Navigation Links
New finding shows that mother sharks 'home' to their birthplace to give birth, like salmon and sea turtles
Date:12/5/2013

Research conducted in Bimini in The Bahamas spanning almost two decades shows that female lemon sharks that were born there returned 15 years later to give birth to their own young, confirming this behavior for the first time in sharks. The study began in 1995, and has resulted in the capture, tagging, and release of more than 2,000 baby sharks over the 19-year, ongoing project.

This article, published online on December 5 in the journal Molecular Ecology, entitled, "Two decades of genetic profiling yields first evidence of natal philopatry and long-term fidelity to parturition sites in sharks," was a collaborative effort involving scientists from The Field Museum, Bimini Biological Field Station Foundation, University of Miami and Stony Brook University (SBU). Results suggest that local and international efforts can make a big difference in the struggle to recover the world's coastal shark populations. Sharks have been heavily exploited to supply the Asian restaurants and banquet halls with shark fins, the main ingredient in a highly prized soup of great cultural significance but of no nutritive value.

"We used each shark's individual DNA fingerprint to construct a large family tree," explained Dr. Kevin Feldheim, the A. Watson Armour III Manager of the Pritzker Laboratory for Molecular Systematics and Evolution at The Field Museum and the lead author of the study.

"We found that newborn sharks captured in the mid-1990s left the safety of the islands when they were between five and eight years old. Yet, despite leaving and visiting many other islands in their travels, these sharks 'remember' where they were born after a decade of roving, and are able to find the island again when they are pregnant and ready to give birth," Dr. Feldheim added.

Many researchers had speculated that female sharks have this ability to home back to their birthplace to give birth, but it had never been proven because it is very
'/>"/>

Contact: Cindy Yeast
cdyeast@earthlink.net
202-236-5413
The Institute for Ocean Conservation Science
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Great lakes waterfowl die-offs: Finding the source
2. Findings announced from landmark study on safety of adolescent bariatric surgery
3. Finding psychiatric drugs in the movements of mice
4. Reassuring findings released in national study of influenza vaccine safety in pregnancy
5. Surprise finding reveals how adaptive our immune systems can be
6. Boat noise stops fish finding home
7. New findings on tree nuts and health presented at the Experimental Biology Meeting in Boston, Mass.
8. Surprising findings on hydrogen production in green algae
9. Finding genes for childhood obesity
10. Findings to help in design of drugs against virus causing childhood illnesses
11. The neuroscience of finding your lost keys
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New finding shows that mother sharks 'home' to their birthplace to give birth, like salmon and sea turtles
(Date:7/9/2015)... 07, 2015 Research ... of the "Biometrics for Banking; Market & ... report to their offering. The adoption ... this growth and the forecast is that by ... for companies involved in delivering biometric systems to ...
(Date:7/8/2015)... YORK , July 8, 2015  BD (Becton, ... BD & Guidepoint Mentor, a new program ... Guidepoint,s expert network services. BD is ... to improve healthcare delivery and outcomes and, with the ... entrepreneur will be able to directly engage with industry ...
(Date:7/7/2015)... 7, 2015  Based on its recent analysis ... recognizes Credence ID, LLC with the 2015 Asia-Pacific ... the Year Award. Credence ID has developed a ... mission of offering enrollment and identification solutions to ... ID was formed by experts from the mobile ...
Breaking Biology News(10 mins):Global Banking Biometrics Market 2015-2020 - Market & Technology Analysis, Adoption Strategies and Forecasts 2Global Banking Biometrics Market 2015-2020 - Market & Technology Analysis, Adoption Strategies and Forecasts 3BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 2BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 3Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 2Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 3Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 4Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 5
... Boyce Thompson Institute Associate Scientist Thomas Brutnell is ... researchers who are attempting to solve one of the ... to predict how plants will grow and develop based ... where they are found or planted. Solving this problem ...
... BLOOMINGTON, Ind. -- Two recently diverged populations of a ... contribute to the reproductive isolation that accompanies the origin ... of organic compounds present in the preen oils of ... Ecology . "There,s so much we don,t know ...
... play a major role in how people respond to stress, ... journal Psychophysiology , the investigation was led by scientists ... in collaboration with colleagues from the Universit du Qubec ... who are more defensive are at increased cardiovascular risk, whereas ...
Cached Biology News:BTI's Brutnell leads part of NSF Computational Plant Biology Research System 2BTI's Brutnell leads part of NSF Computational Plant Biology Research System 3Could smell play a role in the origin of new bird species? 2Could smell play a role in the origin of new bird species? 3Men and women respond differently to stress 2
(Date:7/24/2015)... BEIJING , July 24, 2015 Origin Agritech ... supplier of crop seeds in China , ... third quarter fiscal year 2015 ended June 30, 2015, before ... The Company will host a teleconference on August 5th, 2015, ... time to discuss the results. To participate in ...
(Date:7/24/2015)... 2015 , Adds integrated small ... product offering for chronic kidney disease and oncology patients ... complications and dermatology , Increases group revenue and ... ,the Company"), a leading China -based ... biopharmaceutical products, today announced that it has acquired the ...
(Date:7/23/2015)... LOS ANGELES , July 23, 2015 ImmunoCellular ... plans to report financial results for the second quarter 2015 ... hold a conference call and webcast on that day at ... results and provide a business update. The call will be ...   , , , LIVE CALL: ...
(Date:7/23/2015)... , ... July 23, 2015 , ... Science and technology ... to new drug therapies and devices – according to Susan Chang, MD, director of ... session on how science and new technology are impacting the development of new treatments ...
Breaking Biology Technology:Origin Agritech Limited to Announce Third Quarter Fiscal 2015 Unaudited Financial Results on August 5th, 2015 2Origin Agritech Limited to Announce Third Quarter Fiscal 2015 Unaudited Financial Results on August 5th, 2015 33SBio Acquires Zhejiang Wansheng Pharmaceutical 23SBio Acquires Zhejiang Wansheng Pharmaceutical 33SBio Acquires Zhejiang Wansheng Pharmaceutical 4ImmunoCellular Therapeutics to Report Second Quarter 2015 Financial Results on August 6, 2015 2Experts Present How Science and New Technology are Driving New Brain Tumor Treatments and Improving Quality of Life 2Experts Present How Science and New Technology are Driving New Brain Tumor Treatments and Improving Quality of Life 3
... Milwaukee TeraMedica has developed a ... at the Mayo Clinic and UW-Madison, is designed to ... than individual departments. , ,Paul Markham, vice president of ... software when he saw that medical firms were designing ...
... a bill that allows researchers to work together without ... in a patent dispute. After a 1997 court decision, ... art, said Andy Cohn, spokesperson for the Wisconsin ... patent claim though it has caused little trouble ...
... After two days of demostrating Wisconsin's breakthroughs in biotechnology, ... last Wednesday with a discussion of what the state must ... praised the strides Wisconsin has made in research, but explained ... , ,Tom Still, moderator of the panel and president of ...
Cached Biology Technology:TeraMedica offers system integration tool for hospitals 2Out-of-state VCs offer advice on biotech investments 2Out-of-state VCs offer advice on biotech investments 3