Navigation Links
Lone whales shout to overcome noise
Date:7/6/2010

Just like people in a bar or other noisy location, North American right whales increase the volume of their calls as environmental noise increases; and just like humans, at a certain point, it may become too costly to continue to shout, according to marine and acoustic scientists.

"The impacts of increases in ocean noise from human activities are a concern for the conservation of marine animals like right whales," said Susan Parks, assistant professor of acoustics and research associate, Applied Research Laboratory, Penn State. "The ability to change vocalizations to compensate for environmental noise is critical for successful communication in an increasingly noisy ocean."

Right whales are large baleen whales that often approach close to shore. They may have been given the name because they were the right whales to hunt as they are rich in blubber, slow swimming and remain afloat after death. Consequently, whalers nearly hunted these whales to extinction. Currently right whales are monitored to determine the health and size of the population. The northern and southern right whales are on the endangered species list.

"Right whale upcalls are used extensively for passive acoustic monitoring in conservation efforts to protect this endangered species," said Parks.

Whales produce upcalls, sometimes called contact calls, when they are alone or in the process of joining with other whales. An upcall begins low and rises in pitch. It is the most frequent call produced by right whales.

Parks and her colleagues, Mark Johnson and Peter L. Tyack, Woods Hole Oceanographic Institution and Douglas Nowacek, Duke University, looked at short-term modifications of calling behavior of individual North Atlantic right whales in varying environmental noise situations. They report their results in today's (July 6) issue of Biology Letters.

The researchers' data came from right whales tagged with acoustic suction cup tags. They listened to tag r
'/>"/>

Contact: A'ndrea Elyse Messer
aem1@psu.edu
814-865-9481
Penn State
Source:Eurekalert  

Page: 1 2 3

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. Northern right whales head south to give birth, leave genetic fingerprints with NOAA researchers
4. Warning buoys for right whales installed along Massachusetts Bay
5. Killer whales, blind bats, discriminating dolphins, mating birds
6. Whales and dolphins influence new wind turbine design
7. Unique study shows oil, gas seismic work not affecting Gulf sperm whales
8. UBC researcher reveals humpback whales dining habits -- and costs
9. High numbers of right whales seen in Gulf of Maine
10. Early whales gave birth on land, fossil find reveals
11. Older killer whales make the best mothers
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Lone whales shout to overcome noise
(Date:7/25/2014)... a molecular testing panel developed at UPMC greatly ... surgery for patients with thyroid nodules and cancer, ... Institute (UPCI), partner with UPMC CancerCenter., The test, ... other diagnostic testing agencies, improved the chances of ... percent, according to the study published this month ...
(Date:7/24/2014)... NEW YORK, NY (July 24, 2014) Scientists ... Research Institute are one step closer to creating ... from a patient,s own cells. , For ... stem (iPS) cells lines from skin samples of ... they developed an accelerated protocol to induce these ...
(Date:7/24/2014)... /PRNewswire-iReach/ -- The Geneva Healthcare Suite, an innovative technology ... emergency room wait times by an average of 92 ... according to a recent study published in the Academic ... the suite to access data from incoming patients, implanted ... "Using Geneva,s technology platform we have been able to ...
Breaking Biology News(10 mins):Test increases odds of correct surgery for thyroid cancer patients 2Test increases odds of correct surgery for thyroid cancer patients 3NYSCF scientists one step closer to cell therapy for multiple sclerosis patients 2UC San Diego Medical Center Cuts Average ER Wait Time by 92 Minutes using the Geneva Healthcare Suite 2UC San Diego Medical Center Cuts Average ER Wait Time by 92 Minutes using the Geneva Healthcare Suite 3
... to develop and evaluate new tools to control the ... five year, 12 million project involving sixteen partners in ... Framework programme. Because malaria is transmitted by mosquitoes, ... Wide scale use of insecticides on bednets and ...
... has long been used as a crop fertilizer, but the ... in manure is ever present. The ratio of nitrogen to ... needs of most crops. Therefore, crops tend to be overloaded ... but the excess phosphorus from the process can damage the ...
... "The rapid translation of biologically-based laboratory discoveries into daily ... trip back from the clinic to the laboratory, to ... behavior. It is imperative for basic researchers to understand ... the knowledge and skills to integrate and use new ...
Cached Biology News:€12 million ($16.9 million) project to develop new tools for malaria control 2
(Date:7/24/2014)... Yung-Eun Sung has announced that they have developed ... which can be applied as high performance electrodes ... is both a group leader at the Center ... (IBS) and a professor at the Seoul National ... regards to the development of relative simplicity, scalablity, ...
(Date:7/24/2014)... Professor of Engineering at the University of Delaware, ... problems in energy engineering, environmental sustainability and electronics. ... porous rock with a well-defined, crystalline structure. At ... precisely decided that zeolites can separate molecules with ... angstrom (one-tenth of a nanometer), making them useful ...
(Date:7/24/2014)... -- Research and Markets has announced the ... report to their offering.  ... in vitro growth of plant or animal cells for ... production. Cell culture is a crucial step in tissue ... culture consumables are necessary for the in vitro production ...
(Date:7/24/2014)... California (PRWEB) July 24, 2014 ... to advances in modeling lithium-ion battery storage capacity. ... benefit from a theoretical model created at ... University that predicts how carbon components will ... energy storage emphasizes the urgent need for higher-performance ...
Breaking Biology Technology:University of Delaware researcher describes new approach for creating organic zeolites 2Global Cell Culture Market 2014-2018: Key Vendors are Becton, Dickinson and Co, EMD, GE Healthcare, Lonza Group, Sigma Aldrich and Thermo Fisher Scientific 2Getting More Life out of Lithium-ion Batteries 2
... SAN DIEGO, Oct. 4 Orexigen® Therapeutics, Inc. (Nasdaq: ... the treatment of obesity, today announced the schedule of ... taking place at the 28th Annual Scientific Meeting of ... the San Diego Convention Center, October 8-12, 2010.Sunday, October ...
... PDL BioPharma, Inc. (PDL) (Nasdaq: PDLI ) ... special dividend payment of $0.50 per share to all stockholders ... record date. As previously announced, the conversion ... 15, 2012 was adjusted to 140.571 shares of common stock ...
... 1 Biotech posted its strongest monthly and quarterly performance ... September rally for equities in more than 70 years. The ... and 13 percent in the third quarter. The Dow Jones ... appreciation during what historically has been a bad month for ...
Cached Biology Technology:Orexigen® Therapeutics Announces Upcoming Data Presentations at the 28th Annual Scientific Meeting of The Obesity Society 2Biotech Posts Strong Third Quarter Performance as Capital Markets Go on a Tear 2Biotech Posts Strong Third Quarter Performance as Capital Markets Go on a Tear 3Biotech Posts Strong Third Quarter Performance as Capital Markets Go on a Tear 4
UltraPure DNase/RNase-Free Distilled Water is designed for use in all molecular biology applications. It is 0.1-m membrane-filtered and tested for DNase and RNase activity....
...
... suitable for use with RNA. ... with 0.1% diethylpyrocarbonate (DEPC) and ... DEPC.DNase/RNase-Free Distilled WaterDistilled Water is ... molecular biology applications. It is ...
IHC detection kit for BrdU in cells and tissues...
Biology Products: