Sentences with phrase «shark populations»

Loss and devastation of shark populations around the world.

In the 1970s and 1980s, relative abundance data indicated that white shark populations declined, likely due to expanding commercial and recreational shark fisheries.

This law will help protect global shark populations for many years to come.

Scientists have known about the dramatic decline in shark populations for over a decade, but only now I think it has registered with the general public.

In fact, the increase in the number of juvenile sharks is a positive sign of a recovering shark population.

The catastrophic drop in shark populations across almost every species has sent shock waves through ocean ecosystems globally.

Increased age at maturity would make white sharks more sensitive to fishing pressure than previously thought, given the longer time needed to rebuild white shark populations.

Ben G. Saroy, Head of Cendrawasih Bay National Park Authority, agreed, «Cendrawasih Bay, home to the biggest whale shark population in Indonesia, requires comprehensive information to manage this endangered species.

Both wasteful and inhumane, shark finning contributes to the decimation of shark populations worldwide.

Citizen science may be a useful and cost - effective means to increase knowledge of shark populations on coral reefs, but scientists do not yet know enough about how data collected by untrained observers compares to results from traditional research methods.

«Great white shark population in good health along California coast.»

The International Union for Conservation of Nature assessed in its Red List of Threatened Species that 30 percent of shark populations around the world are Threatened or Near Threatened with extinction.

It aims to improve data collection and to decrease the decline in shark populations by reducing the pressures caused by overfishing, bycatch and shark finning.

Gabriel added, «Our study shows that with a little bit of training and a good sampling design, recreational divers collect very useful data that can be used to monitor shark populations over long periods of time and across large spatial areas.

You will also have the opportunity to survey and monitor coral reef habitats, populations of reef fish, commercially and ecologically important invertebrate species, and may even get the chance to monitor local shark populations.

«Anyone who has spent time on the ocean over the last 20 or 30 years will tell you that they used to see lots of sharks and that they don't anymore,» says Boris Worm, a marine conservation biologist and leading expert in shark populations at Dalhousie University in Canada.

Artic ice melting, New England cod all but gone, Mediteranean shark populations threatened, Pacific Salmon near collapse, coral reefs dying, one lonely leatherback returns to Padre Island 78 years late.

Related sites Boris Worm's site Science article on declining shark populations Science article on coral reef diversity hotspots

«The area still has healthy shark populations, and released reef or pelagic fish will simply be fast food for sharks,» he cautions.

Enjoy Osprey Reef's 40 metres visibility, plummeting walls to 1000 metres and resident shark population.

Two environmental groups have put out a fresh call to the United States to strengthen the Shark Finning Prohibition Act, a 2000 law aimed at blunting the illegal trade in shark fins that biologists say has devastated shark populations worldwide in the last decade or so.

via: Reuters Shark Fin Soup New Study Finds Half a Million Sharks Are Finned Every Year in Ecuador Bycatch Incidents and Fin Soup are Wiping Out Shark Populations Worldwide Yao Ming Shuns Shark Fin Soup

Bycatch Incidents and Fin Soup are Wiping Out Shark Populations Worldwide

Follow Jaymi on Twitter for more stories like this More on Coral Reefs Global Coral Reef Health Depends on Tougher US Laws, Experts Say How Boosting Shark Populations in Belize Can Save Coral Reefs Worldwide Malaysia Closes World - Famous Diving Sites to Save Coral Reefs Caribbean Coral Reef Conservation Ignores Evolution

You might not realize it, but this fear of sharks that stems from our misinformed notions of shark behaviors and habits has actually lead to a drastic drop in shark populations over the past few decades.

The hammerhead shark population was the hardest hit, declining 89 percent since 1986.

This map pinpoints how far shark populations around the globe have fallen.

Using the largest data set in the Northwest Atlantic, we show rapid large declines in large coastal and oceanic shark populations.

Unfortunately, this wreaks havoc among shark populations globally.

It may look rather ordinary but the hard coral reef just off Pacific Harbour's coastline (off the coast of Viti Levu) is home to many of the culturally significant shark population.

Aqua - Trek now operates the Ultimate Shark Encounter on nearby Lake Reef offering the best visibility, longer bottom time, a larger shark population and more regular tiger shark sightings!

«In some regions shark populations are declining by more than 90 %,» says Prodöhl.

In a study in the journal Endangered Species Research, shark fins on sale were shown to be from a specific region in which shark populations have collapsed, evidence that may help change fishing regulations.

So far, the information has been cited in more than 50 scientific publications; it has helped researchers analyze shark population declines and identify two new species of colorful fish — the Florida barred hamlet (Hypoplectrus floridae) and the contoy hamlet (H. ecosur).

Although accurate numbers are stubbornly hard to find, in many areas shark populations have dropped 90 percent or more, with hammerheads hit especially hard.

The dish is highly controversial because of the manner in which shark fins are harvested outside of the U.S. and the precarious status of many shark populations.

The earlier study also compared shark population numbers with other apex predators, such as polar bears and killer whales.

«That we found these sharks are doing OK, better than OK, is a real positive in light of the fact that other shark populations are not necessarily doing as well,» said Burgess, a co-founder of the Shark Specialist Group of the International Union for the Conservation of Nature.

«If we only studied them in the Delaware Bay, we would think the sand tiger shark population is always mixed, with male and female juveniles and adults together throughout the year.

The researchers went to Palmyra, a remote atoll in the central Pacific Ocean, where shark populations are healthy, fishing is not allowed and the majority of its near pristine underwater world is rarely dived.

Even in California, where monitoring is relatively good, estimates of the white shark population vary by an order of magnitude, from 500 to 5,000.

An international team of researchers studying globally declining shark populations report today that they used carbon isotopes as biochemical markers in shark muscle tissue...

Doyle's contributions to research are moving science forward with answers to questions about how sharks age, the location of feeding grounds and man's impact on the overall shark population's health.

But while the numbers of shark attacks have been climbing, the uptick has less to do with an increasing shark population, but rather attributable to human encroachment of their territory.

Assist the Research Team of the Gili Shark & Marine Conservation Project, who work on a variety of marine citizen science research projects with the aim of improving shark populations and awareness in the Gili Islands and Indonesia.

From June to September, the whale shark population takes advantage of the large amounts of plankton in the water.

Buddy up with dive size fish at the world famous Cod Hole, witness Osprey Reef's shark population including hammerheads and grey whalers and cruise the Ribbon Reefs.