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:7/9/2014)... but often can be defeated with antibiotics and then ... Now, scientists have built a new weapon against such pathogens ... journal ACS Applied Materials & Interfaces , their study ... them than medicine alone. , David Leong, Jianping Xie and ... undetectable in the human body or in places that antibiotics ...
(Date:7/9/2014)... a sparrow-sized fossil from China challenges the commonly held ... gained the ability to fly. The birdlike fossil is ... rather the remains of a tiny tree-climbing animal that ... Dinosaur Museum in Blanding, Utah, and Alan Feduccia of ... Springer,s Journal of Ornithology . , The fossil ...
(Date:7/9/2014)... one of the amphibians with the highest distribution in ... of water where it comes into contact with the ... carried out by the Spaniard Germn Orizaola from the ... these frogs have developed a defensive response to the ... bodies if they co-exist with the crayfish. , Numerous ...
Breaking Biology News(10 mins):Researchers declassify dinosaurs as being the great-great-grandparents of birds 2Frogs have developed rapid defences against the red swamp crayfish 2Frogs have developed rapid defences against the red swamp crayfish 3
... machines may not always use hot enough water to ... Acinetobacter, a Gram-negative bacteria, from hospital uniforms, according to ... Infection Control and Hospital Epidemiology , the journal of ... The study, conducted by researchers from University College in ...
... an unprecedented depletion of the Earth,s protective ozone layer above ... an unusually prolonged period of extremely low temperatures in the ... of the international team behind the study to be published ... researchers found the amount of ozone destroyed in the Arctic ...
... Philadelphia -- Researchers have determined that a combination ... viral E6 can accurately determine the oropharyngeal squamous cell ... derive from HPV16, according to a study published in ... American Association for Cancer Research. "This has immediate ...
Cached Biology News:Study: Residential washers may not kill hospital-acquired bacteria 2Unprecedented Arctic ozone loss occurred last winter 2Unprecedented Arctic ozone loss occurred last winter 3
(Date:1/15/2014)... The Pittcon Organizing Committee is pleased to announce that Innovative ... e-Journal and producer of Food Labs Conference , ... the co-location of Food Labs Conference to be held in ... fee to attend the two-day Food Lab Conference, March 4-5. ...
(Date:1/15/2014)... Look inside the new Preferred Solutions® ... lab, from fluid handling to instruments to supplies. Many ... you order. , Preferred Solutions features a full ... L/S® model for precise flow control and dispensing to ...
(Date:1/15/2014)... and SAN JOSE, California , January ... company developing antibody-drug conjugates for cancer, today announced the appointment ... Directors. Dr Reynolds has over 20 years, development experience gained ... at Seattle Genetics. "I am delighted to welcome ...
(Date:1/15/2014)... 2014 This webinar will focus on ... safety assessment in biosimilars. , Regulatory frameworks are evolving ... development, however the complex nature of biopharmaceuticals makes the ... efficacy extremely challenging. Based on the specific aspects of ...
Breaking Biology Technology:Pittcon Announces Second Year Partnership With Food Safety Tech 2Pittcon Announces Second Year Partnership With Food Safety Tech 3Cole-Parmer Begins 2014 with the Release of Preferred Solutions 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 3Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2
... announces that a new market research report is ... applications, markets and companies ... creation and utilization of materials, devices, and systems ... scale (a nanometer is one billionth of a ...
... strip with two surfaces but only one side, has been ... German mathematician August Mbius. As artist M.C. Escher so vividly ... traverse the "inside" and "outside" surfaces of a Mbius strip ... searching for an example of Mbius symmetry in natural materials ...
... Dec. 20, 2010 Metamark Genetics, Inc., ... and HistoRx, Inc., a diagnostics company developing ... care, today announced a multi-year licensing agreement. ... to the AQUA technology for the clinical ...
Cached Biology Technology:Reportlinker Adds Nanobiotechnologies- applications, markets and companies 2Reportlinker Adds Nanobiotechnologies- applications, markets and companies 3Reportlinker Adds Nanobiotechnologies- applications, markets and companies 4Reportlinker Adds Nanobiotechnologies- applications, markets and companies 5Reportlinker Adds Nanobiotechnologies- applications, markets and companies 6Reportlinker Adds Nanobiotechnologies- applications, markets and companies 7Reportlinker Adds Nanobiotechnologies- applications, markets and companies 8Reportlinker Adds Nanobiotechnologies- applications, markets and companies 9Reportlinker Adds Nanobiotechnologies- applications, markets and companies 10Reportlinker Adds Nanobiotechnologies- applications, markets and companies 11Reportlinker Adds Nanobiotechnologies- applications, markets and companies 12Reportlinker Adds Nanobiotechnologies- applications, markets and companies 13Reportlinker Adds Nanobiotechnologies- applications, markets and companies 14Reportlinker Adds Nanobiotechnologies- applications, markets and companies 15Reportlinker Adds Nanobiotechnologies- applications, markets and companies 16Reportlinker Adds Nanobiotechnologies- applications, markets and companies 17Reportlinker Adds Nanobiotechnologies- applications, markets and companies 18Reportlinker Adds Nanobiotechnologies- applications, markets and companies 19Reportlinker Adds Nanobiotechnologies- applications, markets and companies 20Reportlinker Adds Nanobiotechnologies- applications, markets and companies 21Strange new twist: Berkeley researchers discover Möbius symmetry in metamaterials 2Strange new twist: Berkeley researchers discover Möbius symmetry in metamaterials 3Strange new twist: Berkeley researchers discover Möbius symmetry in metamaterials 4Metamark and HistoRx Announce Licensing Agreement for AQUA® Technology 2
... sensitive reagent for the detection of inorganic ... of recombinant E. coli phosphate-binding protein labeled ... to changes in its environment.How it worksBinding ... rapid and tight (Kd ~ 0.1 M), ...
... Costar strip ejector is a unique product ... strips from their holder. Linkage: This CLS ... to easily match Cornings product number. If ... the old Sigma-Aldrich number (Z71,314-7) or contact ...
... hood ventilates and purifies hazardous chemical ... exhaust. Bonded charcoal filters remove most ... clearance (with access shield open) accommodates ... options include final HEPA filter, work ...
Sigmas E-TOXATE (Limulus Amebocyte Lysate) test kits are intended for the detection and semiquantitation,of endotoxins for research purposes....
Biology Products: