Navigation Links
Google Earth reveals untold fish catches
Date:11/26/2013

Large fish traps in the Persian Gulf could be catching up to six times more fish than what's being officially reported, according to the first investigation of fish catches from space conducted by University of British Columbia scientists.

Using satellite imagery from Google Earth, UBC researchers estimated that there were 1,900 fishing weirs along the coast of the Persian Gulf during 2005 and that they caught approximately 31,000 tonnes of fish that year. The official number reported by the seven countries in the region to the United Nation's Food and Agriculture Organization was 5,260 tonnes. The study was published today in the ICES Journal of Marine Science.

Fishing weirs are semi-permanent traps that take advantage of tidal differences to catch a wide variety of marine species. Used in Southeast Asia, Africa and parts of North America, some weirs can be more than 100 metres long.

"This ancient fishing technique has been around for thousands of years," says Dalal Al-Abdulrazzak, a PhD student with the UBC Fisheries Centre's Sea Around Us Project and the study's lead author. "But we haven't been able to truly grasp their impact on our marine resources until now, with the help of modern technology."

The study shows the potential for using remote-sensing approaches, such as satellite imagery, to validate catch statistics and fisheries operations in general.

"Time and again we've seen that global fisheries catch data don't add up," says Daniel Pauly, principal investigator with the Sea Around Us Project and the study's co-author. "Because countries don't provide reliable information on their fisheries' catches, we need to expand our thinking and look at other sources of information and new technologies to tell us about what's happening in our oceans."


'/>"/>

Contact: Lisa Boonzaier
l.boonzaier@fisheries.ubc.ca
604-367-4988
University of British Columbia
Source:Eurekalert

Page: 1

Related biology news :

1. Google, Intel founders support undersea research by UMass Amherst microbiologist
2. New lung cancer study takes page from Googles playbook
3. International consortium builds Google Map of human metabolism
4. Scientists and Google to keep an eye on environment
5. Even if emissions stop, carbon dioxide could warm Earth for centuries
6. Oxygen, phosphorous and early life on Earth
7. EARTH Magazine: The lizard king rises
8. Frontiers launches 2 new open-access journals: Frontiers in Earth Science and Frontiers in Environmental Science
9. EARTH Magazine: CSI La Brea -- Tiny traces reveal big secrets of the tar pits
10. Watching Earths winds, on a shoestring
11. Rare earths in bacteria
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/19/2017)... April 19, 2017 The global ... landscape is marked by the presence of several large ... held by five major players - 3M Cogent, NEC ... accounted for nearly 61% of the global military biometric ... in the global military biometrics market boast global presence, ...
(Date:4/17/2017)... MELBOURNE, Florida , April 17, 2017 ... security technology company, announces the filing of its 2016 Annual Report ... Securities and Exchange Commission. ... Report on Form 10-K is available in the Investor Relations section ... well as on the SEC,s website at http://www.sec.gov . ...
(Date:4/13/2017)... PUNE, India , April 13, 2017 According ... Identity Proofing, Identity Authentication, Identity Analytics, Identity Administration, and Authorization), Service, Authentication ... by MarketsandMarkets™, the IAM Market is expected to grow from USD 14.30 ... Annual Growth Rate (CAGR) of 17.3%. ... ...
Breaking Biology News(10 mins):
(Date:4/19/2017)... ... April 18, 2017 , ... A number of new instruments ... which is part of the Protein and Cell Analysis Education Webinar Series , ... this technology fits in current and future applications. , Many flow cytometers have ...
(Date:4/19/2017)... ... April 18, 2017 , ... ... Labs . The move comes after the company changed focus to making analytical ... new brand and our new technology,” says CEO Robert Hart. Founders Bernardo Cordovez, ...
(Date:4/19/2017)... MA (PRWEB) , ... April 19, 2017 , ... ... a $1.5M Series A-1 financing round. This event adds to several other early ... of its’ Executive and Scientific Teams. , ThermaGenix will use proceeds ...
(Date:4/19/2017)... (PRWEB) , ... April 19, 2017 , ... ... Event, which makes educational webinars accessible to novices as well as experienced ... preanalytical variables of commonly performed coagulation screening tests. , Hemostasis testing quality ...
Breaking Biology Technology: