Navigation Links
Photo-monitoring whale sharks
Date:12/25/2007

Up to 20 meters long and weighing as much as 20 tons, its enormous size gives the whale shark (Rhincodon typus) its name. Known as the gentle giant for its non-predatory behavior, this fish, with its broad, flattened head and minute teeth, eats tiny zooplankton, sieving them through a fine mesh of gill-rakers. Listed as a rare species, relatively little is known about whale sharks, which live in tropical and warm seas, including the western Atlantic and southern Pacific. However, a new study combines computer-assisted photographic identification with ecotourism to study the rare species and suggests whale shark populations in Ningaloo, Western Australia are healthy. The study appears in the Ecological Society of Americas January issue of Ecological Applications.

West Australian marine scientist Brad Norman (ECOCEAN/Murdoch University) began the study in 1995. Photographs were taken while swimming alongside each whale shark and photographing or video-taping the white lines and spots along the flanks of the animal. Norman teamed up with U.S. computer programmer Jason Holmberg (ECOCEAN, Portland, Oregon) and astronomer Zaven Arzoumanian (USRA/NASA, Greenbelt, Maryland) who adapted software originally used with the Hubble space telescope. The pattern-recognition software developed by Holmberg and Arzoumanian allowed the group to positively identify individual whale sharks. Like a human fingerprint, the speckles and stripes pattern on the skins of whale sharks are believed to be unique to each individual.

Ningaloo Reef, in Western Australia, is one of the best locations to find whale sharks, especially between April and June. The authors found that more whale sharks are returning to the northern area of Ningaloo Marine Park from season to season, suggesting the population is growing. In addition, they found that about two-thirds of the sharks were repeat visitors while one-third were sighted only once during the study period.


'/>"/>

Contact: Nadine Lymn
nadine@esa.org
202-833-8773
Ecological Society of America
Source:Eurekalert

Page: 1 2

Related biology news :

1. Migrating squid drove evolution of sonar in whales and dolphins, researchers argue
2. Gray whales a fraction of historic levels, genetic research says
3. Ancient whale fall from Californias Año Nuevo Island one of youngest, most complete known
4. Ancient whale fall from Californias Ao Nuevo Island one of youngest, most complete known
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... Our genetic information is stored in DNA, tiny strands ... of our bodies. To express this genetic data, our ... the instructions into proteins that perform tasks in our ... new type of RNA molecule. Unlike all other known ... RNA. Although circRNA molecules are abundant, little has been ...
(Date:9/18/2014)... will be celebrated tonight at the third annual Golden ... health of premature infants and in paving the way ... work was supported by the National Science Foundation, the ... Commission, will be honored at a ceremony at the ... of Members of Congress will be on hand to ...
(Date:9/18/2014)... world, are the ideal animal in which to study ... the ocean into tens of thousands of freshwater streams ... skeleton to adapt to the new environment. , Breeding ... have turned up one of the genes that controls ... that gene,s regulation in a freshwater population is associated ...
Breaking Biology News(10 mins):Scientists find how mysterious 'circular RNA' is formed, claim muscular dystrophy link 23rd annual Golden Goose award ceremony honors 8 researchers; Unusual work had big results 2Counting fish teeth reveals regulatory DNA changes behind rapid evolution, adaptation 2Counting fish teeth reveals regulatory DNA changes behind rapid evolution, adaptation 3
... The University of Nottingham have developed a unique technology that ... body,s chemical messenger system for the very first time, live ... helped to attract 1.3 million from the MRC (Medical Research ... insight into the tiny world of activity taking place within ...
... 2008 Researchers at UT Southwestern Medical Center have ... nerve cells for either exercise or antidepressants to reduce ... antidepressants and exercise use the same biochemical pathway to ... some unknown mechanisms of antidepressants and provide a new ...
... the University of York have discovered a new role for ... improved treatments for chronic infections and cancer. Natural Killer ... recognised over 30 years ago as being able to kill ... role for NK cells in activating other white blood cells ...
Cached Biology News:Life under the laser 2Antidepressants need new nerve cells to be effective, UT Southwestern researchers find 2New role for natural killers! 2
(Date:9/18/2014)... DALLAS , Sept. 18, 2014 /PRNewswire-iReach/ -- ... and China Acetic Acid Industry" and "2014 Deep ... Industry" reports to its research database. ... 2014 Deep Research Report on Global and China ... research report on China ...
(Date:9/18/2014)... (PRWEB) September 18, 2014 Texas ... John Sharp, Texas A&M Health Science Center CEO ... Department of Health and Human Services (HHS), State ... a national pandemic influenza vaccine manufacturing facility in ... an anchor for the Texas A&M Biocorridor – ...
(Date:9/18/2014)... Sept. 18, 2014 Research and Markets ... Human Albumin Industry Report 2014" report to their ... Report 2014 is a professional and in-depth study on ... The report provides a basic overview of ... structure. The human albumin market analysis is provided for ...
(Date:9/18/2014)... Pharma, Inc. (Nasdaq: MEIP ), an oncology company ... announced today that Daniel P. Gold , Ph.D., President ... in the Biotech Industry conference on Friday, September 26, ... Hotel & Conference Center in New York ... at www.meipharma.com . A replay will be available approximately ...
Breaking Biology Technology:Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 2Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 3Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 4Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 2Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 3Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 4Global Human Albumin Industry Report 2014 2Global Human Albumin Industry Report 2014 3MEI Pharma To Present At BioCentury's NewsMakers Conference 2MEI Pharma To Present At BioCentury's NewsMakers Conference 3
... Inc.,(Nasdaq: MKSI ), a global provider of ... announced that it will release,third quarter 2008 financial ... 2008. A conference call with management will be ... The call will be broadcast live and,available for ...
... Lieberman, of Harvard Medical School, is a prominent expert ... Courvalin, of the Institut Pasteur, Paris, France, ... Mass., Oct. 6 Cequent Pharmaceuticals, a,pioneer in the ... and treat human disease, announced that two of the,leading ...
... event, NEW HAVEN, Conn., Oct. 6 The ... research community to New Haven, Conn.,March 23 - 24, ... brought 700 scientists,business leaders and students to Hartford last ... cell research and their potential,medical applications. Included in the ...
Cached Biology Technology:Two Luminaries Join Cequent Scientific Advisory Board: Judy Lieberman, M.D. Ph.D., and Patrice Courvalin, M.D. 2Two Luminaries Join Cequent Scientific Advisory Board: Judy Lieberman, M.D. Ph.D., and Patrice Courvalin, M.D. 3Connecticut's Universities Team Up to Host 2009 Stem Cell Symposium 2
... is a new product number, ... product number. If showing no ... the old Sigma-Aldrich number (Z71,518-2) ... assistance. Material: cap polystyrene ...
... This CLS number is a ... match Cornings product number. If showing ... the old Sigma-Aldrich number (Z71,517-4) or ... Material: cap polystyrene (expanded surface, easy ...
Formula variant: With macro- and micronutrients. Physical Form: powder Suitab tst: plant cell culture tested...
BD Falcon 850 cm Smooth-surface TufRol Roller Bottle, tissue-culture treated polystyrene, blow-molded one-piece design, with easy on/off non-vented cap. (2/sp, 20/ca) Packaging: 2 / pack, 20 /...
Biology Products: