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:10/15/2014)... have linked increased resistance to bacterial pneumonia in female ... hormone estrogen. , Females are naturally more resistant to ... scientists has shown that increased resistance to bacterial pneumonia ... oxide synthase 3 (NOS3). They also show that this ... female sex hormone estrogen. , The team, lead by ...
(Date:10/14/2014)... shows SIRT6—a protein known to inhibit the growth ... skin cancers by turning on an enzyme that increases ... Previously considered protective, SIRT6 is part of a family ... stability and prevent some of the genetic flaws associated ... lead to cancer. This study, in the journal,s October ...
(Date:10/14/2014)... oil supplements, rich in omega-3 fatty acids, do not reduce ... the heart can beat as fast as 150 beats a ... Montreal Heart Institute were published in the Journal of ... For the trial, 337 patients with atrial fibrillation not receiving ... fish oil a day or to placebo for up to ...
Breaking Biology News(10 mins):Two-faced gene: SIRT6 prevents some cancers but promotes sun-induced skin cancer 2
(Date:10/20/2014)... Inc. (TSXV: BRM) ("Biorem" or "the Company") today announced four new ... and provides a good start to Q4.  The orders are for ... and one in the Middle East . ... Peter Bruijns , President & CEO. "Total bidding activity and ... have been for any complete year since the company has tracked ...
(Date:10/20/2014)... 20, 2014 OncLive® ... Cancer Center at Thomas Jefferson University has joined ... the Strategic Alliance Partnership program, the Sidney Kimmel ... to raise awareness of the Center’s cutting-edge research ... projects. Clinicians and other health care professionals from ...
(Date:10/19/2014)... OCTOBER 20-22, 2014: The 9th Annual ... take place at the Congress Center Basel, ... now available at http://www.abim.ch . ... from all over the globe will exchange ... products and developments on the world market. ...
(Date:10/19/2014)... Asia-Pacific Speech Analytics market report defines and segments the ... of revenue. This market is estimated to grow from ... at a Compound Annual Growth Rate (CAGR) of 23.9% ... of the Asia-Pacific Speech Analytics market report to get ... provides a glimpse of the segmentation in the market, ...
Breaking Biology Technology:Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 2The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 4
Cached News: