Navigation Links
Whale and dolphin death toll during Deepwater disaster may have been greatly underestimated
Date:3/29/2011

The Deepwater Horizon oil spill of 2010 devastated the Gulf of Mexico ecologically and economically. However, a new study published in Conservation Letters reveals that the true impact of the disaster on wildlife may be gravely underestimated. The study argues that fatality figures based on the number of recovered animal carcasses will not give a true death toll, which may be 50 times higher than believed.

"The Deepwater oil spill was the largest in US history, however, the recorded impact on wildlife was relatively low, leading to suggestions that the environmental damage of the disaster was actually modest," said lead author Dr Rob Williams from the University of British Columbia."This is because reports have implied that the number of carcasses recovered, 101, equals the number of animals killed by the spill."

The team focused their research on 14 species of cetacean, an order of mammals including whales and dolphins. While the number of recovered carcasses has been assumed to equal the number of deaths, the team argues that marine conditions and the fact that many deaths will have occurred far from shore mean recovered carcasses will only account for a small proportion of deaths.

To illustrate their point, the team multiplied recent species abundance estimates by the species mortality rate. An annual carcass recovery rate was then estimated by dividing the mean number of observed strandings each year by the estimate of annual mortality.

The team's analysis suggests that only 2% of cetacean carcasses were ever historically recovered after their deaths in this region, meaning that the true death toll from the Deepwater Horizon disaster could be 50 times higher than the number of deaths currently estimated.

"This figure illustrates that carcass counts are hugely mis-leading, if used to measure the disaster's death toll," said co-author Scott Kraus of the New England Aquarium "No study on carcass recovery from
'/>"/>

