Navigation Links
Acoustical Meeting, Nov. 10-14, 2008 in Miami, Florida
Date:11/5/2008

Raton, FL, set out in 1991 to investigate what might be the underlying cause for these collisions. Gerstein disagreed with prevailing beliefs that manatees were just too slow and are unable to learn to get out of the way of the boats, so the boats had to slow down. He noted manatees have the "cognitive prowess to learn and remember as well as dolphins and killer whales," and when motivated "manatees can explode with a burst of power and move about 21 feet in a second." He asked some simple questions "After a manatee has been hit more than once (some have been hit up to 50 different times) why doesn't the animal learn to get out of the way?" Is it possible manatees are not aware or cannot hear the sounds of an approaching boat?

After a comprehensive series of hearing studies, Gerstein's research revealed that manatees cannot hear the dominant low frequency sounds of boats and that those sounds do not propagate well in shallow water. "Ironically, slow speed zones result in quieter and lower frequency sounds which manatees can not hear and locate in many shallow water conditions." In Florida's murky waters, where boaters and manatees cannot see each other, slow speed zones exacerbate the risks of collisions, by making these boats inaudible to manatees and increasing the transect times through manatee habitats.

Gerstein and his late colleague, Dr. Joe Blue, developed a narrowly focused alarm that emits a high-frequency signal in front of boats and other watercraft to alert manatees that may be in the path of an oncoming craft.

Gerstein has been testing this alarm in a NASA wildlife refuge where controlled studies are possible. He has reported that 100 percent of the controlled approaches toward manatees by a boat with the alarm have resulted in the manatees avoiding the boat up to 30 yards away. Only 3 percent of the manatees approached by the same boat, without the alarm, moved to avoid the boat. Gerstein notes that the alarm is tailo
'/>"/>

Contact: Jason Bardi
jbardi@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

2

GOOD

Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Related biology news :

