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

 


Fisheries Conservation Risk Top In Canada, Mexico, Peru, NZ

Fisheries Conservation Risk Highest In Canada, Mexico, Peru and New Zealand: UBC at AAAS

February 20, 2012

UBC researchers have identified conservation “hot spots” around the world where the temptation to profit from overfishing outweighs the appetite for conservation.

Combining economic outlook and fisheries population growth rates for all countries currently reported to fish in the ocean, UBC fisheries researchers William Cheung and Rashid Sumaila developed a conservation risk index to reveal the economic-conservation trade-offs of fishing.

Areas with the highest risk index – those most biologically and economically vulnerable to overfishing – include the northeastern coast of Canada, the Pacific coast of Mexico, the Peruvian coast, the south Pacific (offshore of New Zealand in particular), the southern and southeastern coast of Africa, and the Antarctic region.

“This index is a guide for determining the appropriate conservation and fisheries management policy for each region,” says Cheung, an assistant professor in UBC’s Fisheries Centre, who presented his research during a press briefing at the Annual Meeting of the American Association for the Advancement of Science (AAAS) in Vancouver, Canada.

“The most vulnerable areas may need to be protected with special management approaches – such as marine protected areas, while others may benefit from economic incentive instruments to better manage the ecosystems – such as territorial use rights in fisheries, or TURFs,” says Sumaila, professor and director of the UBC Fisheries Centre.

The index can also help conservation managers use scarce resources in a targeted, efficient and effective way to ensure the conservation of sustainable use of seafood and marine ecosystems, Sumaila adds.

“Fishing has a major impact on marine biodiversity, causing the depletion of many species,” says Cheung, who grew up in Hong Kong and focused his earlier research on fisheries in the South China Sea – one of the most over-exploited areas in the world’s oceans. “I witnessed how overfishing can damage marine ecosystems and the goods and services they provide – but in order to solve the problem, we need an understanding of both biology and economics. Biology determines whether a stock is more vulnerable to fishing, while economics determines how strong the incentive is to overfish the stock now.“

The conservation risk index is based on the discount rates of fishers and the intrinsic population growth rates of the fish being targeted. The discount rate is a measure of how much a dollar of fish to be received in the future is worth today – similar to the long-term lending interest rate of central banks. The intrinsic population growth rate is the difference between the birth and death rate of a fish stock.

Cheung and Sumaila used published discount rates data for all countries that are reported to fish in the ocean, and intrinsic growth rate data for major exploited fish species to calculate the conservation risk index for each half degree square area of the world’s oceans (2,500 square-kilometres, roughly the size of Metro Vancouver or three times the size of New York City). The higher the conservation risk index, the more vulnerable the area is.

ENDS


© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Interest Rates: Wheeler Hikes OCR To 3% On Inflationary Pressures, Eyes Kiwi

Reserve Bank governor Graeme Wheeler lifted the official cash rate for the second time in as many months, saying non-tradable inflationary pressures were "becoming apparent" in an economy that’s picking up pace and he's watching the impact of a strong kiwi dollar on import prices. More>>

ALSO:

Scoop Business: Equity Crowd Funding Carries Risks, High Failure Rate

Equity crowd funding, which became legal in New Zealand this month, comes with a high risk of failure based on figures showing existing forays into social capital have a success rate of less than 50 percent, one new entrant says. More>>

ALSO:

Scoop Business: NZ Migration Rises To 11-Year High In March

The country gained a seasonally adjusted 3,800 net new migrants in March, the most since February 2003, said Statistics New Zealand. A net 400 people left for Australia in March, down from 600 in February, according to seasonally adjusted figures. More>>

ALSO:

Hugh Pavletich: New Zealand’s Bubble Economy Is Vulnerable

The recent Forbes e-edition article by Jesse Colombo assesses the New Zealand economy “ 12 Reasons Why New Zealand's Economic Bubble Will End In Disaster ”, seems to have created quite a stir, creating extensive media coverage in New Zealand. More>>

ALSO:

Thursday Market Close: Genesis Debut Sparks Energy Rally

New Zealand stock rose after shares in the partially privatised Genesis Energy soared as much as 18 percent in its debut listing on the NZX, buoying other listed energy companies in the process. Meridian Energy, MightyRiverPower, Contact Energy and TrustPower paced gains. More>>

ALSO:

Power Outages, Roads Close: Easter Storm Moving Down Country

The NZ Transport Agency says storm conditions at the start of the Easter break are making driving hazardous in Auckland and Northland and it advises people extreme care is needed on the regions’ state highways and roads... More>>

ALSO:

Get More From Scoop

 
 
Computer Power Plus
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news