Contact: Ben Norman
Lifesciencenews@wiley.com
44-012-437-70375
Wiley-Blackwell
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Researchers discover new wintering grounds for humpback whales using sound
2. Oil giant plans new platform near feeding ground of critically endangered whale
3. Colossal fossil: Museums new whale skeleton represents decades of research
4. Blue whale-sized mouthfuls make foraging super efficient
5. Fleshing out the life histories of dead whales
6. Whale-inspired ocean turbine blades
7. Whale sharks do the math to avoid that sinking feeling
8. Researchers find first genetic evidence for loss of teeth in the common ancestor of baleen whales
9. Critically endangered whales flee Russian oil, gas boom
10. Whale sharks may produce many litters from 1 mating, paternity test shows
11. Blue whales align the pitch of their songs with extreme accuracy, study finds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/30/2015)... --Research and Markets ( http://www.researchandmarkets.com/research/lc9bnl/global_gesture ) has ... Market in Automotive Sector 2014-2018" report to their ... Recognition market in Automotive Sector to grow at a ... Gesture recognition is the ability of a device to ... Gesture recognition technology can be 2D-based or 3D-based. It ...
(Date:3/24/2015)... Fla. , March 24, 2015   ... management solutions, today announced that its U.are.U ® ... accessory retailer Goorin Bros . to achieve ... biometrics-based solution secures access to the POS terminal, ... increased risk of data breaches. ...
(Date:3/20/2015)... DUBLIN , Mar. 20, 2015 Research ... announced the addition of the "India Sensors ... their offering. The sensor market is ... through 2020 Consumer electronics, automotive, industrial ... for sensors in the country. In addition, adoption ...
Breaking Biology News(10 mins):Global Gesture Recognition Market in Automotive Sector Report 2015 - Growing Number of Partnerships 2Crossmatch Fingerprint Readers Help Retailer Prevent Data Breaches at Point-of-Sale 2India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 2India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 3
... researchers across the globe has uncovered nine new genes ... learning disabilities. The international team studied almost all X ... the largest screen of this type ever reported. ... of X chromosome genes, when knocked-out, have no apparent ...
... With climate change looming, the hunt for places that can ... Obvious "sinks" for the greenhouse gas include the oceans ... also play a role, and new research now suggests they ... study that drew on both historical and present-day datasets, Jeanine ...
... ago, Ponce de Leon combed the swamps of Florida seeking ... ASBMB Annual Meeting in New Orleans (held in conjunction with ... centering on the new molecular "fountain of youth," the genes ... may still be a long time away, the presentations at ...
Cached Biology News:The genetic X-factor 2The genetic X-factor 3Study reveals potential to amass more carbon in eastern North American forests 2Study reveals potential to amass more carbon in eastern North American forests 3ASBMB Annual Meeting to feature talks on the biochemistry of aging 2ASBMB Annual Meeting to feature talks on the biochemistry of aging 3
(Date:3/31/2015)... JUNCTION, N.J., March 31, 2015 CytoSorbents ... company using blood purification to treat critically-ill and ... an operational summary and reports financial results for ... 2014 CytoSorb® product revenues were a ... compared to 2013 CytoSorb® revenues of $0.8M Highlights ...
(Date:3/31/2015)... 31, 2015 Pittcon 2015, the 66th ... ended on March 12, in New Orleans with an ... as estimated by the New Orleans Convention and Visitor's ... conferees and exhibitor personnel. Those who attended Pittcon ... number. For the third year, the co-location of Food ...
(Date:3/31/2015)... and NEW YORK ... (NASDAQ: PTBI ), a biopharmaceutical company advancing ... announced today that its Korean marketing partner, Hanmi ... marketing approval in Korea from the country,s Ministry ... Korea Testing & Research Institute (KTR) for MuGard, ...
(Date:3/31/2015)... 31, 2015 Lighthouse Information Systems, ... operations in California, Oregon, Washington and clients across ... Merger and Acquisition (M&A) Integration Services offering, effective ... Client Services and M&A Integration Practice Leader at ... vast majority of M&A initiatives fail to achieve ...
Breaking Biology Technology:CytoSorbents Reports Record 2014 Revenue 2CytoSorbents Reports Record 2014 Revenue 3CytoSorbents Reports Record 2014 Revenue 4CytoSorbents Reports Record 2014 Revenue 5CytoSorbents Reports Record 2014 Revenue 6CytoSorbents Reports Record 2014 Revenue 7CytoSorbents Reports Record 2014 Revenue 8CytoSorbents Reports Record 2014 Revenue 9CytoSorbents Reports Record 2014 Revenue 10CytoSorbents Reports Record 2014 Revenue 11Pittcon 2015 Hits the Big Easy in a Big Way 2Pittcon 2015 Hits the Big Easy in a Big Way 3Pittcon 2015 Hits the Big Easy in a Big Way 4PlasmaTech Biopharmaceuticals' Partner Hanmi Pharmaceuticals Receives Marketing Approval For MuGard In Korea 2PlasmaTech Biopharmaceuticals' Partner Hanmi Pharmaceuticals Receives Marketing Approval For MuGard In Korea 3Lighthouse Information Systems, Inc., Announces Addition of M&A Integration Services 2
... Google has simplified local and national radio advertising ... and its Audio Ads network includes hundreds of radio stations ... who need to create a radio ad? , ,For one ... we've been partnering with both terrestrial and satellite radio stations ...
... that probably went unnoticed outside the academic world, the ... that show why the rest of us should be ... research. The numbers demonstrate that investment in research is ... creating jobs for the 21st century economy. , ,The ...
... New Mexico-based biotechnology company, has selected the Waisman ... vaccine. , ,Located at the University of ... designed to manufacture clinical-grade biological pharmaceutical products for Phase ... have clinical trials underway before the end of next ...
Cached Biology Technology:See how they run: Radio ads and Google 2See how they run: Radio ads and Google 3See how they run: Radio ads and Google 4Tapping hidden assets: Wisconsin researchers who can create jobs 2Tapping hidden assets: Wisconsin researchers who can create jobs 3Tapping hidden assets: Wisconsin researchers who can create jobs 4
Bio-Plex Manager software, version 3.0, 5 license netshare, is a five-user software package that provides access to data from the Bio-Plex suspension array system from a server. This version does not...
... 3 x 3 nmol (individual) with ... 3 siRNAs specifically targeted to your target gene ... reagent guarantees you get more than 75% knockdown ... conditions (100 nM siRNA for transfection and confirmation ...
... a cocktail of 3 siRNAs specifically targeted ... most popular product. The siTrio reagent guarantees ... your target gene when used under standard ... confirmation of optimal transfection with one of ...
... Vitamin D kit is an enzymeimmunoassay ... 25-hydroxyvitamin D (25-OH D) and other ... plasma. Our patented DIRECT assay technology ... and centrifugation and therefore facilitates automation ...
Biology Products: