several economically important fish populations. The analysis of 61 species of "scombrids," which include tunas, bonitos, mackerels ...

Biology / Ecology

created Jul 25, 2011 | popularity 5 / 5 (3) | comments 1 | with audio podcast

Gene-flaw, virus could be killing Pacific salmon

Massive die-offs among Canada's wild sockeye salmon could be due to a genetic flaw that causes immune weakness and could make viruses lethal, researchers said Thursday.

Biology / Plants & Animals

created Jan 13, 2011 | popularity 2.8 / 5 (5) | comments 0

Closing recreational fishing areas for shorter times could benefit fish and fishermen

(PhysOrg.com) -- A new model that analyzes the complex factors involved in recreational fishing has shown that modeling can lead to some unforeseen results. Among the model’s surprising conclusions is ...

Biology / Ecology

created May 26, 2011 | popularity 4.3 / 5 (3) | comments 0 | with audio podcast report

Fading fish stocks driving Asian sea rivalries

Maritime incidents in the East and South China Seas, such as the one that sparked a major row between China and Japan, could intensify in a fight over dwindling fish stocks, experts say.

Space & Earth / Environment

created Nov 16, 2010 | popularity 5 / 5 (2) | comments 3

Growing hypoxic zones reduce habitat for billfish and tuna

Billfish and tuna, important commercial and recreational fish species, may be more vulnerable to fishing pressure because of shrinking habitat, according to a new study published by scientists from NOAA, The ...

Space & Earth / Environment

created Dec 22, 2010 | popularity 5 / 5 (2) | comments 0

Fish stock

Fish stocks are subpopulations of a particular species of fish, for which intrinsic parameters (growth, recruitment, mortality and fishing mortality) are the only significant factors in determining population dynamics, while extrinsic factors (immigration and emigration) are considered to be insignificant.

For more information about Fish stock, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: fish , species