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

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:7/31/2014)... NCT00518336) shows the sustained efficacy, immunogenicity and ... vaccine Cervarix. Women vaccinated with the HPV-16/18 ... nine years, and vaccine efficacy (VE) against ... longest follow-up report for a licensed HPV ... full paper. , HPV and vaccination ...
(Date:7/31/2014)... release is available in German . ... take up gases similar to a sponge that soaks ... for storing hydrogen or greenhouse gases. However, loading of ... Institute of Technology (KIT) now report in Nature ... of the MOF surface. This can be prevented by ...
(Date:7/31/2014)... Becquerel first discovered the photovoltaic effect in 1839, humankind ... of sunlight for its own purposes. In a new ... the FASEB Journal , scientists may ... of sunlight by focusing on a naturally occurring combination ... This conservationor persistence over time and across speciessuggests that ...
Breaking Biology News(10 mins):Sustained efficacy, immunogenicity, and safety for GlaxoSmithKline's HPV vaccine 2Sustained efficacy, immunogenicity, and safety for GlaxoSmithKline's HPV vaccine 3Free pores for molecule transport 2Scientists shine bright new light on how living things capture energy from the sun 2
... An international research team coordinated at the IRCM in ... Led by Dr. Tarik Mry, the IRCM,s President and ... the disease,s "Achilles, heel" and could be targeted to ... effects of current treatments such as chemotherapy and radiation ...
... behave differently. However, that difference isn,t taken into account ... children from chemical exposure, according to Cheryl Rosenfeld, associate ... Bond Life Sciences Center. A series of experiments by ... A (BPA) on later reproductive-associated behaviors using a socially ...
... Scientists at the University of Southampton have created a new ... bone repair therapies for people with bone fractures or those ... The research, carried out by Dr Emmajayne Kingham at ... Glasgow and published in the journal Small , cultured ...
Cached Biology News:Researchers discover 'Achilles' heel' for lymphoid leukemia 2Bisphenol A affects sex-specific reproductive behaviors in a monogamous animal species 2Stem cell breakthrough could lead to new bone repair therapies on nanoscale surfaces 2
(Date:7/31/2014)... Rancho BioSciences , the scientific data ... Suite with tranSMART . Scientists that have ... data in tranSMART to Array Suite for further analysis. ... including the new 1.2 release. Array Suite provides ... the analysis of high dimensional quantification data, including expression, ...
(Date:7/31/2014)... 31, 2014 “Rapid technological advances ... the U.S., increasing unemployment, depressing American consumer spending ... is a Catch 22—we need automated manufacturing if ... fewer jobs,” says economist and corporate relocation expert ... Top 10 Pro-Business States for 2014, co-published with ...
(Date:7/31/2014)... The Kidney Cancer Association (KCA) has established ... magazine, Kidney Cancer News. , Bill Bro, KCA CEO, ... maintained by an international news organization. When we began using ... , This month’s program highlights news of an enzyme that ... a recent study. Kidney Cancer News also presents a report ...
(Date:7/30/2014)... Calif. , July 30, 2014 ... a biopharmaceutical company leading the discovery and development of ... report financial results and highlights for the quarter ended ... the U.S. financial markets close. Regulus ... August 6, 2014, at 5:00 pm Eastern Daylight Time ...
Breaking Biology Technology:Rancho BioSciences, in Partnership with Omicsoft, have Integrated Array Suite with tranSMART 2Rancho BioSciences, in Partnership with Omicsoft, have Integrated Array Suite with tranSMART 3ITRA Global Affiliate’s Pollina Corporate Top 10 Pro-Business States Minimize the Impact of Automation on Middle Class and Unemployment 2ITRA Global Affiliate’s Pollina Corporate Top 10 Pro-Business States Minimize the Impact of Automation on Middle Class and Unemployment 3ITRA Global Affiliate’s Pollina Corporate Top 10 Pro-Business States Minimize the Impact of Automation on Middle Class and Unemployment 4Regulus Announces Timing for Second Quarter 2014 Financial Results Webcast and Conference Call 2Regulus Announces Timing for Second Quarter 2014 Financial Results Webcast and Conference Call 3
... 2012 IndustryWeek magazine today named the ... in Austin, Texas, one of its Top Ten Plants in ... to win the prestigious award.  IndustryWeek noted the ... margins since 2007; 94% error reduction in production documentation process; ...
... BLUE BELL, Pa., Jan. 11, 2012  Inovio Pharmaceuticals, Inc. (NYSE Amex: ... diseases, announced today that Dr. J. Joseph Kim, President and CEO, will ... Conference. Noble Financial 8th Annual Equity Conference ... Hard Rock Hotel   Inovio Presentation ...
... VILLUM FOUNDATION paves the way for a brand new professorship ... in the field of quantum physics, Professor Charles Marcus. ... a physicist of international standing the Niels Bohr Institute can ... DKK from the VILLUM FOUNDATION. The grant has allowed for ...
Cached Biology Technology:Life Technologies Plant in Austin, Texas Named One of IndustryWeek's Top Ten Best Plants for 2011 2Life Technologies Plant in Austin, Texas Named One of IndustryWeek's Top Ten Best Plants for 2011 3Life Technologies Plant in Austin, Texas Named One of IndustryWeek's Top Ten Best Plants for 2011 4Inovio Pharmaceuticals to Present at Noble Financial 8th Annual Equity Conference 2Inovio Pharmaceuticals to Present at Noble Financial 8th Annual Equity Conference 3Niels Bohr Institute gets top researcher from Harvard 2Niels Bohr Institute gets top researcher from Harvard 3
...
... The OEM-EPC is the smallest ... 27 x 60 mm. Parker configured this ... life science OEM markets. Used in carrier ... flow control, liquid dispensing, and hydro-dynamic focusing, ...
... Precision Slide Table is designed for moving ... design provides maximum force output while limiting ... sets of stainless steel ball bearings guided ... or self-compensating shock absorbers provide energy absorption ...
... Serum is obtained from ... from healthy, fasted donors. The ... any way and are maintained ... Total Protein Concentration : ...
Biology Products: