HOME >> BIOLOGY >> NEWS
Reduced fish stocks linked to increased bushmeat trade, wildlife declines in W. Africa

Declining fish stocks are fuelling a multibillion-dollar bushmeat trade in West Africa. It's a trend that is threatening the survival of dozens of wildlife species, and EU fishing agreements with African nations may be part of the problem, says a group of international researchers that includes UBC forestry sciences professor Peter Arcese, UBC zoology professor Anthony Sinclair and UBC graduate Justin Brashares (now an assistant professor at UC, Berkeley).

Using 30 years worth of census data collected monthly by rangers in six nature reserves in Ghana, the researchers have found a direct link between fish supply and the demand for bushmeat in Ghanaian villages. Bushmeat is any wild species taken from public land and sold for consumption.

The group's findings will be published in November 12 issue of the journal Science.

More than half of Ghana's 20 million people reside within 100 km of the coast, where fish are the primary source of dietary protein and income.

Looking at data for the years 1970 to 1998, researchers found that in 14 local food markets, when fish supply was limited or its price increased, residents substituted bushmeat as an alternate source of affordable protein and the number of bushmeat hunters observed by rangers in parks increased. Overall, the wildlife harvest has contributed to a 76 per cent decline in the biomass of 41 species of mammals in parks since 1970.

The bushmeat trade in Ghana is estimated conservatively at 400,000 tons per year. Species affected include several species of antelope, carnivores and small primates.

During the same period, trawl surveys conducted in the Gulf of Guinea, off Ghana's coast, since 1970 along with other regional stock assessments, estimate that fish biomass in nearshore and offshore waters has declined by at least 50 per cent. In the same period, there has been a threefold increase in human populations in the region.

"We've suspected this
'"/>

Contact: Michelle Cook
michelle.cook@ubc.ca
1-604-822-2048
University of British Columbia
11-Nov-2004


Page: 1 2 3

Related biology news :

1. Reduced frontal-lobe activity and impulsivity may be linked to alcoholism risk
2. Reduced body temperature extends lifespan in study from the Scripps Research Institute
3. Reduced calorie and carbohydrate diet slows progression of Alzheimers disease in mouse model
4. Innovative tagging technique may help researchers better protect fish stocks
5. High-value chemicals produced from ethanol feedstocks could boost biorefinery economics
6. Salmon go veggie to save wild fish stocks
7. Marine ecologists to help rebuild decreasing fish stocks
8. Darwinian debt may explain why fish stocks dont recover
9. Big, old fish key to restoring groundfish stocks
10. Studies in Royal Society journals include stress in birds and depletion of medieval fish stocks
11. Protein chatter linked to cancer activation

Post Your Comments:
(Date:3/20/2015)... DUBLIN , Mar. 19, 2015 Research and Markets ... the "Iris Biometrics - Global Strategic Business Report" ... worldwide markets for Iris Biometrics in US$ Thousands. The report ... , Japan , Europe ... East , and Latin America . ...
(Date:3/17/2015)... 2015 Emotient, the leader in facial ... general availability of Emotient Analytics , the ... of facial expressions. The system analyzes videos of ... and services. It delivers audience response metrics - ... as derived from facial evidence of emotional states. ...
(Date:3/12/2015)... , March 12, 2015 The mascots of ... Children,s Hospital, part of Wake Forest Baptist Medical Center. ... for the 2015 ACC Men,s Basketball Tournament. Young patients ... them and getting their autographs. Brenner Children,s ... It is the only children,s hospital in northwest ...
Breaking Biology News(10 mins):Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 2Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 3Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 4Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 5New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 2New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 4
(Date:3/27/2015)... 2015   SurePure, Inc . (OTCQB: SURP), ... that the Company has completed the verification process ... SurePure ("SURP") securities on OTCQB, an electronic quote ... development stage companies. On March 26, ... requirements designed to improve marketplace integrity and enhance ...
(Date:3/27/2015)... New York (PRWEB) March 27, 2015 ... the 2015 application period for 43North - the world’s ... prizes, including a grand prize of $1 million, six ... entrepreneurs from around the world to compete for prizes ... funded enterprises in the Western New York region. ...
(Date:3/26/2015)... -- BioNano Genomics, Inc., the leader in genome mapping, announced ... commercial officer. Salyer has more than 20 years of ... sciences. At BioNano, Salyer will oversee the commercialization of ... assemble a comprehensive view of complex genomes to help ... located in the United States , ...
(Date:3/26/2015)... 2015 "In America," the popular news television ... that is hosted by legendary film actor James Earl Jones, ... in an upcoming segment. , Botany is commonly described ... is actually quite a bit more complicated than that. Scientists ... of living organisms, from the smallest bacteria known to man ...
Breaking Biology Technology:SurePure Completes Verification and Approved for Trading on the OTCQB Marketplace 2Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 2Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 3Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 4Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 5BioNano Genomics Appoints Terry Salyer as Chief Commercial Officer 2BioNano Genomics Appoints Terry Salyer as Chief Commercial Officer 3
Cached News: