Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 


New Study: Alarming Declines in Pacific Shark Population

New Study Reveals Alarming Declines in Pacific Shark Populations

Research published today in the journal Conservation Biology presents the most comprehensive assessment of the status of Pacific shark populations to date. The paper, authored by Dr. Shelley Clarke and a team from the Secretariat of the Pacific Community in New Caledonia, shows significant declines in catch rates for blue, mako, and oceanic whitetip sharks, as well as declining average sizes of oceanic whitetip and silky sharks, indicating heavy fishing. These results, along with evidence of shark targeting reported by Dr. Clarke and other scientists in the western North Pacific, heighten concerns for the sustainability of Pacific shark populations.

"Our research reveals alarming declines of 17% per year in populations of the oceanic whitetip shark, a species highly valued for its fins," explained Dr. Clarke. "Also of serious concern are declines of 5% per year for North Pacific blue sharks, considering that this species is known as one of the most productive and abundant pelagic sharks. The data we analyzed show consistent trends for each species and area, even though they were collected from different fisheries."

The paper also suggests that bans on shark finning (slicing off a shark's fins and discarding the carcass at sea), as currently implemented, are doing little to reduce the number of sharks killed in international longline fisheries, likely due to a combination of poor enforcement and increasing markets for shark meat. Finning bans for international Pacific waters include a complicated fin-to-carcass weight ratio for enforcement and depend on follow-up domestic actions which to date have been lacking. The oceanic whitetip is the only shark species subject to international Pacific catch limits.

"These findings underscore conservationists' messages that most finning bans are not properly enforced, and alone are insufficient to reverse shark population declines," said Sonja Fordham, President of Shark Advocates International. "Prohibitions on at-sea removal of fins not only bolster finning ban enforcement, but also facilitate collection of species-specific fisheries data that are key to refining population assessments and informing the establishment of urgently needed shark catch limits." Shelley Clarke was the Western and Central Pacific Fisheries Commission's shark scientist in 2010-2011 and has authored groundbreaking papers on the shark fin trade including the estimate of 26-73 million sharks traded through the global market annually.

Shark Advocates International is a project of The Ocean Foundation advancing sound policies for sharks.

SOURCE: Shark Advocates International

ENDS

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Company Results: Air NZ Rides The Tourism Boom With Record Full-Year Earnings

Air New Zealand has ridden the tourism boom and staved off increased competition to deliver the best full-year earnings in its 76-year history. More>>

ALSO:

New PGP: Sheep Milk Industry Gets $12.6M Crown Funding

The Sheep - Horizon Three programme aims to develop "a market driven, end-to-end value chain generating annual revenues of between $200 million and $700 million by 2030," according to a joint statement. More>>

ALSO:

Half Full: Fonterra Raises Forecast Milk Price

Fonterra Co-operative Group Limited today increased its 2016/17 forecast Farmgate Milk Price by 50 cents to $4.75 per kgMS. When combined with the forecast earnings per share range for the 2017 financial year of 50 to 60 cents, the total payout available to farmers in the current season is forecast to be $5.25 to $5.35 before retentions. More>>

ALSO:

Keep Digging: Seabed Ironsands Miner TransTasman Tries Again

The first company to attempt to gain a resource consent to mine ironsands from the ocean floor in New Zealand's Exclusive Economic Zone has lodged a new application containing fresh scientific and other evidence it hopes will persuade regulators after their initial application was turned down in 2014. More>>

Wool Pulled: Duvets Sold As ‘Premium Alpaca’ Mostly Sheep’s Wool

Rotorua business Budge Collection Limited (Budge) and sole director, Sun Dong Kim, were convicted and fined a total of $71,250 in Auckland District Court after each pleading guilty to four charges of misrepresenting how much alpaca fibre was in their duvets. More>>

Reserve Bank: Labour Calls For Monetary Policy To Expand Goals

Labour's comments follow a speech today by RBNZ governor Graeme Wheeler in which Wheeler sought to answer critics who variously say he should stop lowering interest rates, lower them faster, or that inflation-targeting should no longer be the primary goal of the central bank's activities. More>>

ALSO:

BSA Extension And Sunday Morning Ads: Digital Convergence Bill Captures Online Content

Broadcasting Minister Amy Adams has today announced the Government’s plans to update the Broadcasting Act to better reflect today’s converged market... The Government considered four areas as part of its review into content regulation: classification requirements, advertising restrictions, election programming and contestable funding. More>>

ALSO:

Get More From Scoop

 
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news