1. 156th Acoustical Society of America Meeting, Nov. 10-14, 2008 in Miami
2. At ACS national meeting, global initiative set to tackle water issues
3. Society for General Microbiology 161st Meeting, University of Edinburgh
4. Scripps Florida scientists awarded $1.5M to fight major water and food parasites
5. Floridas worm grunters collect bait worms by inadvertently imitating mole sounds
6. New studies find global warming will have significant economic impacts on Florida coasts
7. Florida researchers receive JDRF Excellence in Clinical Research Award
8. Fecal microorganisms inhabit sandy beaches of Florida
9. DHS Expands Biometrics-at-Sea Program to the Florida Straits
10. ASNTR 15th anniversary meeting to be held May 1-3 in Florida
11. New south Florida nursery to focus on staghorn corals
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/23/2013)... 23, 2013) A new report from the Institute ... pupils engage in at least 60 minutes of vigorous ... No more than half of American youth meet current ... or moderate intensity physical activity daily, according to the ... are in school for nearly half of their waking ...
(Date:5/23/2013)... largest and fastest growing open-access publishers, announces the ... Bioengineering and Biotechnology . , A broad ... Bioengineering and Biotechnology will provide a single ... biotechnology research to be disseminated and discussed. ... will provide an open-science and interactive web platform ...
(Date:5/22/2013)... Forest Service scientists are part of "Landscapes of Resilience", ... Foundation, will examine how collaborative planning and stewardship of ... , The TKF Foundation announced today that Landscapes of ... funding. In addition to research on the role of ... the 3-year, $585,000 grant will contribute to the creation ...
Breaking Biology News(10 mins):Schools should provide students with daily physical activity, IOM recommends 2Frontiers launches new open-access journal in Bioengineering and Biotechnology 2'Landscapes of Resilience' to study how people use nature as a source of recovery 2
... , April 27 The Breema Center today ... Germany the 12-16 of May, 2010. Breema is a ... emphasizes the mind-body connection.  The Intensive program is designed to ... long time students deepen their understanding of Breema and its ...
... JINZHOU CITY, China , April 27 /PRNewswire-Asia/ ... a leading supplier of,automotive electric parts, suspension products and engine components in ... through one of,its subsidiaries, which is Jinzhou Wanyou Mechanical Parts Co., Ltd ("Wanyou"). ... On 23 ...
... Debt management experts at MoneySolve say they,re not surprised by ... Post Office. , , , ... one in three people are keeping the full extent of their financial woes ... including mortgages, stands at pounds 9,732.51 but many only admit to owing half ...
Cached Biology News:Breema Center to Host International Intensive Week in Buhl, Germany 2Breema Center to Host International Intensive Week in Buhl, Germany 3Wonder Auto Obtains a New World-class Customer in Germany 2Wonder Auto Obtains a New World-class Customer in Germany 3MoneySolve 'Unsurprised' by Secret Debt Statistics 2
(Date:5/23/2013)... , May 23, 2013 PuraMed BioScience ... and marketer of over-the-counter (OTC) medicinal and healthcare ... opinion on the company based on low market ... , Non-Prescription, All Natural Product to Treat Migraine ... Outperforms #1 Prescription Competitor , Currently Available ...
(Date:5/23/2013)... MA (PRWEB) May 23, 2013 ... inch wide and provide 15 mm travel range ... The small dimensions make these new positioners ... confined spaces. A vacuum rated version is also ... Drawings, specifications and datasheets can be found at: ...
(Date:5/23/2013)... , May 23, 2013 Virobay, Inc. today ... pain has reached an important milestone, as Virobay has ... - a selective cathepsin S inhibitor.   ... double-blind, randomized, placebo-controlled study designed to evaluate the safety, ... in healthy adults. "The initiation of this ...
(Date:5/23/2013)... 23, 2013 Z Trim Holdings, Inc. (OTC ... a variety of industries, announced that Chef ... at this year,s National Restaurant Association ("NRA") NRA Show, ... of the Research Chefs Association.  Chef Ryan spoke on ... the Bad and the Ugly," joining four other prestigious ...
Breaking Biology Technology:PuraMed BioScience (PMBS) Issued Alert Based on Market Cap of $721,756 2PuraMed BioScience (PMBS) Issued Alert Based on Market Cap of $721,756 3Precision Positioning System Uses Miniaturezed Piezo Linear Motor: LPS-24 Linear Stage by PI 2Virobay, Inc. initiates a Phase 1 Trial of VBY-036, a compound intended for the treatment of neuropathic pain 2Virobay, Inc. initiates a Phase 1 Trial of VBY-036, a compound intended for the treatment of neuropathic pain 3Z Trim's Chef Erin Ryan sits on Expert Panel at NRA Show 2Z Trim's Chef Erin Ryan sits on Expert Panel at NRA Show 3
... Inc. (Nasdaq: ITMN ) today announced that five ... the company,s research programs related to the hepatitis C virus ... Meeting of the European Association for the Study of the ... abstracts are expected to be available at www.easl.ch . ...
... ANNAPOLIS, Md., March 18 The following event was announced ... , WHAT: We Work for Health of ... health, academia, education, labor and business that will discuss the ... important to the survival and growth of medical innovation in ...
... to assess aspirin effectDENVER, March 18 Corgenix ... developer and marketer of diagnostic test kits, has ... March 29 - 31 at the American College ... annual meeting will take place in Orlando, Fla., ...
Cached Biology Technology:InterMune to Present Abstracts on HCV Protease Inhibitor ITMN-191 and HCV Development Program at the EASL Meeting 2InterMune to Present Abstracts on HCV Protease Inhibitor ITMN-191 and HCV Development Program at the EASL Meeting 3Maryland Business, Academic and Biopharma Groups Underscore Commitment to Medical Innovation, Finding Cures and Supporting the Economy 2Corgenix to Exhibit AspirinWorks(R) Test at ACC.09 2Corgenix to Exhibit AspirinWorks(R) Test at ACC.09 3
... For real-time or pre-programmed liquid ... electrochemistry, or general liquid-handling research ... millisecond accuracy. Run ... Microprocessor-based for accuracy and ...
... automated perfusion system. For real-time or ... biophysics, electrochemistry, or general liquid-handling research ... millisecond accuracy Run experiments automatically ... accuracy and flexibility Turnkey perfusion ...
... are complete ready-to-use reagents for the isolation ... specifically formulated for the isolation of genomic ... specifically formulated for the isolation of genomic ... DNAzol Reagents can be used for restriction ...
Apoptosis Detection Systems and Reagents...
Biology Products: