While a new study warns that up to 100 million sharks are killed annually, there are signs out of China that demand for shark fin may be on the decline.
A study published last week in the journal Marine Policy estimated shark deaths at 100 million in 2000 and 97 million in 2010, suggesting a slight drop in shark killing. Meanwhile reports out of China in recent months suggest an accelerating decline in shark fin consumption. China is the top market for shark fin, which is consumed as a status symbol, typically at wedding ceremonies and business dinners.
Figures released by Chinese officials late last year showed that shark fin imports fell from 10,292 metric tons in 2011 to 3,087 through the fist 11 months of 2012. Meanwhile, last summer the Chinese government announced it will stop serving shark fin at state dinners, an important symbolic move. The Chinese media has also recently grappled with the issue, noting that shark fins are loaded with mercury and have no nutritional value.
“Wine is replacing shark fin. It conveys status as well or better than shark fin,” Peter Knights, the head of WildAid, which has lead a campaign against shark fin soup, told mongabay.com. “Things are really coming to a head now and it is becoming more mainstream to address the demand side of the wildlife trade. The shark campaign is working, but whether we can apply it to rhinos and elephants is the next challenge.”
Various media outlets have reported that the price of shark fins in plummeting, down by about 50-70 percent in China. A drop in price means fishermen are less likely to target sharks. Such a reduction, if confirmed, would represent millions of sharks being saved from the hook.
Sharks have also seen good news on the conservation side in recent years. Numerous countries have declared some or all of their waters as “shark sanctuaries.” In addition, shark fin soup has faced legislative bans in a number of U.S. states.
Still biologists fear for many species of shark, especially given slow maturation, long lifespan and few offspring. The researchers estimated that fisheries are taking 6.4 to 7.9 percent of the world’s total shark population from the ocean every year. However, sharks average population growth rate is about 4.9 percent. If sharks are allowed to recover, it will be a slow and long process much like is has been for whales since industrial whaling was banned in the mid-1980s.
In the meantime, the decline in sharks is likely having impacts across the world’s oceans as top predators, both on land and in water, play oversized roles on ecological stability.
“This is a big concern because the loss of sharks can affect the wider ecosystem,” said co-author of the Marine Policy paper Mike Heithaus, with Florida International University. “In working with tiger sharks, we’ve seen that if we don’t have enough of these predators around, it causes cascading changes in the ecosystem, that trickle all the way down to marine plants.”
At the current CITES meeting in Bangkok, Thailand, nations are proposing to list several shark species for protection including the scalloped hammerhead shark (Sphyrna lewini), great hammerhead shark (Sphyrna mokarran), smooth hammerhead shark (Sphyrna zygaena), Oceanic whitetip shark (Carcharhinus longimanus), and porbeagle shark (Lamna nasus). CITES participants will also vote on protecting manta rays, which is also overfished for its gill plates that are used in Chinese Traditional Medicine.
CITATION: Boris Worm, Brendal Davis, Lisa Kettemer, Christine A. Ward-Paige, Demian Chapman, Michael R. Heithaus, Steven T. Kessel, Samuel H. Gruber. Global catches, exploitation rates, and rebuilding options for sharks. Marine Policy. 2013.
Read more at http://news.mongabay.com/2013/0304-butler-hance-sharks.html
Share this post with your friends
You may also like:
Top-Viewed Posts Last 30 Days
- POLL: Should there be a worldwide ban on fur farming? – [3494 Views]
- POLL: Should foxes be culled to protect domestic pets? – [2017 Views]
- POLL: Should Nevada’s wild horses be protected from roundups and slaughter? – [1806 Views]
- POLL: Should the export of young elephants to Chinese zoos be banned? – [1497 Views]
- POLL: Should there be a total ban on trade in rhino horn? – [1266 Views]
- POLL: Should trail (fox) hunting on National Trust land be stopped? – [1173 Views]
- POLL: Should there be a worldwide ban on the shark fin trade? – [1014 Views]
- POLL: Should the Grand Canyon Bison be culled? – [940 Views]
- Radioactive Boar Wreak Havoc on Swedish Landscape – [876 Views]
- POLL: Would you support the reintroduction of the wolf in the UK? – [832 Views]
Top-Viewed Posts Last 12 Months
- POLL: Should hunting with hounds be banned? – [7632 Views]
- Gray Squirrels versus Red Squirrels – The Facts [7121 Views]
- POLL: Should the trophy hunting of bears and wolves be banned? – [3696 Views]
- POLL: Should the slaughter of badgers in the UK be finally stopped? – [3038 Views]
- POLL: Should the cruel sport of bullfighting be banned? [2873 Views]
- POLL: Should Canada ban the hunting of seals? [2667 Views]
- POLL: Should the Tories be allowed to bring back fox hunting? [2578 Views]
- POLL: Should wild elephants be sold to Chinese zoos? [2322 Views]
- POLL: Should Japan be sanctioned for slaughtering Minke whales? [2289 Views]
- POLL: Should all tiger farms in China be closed down? [2081 Views]