SEO Test Tool

This tool allows you to analyze the source code of a page
and verify the optimization for the search engines.

URL:



Respuesta: HTTP/1.1 200 OK
Server: nginx
Date: Sun, 24 Mar 2019 19:51:29 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
Link: ; rel="https://api.w.org/"
Link: ; rel=shortlink
WPE-Backend: apache
X-WPE-Loopback-Upstream-Addr: 127.0.0.1:6783
X-Cacheable: SHORT
Vary: Accept-Encoding,Cookie
Cache-Control: max-age=600, must-revalidate
X-Cache: MISS
X-Pass-Why:
X-Cache-Group: normal
X-Type: default
URL: https://news.stanford.edu/2019/03/13/tunas-sharks-ships-sea/
Charset:
Title: Tunas, sharks and ships at sea | Stanford News
Description: Researchers combine maps of marine predator habitats with satellite tracks of fishing fleets to identify regions where they overlap to protect wildlife.
Keywords:
Geo.region:
Geo.position:
Geo.placename:
Texto: Tunas, sharks and ships at sea | Stanford News Skip to content News Menu Search form Search term Home Find Stories For Journalists Contact March 13, 2019 Stanford research predicts overlap of tunas, sharks and ships at sea Researchers combine maps of marine predator habitats with satellite tracks of fishing fleets to identify regions where they overlap – a step toward more effective wildlife management on the high seas. Facebook Twitter Email By Taylor Kubota Maps that show where sharks and tunas roam in the eastern Pacific Ocean, and where fishing vessels travel in this vast expanse, could help ocean managers to identify regions of the high seas where vulnerable species may be at risk. By combining maps of habitats of marine predators, like this salmon shark, with satellite tracking of fishing fleets, researchers are identifying regions where they overlap. (Image credit: Scot Anderson, TOPP) Researchers at Stanford University have created such a map by analyzing the habitats occupied by more than 800 sharks and tunas and 900 industrial fishing vessels. Focusing on international waters in the northeast Pacific, they found that vessels from Taiwan, China, Japan, the United States and Mexico accounted for over 90 percent of fishing in key habitat areas for seven shark and tuna species. “The high seas are the global commons of the oceans,” said Timothy White, a graduate student in biology at Stanford and lead author of the paper detailing this research, published March 13 in Science Advances . “Analyses like this open the door to conversations about whether we think that the current mode of operation in the high seas is most equitable, most effective and most desirable.” The researchers hope their findings can help the United Nations member states currently formulating the world’s first legally binding treaty to protect international waters, known as the high seas. “We may protect a species near the coastline of North America, but that same species may be exposed to a high level of international fishing in the open ocean. By increasing the transparency of where fish and ship fleets meet, we can identify hot spots where international protection may be required,” said Barbara Block , the Prothro Professor of Marine Sciences at Stanford University. Where fishing meets fish The team’s work builds on a 2018 study led by Global Fishing Watch , the Block Lab and other researchers, published in Science . In that study, researchers took four years of data from the Automatic Identification System (AIS) – which tracks vessel movements via satellite – and developed a machine learning algorithm that mapped the footprint of 70,000 individual fishing vessels across the globe, down to details about the fishing methods of each vessel. In the current paper, the researchers narrowed their focus to the activities of over 900 vessels from 12 countries in the northeast Pacific Ocean to better understand the degree of overlap among fishing fleets, sharks and tunas in those waters. A Pacific bluefin tuna is released with an archival tag from the eastern Pacific Ocean off the F/V Shogun in the California Current. (Image credit: Stanford University/B. Block) Meaningful solutions to overfishing of some shark and tuna populations have been hindered by two significant mysteries: where fishing is happening and where the fish are. In order to help solve these mysteries, the researchers combined ship positions with the ocean habitat preferences obtained from the decade-long tracking program called Tagging of Pacific Predators (TOPP). This program included Pacific bluefin tuna, yellowfin tuna, albacore tuna, white shark, shortfin mako shark, salmon shark and blue shark. With the exception of the salmon shark, all of these species are currently listed as Threatened or Near-Threatened on the IUCN (International Union for Conservation of Nature) Red List of Threatened Species, though some populations are sustainably fished in the northeast Pacific region. Over the 10 years of the TOPP program, 876 electronic tags were deployed on individual sharks and tunas. Hundreds of individual journeys – each spanning hundreds to thousands of kilometers – showed the researchers which areas of the ocean are preferred habitats for each species. By integrating the animal, ship and environmental data, the researchers predicted what ocean regions and commercial fishing fleets have the highest overlap. “The biggest challenge was in combining these very different datasets,” said White. “By adding the latest vessel tracking and machine learning techniques to the toolboxes of marine scientists, we were able to paint a clearer picture of how fish and fisheries interact, and this information can inform how our management strategies should reflect this.” High seas protection The United Nations’ high seas treaty discussions, which are ongoing through 2020, are very much on the minds of these researchers. As a window into human-animal interactions on the high seas, they believe their work could help guide which parts of the northeast Pacific Ocean deserve special consideration, what kinds of fishing activities should be addressed and what nations have a major role to play in protecting these waters. “These analyses have given us the chance to look more deeply into the dynamics of this ocean and see where managers and stakeholders should focus their attention,” said Francesco Ferretti , a research associate at Stanford’s Hopkins Marine Station and co-author of the paper. “We need to push harder to preserve this corner of the planet because these are some of the best ocean environments in the world.” Additional co-authors of the paper are David A. Kroodsma of Global Fishing Watch; Elliott L. Hazen and Steven J. Bograd of the National Oceanic and Atmospheric Administration and the University of California, Santa Cruz; Aaron B. Carlisle of the University of Delaware; and Kylie L. Scales of the National Oceanic and Atmospheric Administration and University of the Sunshine Coast. Block is also an affiliate of the Stanford Woods Institute for the Environment . This research was funded by the Bertarelli Foundation, the National Science Foundation and the California Current Integrated Ecosystem Assessment Program. To read all stories about Stanford science, subscribe to the biweekly Stanford Science Digest . Media Contacts Barbara Block, Hopkins Marine Station: (831) 655-6236, bblock@stanford.edu Francesco Ferretti, Hopkins Marine Station: (831) 233-4905, ferretti@stanford.edu Tim White, Hopkins Marine Station: (831) 655-6206, timwhite@stanford.edu Taylor Kubota, Stanford News Service: (650) 724-7707, tkubota@stanford.edu Science & Technology Biology Ecology & Environment Sustainability Facebook Twitter Email What to read next: Teaching & Students Vice provost’s message to students on death of Stanford undergraduate Susie Brubaker-Cole, vice provost for student affairs, sent the following message to all students on Saturday, March 23, sharing the news of the death overseas of Stanford undergraduate Mischa Nee. Science & Technology The effects of climate change on water shortages In Jordan, one of the most water-poor nations, predictions of future droughts depend on the scale of climate change. Without reducing greenhouse gases the future looks dry, but researchers offer some hope. University Affairs University and civic leaders celebrate the opening of Stanford Redwood City At Stanford Redwood City yesterday, President Marc Tessier-Lavigne, Provost Persis Drell, Redwood City Mayor Ian Bain and Redwood City Vice Mayor Diane Howard cut a ceremonial red ribbon to celebrate the opening of the new state-of-the-art campus. Stanford Report Receive daily Stanford news. More about Stanford Report For Journalists Press Releases Media Contacts Stanford Experts See Also Contact Stanford News Faculty / Staff Resources Weather 62° Stanford forecast Events Events calendar Stanford News is a publication of Stanford University Communications Stanford Home Maps & Directions Search Stanford Emergency Info Terms of Use Privacy Copyright Trademarks Non-Discrimination Accessibility © Stanford University , Stanford , California 94305 .


Enlaces
1 #content
2 www.stanford.edu/
3 /
4 news.stanford.edu/
5 news.stanford.edu/find-stories/
6 news.stanford.edu/for-journalists/
7 news.stanford.edu/contact/
8 #
9 #
10 mailto:?subject=An%20interesting%20article%20from%20Stanford%20News&body=I%20want%20to%20share%20this%20news%20story%20from%20Stanford%20University%20with%20you%3A%20https%3A%2F%2Fnews.stanford.edu%2F%3Fp%3D26689
11 news-media.stanford.edu/wp-content/uploads/2019/03/08211737/overlap_andersonTOPP.jpg
12 http://advances.sciencemag.org/content/5/3/eaau3761
13 profiles.stanford.edu/barbara-block
14 news.stanford.edu/2018/02/22/tracking-fishing-space/
15 https://globalfishingwatch.org/
16 https://www.stanfordblocklab.org/
17 news-media.stanford.edu/wp-content/uploads/2019/03/11122149/overlap_70-2.jpg
18 profiles.stanford.edu/francesco-ferretti
19 hopkinsmarinestation.stanford.edu/
20 woods.stanford.edu/
21 http://eepurl.com/dLmCng
22 mailto:bblock@stanford.edu
23 mailto:ferretti@stanford.edu
24 mailto:timwhite@stanford.edu
25 mailto:tkubota@stanford.edu
26 news.stanford.edu/section/science-technology/
27 news.stanford.edu/topic/biology/
28 news.stanford.edu/topic/ecology-environment/
29 news.stanford.edu/topic/sustainability/
30 #
31 #
32 mailto:?subject=An%20interesting%20article%20from%20Stanford%20News&body=I%20want%20to%20share%20this%20news%20story%20from%20Stanford%20University%20with%20you%3A%20https%3A%2F%2Fnews.stanford.edu%2F%3Fp%3D26689
33 news.stanford.edu/2019/03/23/vice-provosts-message-students-death-stanford-undergraduate/
34 news.stanford.edu/section/teaching-students/
35 news.stanford.edu/2019/03/23/vice-provosts-message-students-death-stanford-undergraduate/
36 news.stanford.edu/2019/03/22/effects-climate-change-water-shortages/
37 news.stanford.edu/section/science-technology/
38 news.stanford.edu/2019/03/22/effects-climate-change-water-shortages/
39 news.stanford.edu/2019/03/22/redwood-city-ribbon-cutting/
40 news.stanford.edu/section/university-affairs/
41 news.stanford.edu/2019/03/22/redwood-city-ribbon-cutting/
42 /stanford-report/
43 /press-releases/
44 /contact/media-contacts/
45 /experts/
46 /contact/
47 ucomm.stanford.edu/facstaff/
48 http://www.weather.com/weather/tenday/l/Stanford+CA+94305:4:US
49 events.stanford.edu/
50 ucomm.stanford.edu
51 www.stanford.edu
52 www.stanford.edu
53 visit.stanford.edu/plan/
54 www.stanford.edu/search/
55 emergency.stanford.edu
56 www.stanford.edu/site/terms/
57 www.stanford.edu/site/privacy/
58 uit.stanford.edu/security/copyright-infringement
59 adminguide.stanford.edu/chapter-1/subchapter-5/policy-1-5-4
60 exploredegrees.stanford.edu/nonacademicregulations/nondiscrimination/
61 www.stanford.edu/site/accessibility



Otras páginas de analisis SEO :   Woorank en español - Pages Inventory SEO tool - Seo book - Seo Site Checkup


Valid XHTML 1.0 Transitional ¡CSS Válido! 



argentino.com.ar
estamos en
Argentino.com.ar
publicar avisos