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:7/11/2014)... transplantation of mesenchymal stem cells can stimulate neurogenesis in ... Alzheimer,s disease (AD) and improve tissue and function injury ... reported on the therapeutic effect of adipose-derived stem cells ... effect on oxidative injury and neurogenesis in the brain ... School of Life Sciences, Tsinghua University, China transplanted ADSCs ...
(Date:7/11/2014)... hippocampus, the marginal division of the striatum is ... the impact degree of substance P in the ... Yan Yu and his team, College of Biophotonics, ... staining, that substance P receptor, neurokinin 1 was ... division of normal rats. Unilateral or bilateral injection ...
(Date:7/11/2014)... the normal circumstances, astrocytes participate in normal ... and exhibit therapeutic and repairing effects on ... have found that nerve cells differentiated from ... reduced viability, which produces influences on subsequent ... General Hospital, Hebei United University, China demonstrated ...
Breaking Biology News(10 mins):
... 2011 With millions of people warding off winter,s ... raising red flags about the potential health effects of ... in the American Chemical Society,s (ACS,) journal, Chemical ... inhaled into the lungs from wood smoke may have ...
... Darwin, the "tree of life" has been the preeminent metaphor ... changing of individual species. The discovery that a large ... species of fungus to another, however, significantly strengthens the argument ... more appropriate. "The fungi are telling us something important ...
... reports that family mealtimes that contain three ingredients in the ... who have chronic asthma. "Family mealtimes, when they,re done ... reduced risk of substance abuse, eating disorders, and obesity. In ... we can see minute by minute which factors deliver these ...
Cached Biology News:Discovery of jumping gene cluster tangles tree of life 2Discovery of jumping gene cluster tangles tree of life 3Recipe for family mealtimes calls for 3 ingredients in the right amounts 2
(Date:7/11/2014)... DUBLIN , July 11, 2014 ... "International Transfection Technology Market - Global Industry Analysis, ... report to their offering. ... to introduce nucleic acids (either DNA or RNA) into ... therapy, mutation of cancer cells and protein metabolism by ...
(Date:7/11/2014)... BCC Research ( http://www.bccresearch.com ) reveals in its new ... GLOBAL MARKETS , the global market for digital polymerase ... 2013. This is estimated to grow to $490 billion ... (CAGR) of 28.6%. , New digital PCR technology has ... the broader PCR field. The opportunities presented by this ...
(Date:7/11/2014)... EPFL and the University of  Geneva  (UNIGE) ... P. Donoghue . The American neuroscientist is to head ... The new Wyss Center for Bio- and Neuro-Engineering, ... , has named as its director one of the ... founder of Brown University,s Institute for Brain Science, has ...
(Date:7/11/2014)... - Sunovion Pharmaceuticals Canada Inc. (Sunovion) today announced that ... use as a once-daily adjunctive therapy for the treatment ... not satisfactorily controlled with conventional therapy.  APTIOM TM ... years of age. Epilepsy is one ... Epilepsy Canada, it affects 0.6% of the population and ...
Breaking Biology Technology:International Transfection Technology Market - Industry Analysis, Size, Share, Growth, Trends and Forecast to 2019 2Global Market for Digital Polymerase Chain Reaction Technology to Reach $490 Billion by 2018; Equipment Sector Accounts for the Fastest Growing Segment With 33% CAGR 2Global Market for Digital Polymerase Chain Reaction Technology to Reach $490 Billion by 2018; Equipment Sector Accounts for the Fastest Growing Segment With 33% CAGR 3John P. Donoghue is Taking the Lead at the Wyss Center and is Appointed Professor at EPFL and University of Geneva 2John P. Donoghue is Taking the Lead at the Wyss Center and is Appointed Professor at EPFL and University of Geneva 3Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 2Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 3Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 4
... Radio frequency identification technology is often touted as a way ... world, the technology is bringing other, perhaps more important benefits: ... supply chain now, and there are tremendous applications in health ... the marketplace," said Reik Read, an analyst with Robert ...
... Madison, Wis. Wisconsin's research and development funding has exceeded expectations, reaching ... had set a target of $3.3 billion by 2005. , ... R&D spending per capita, and 13 th in academic R&D ... match the growth rate in R&D the last few years," said ...
... - TEKLYNX International a developer of ... (AIDC) marketplace, has announced LABELVIEW 8 label design and ... code label printing. , ,The updates enhance label ... greatly extend Pocket LABELVIEW printer support to over 1,000 ...
Cached Biology Technology:RFID can be a matter of life and death in the medical world 2RFID can be a matter of life and death in the medical world 3RFID can be a matter of life and death in the medical world 4RFID can be a matter of life and death in the medical world 5New report says Wisconsin R&D spending exceeding expectations 2
MOUSE ANTI HUMAN CYTOKERATIN 1-8...
Immunogen: Tissue / cell preparation. (Murine EHS laminin preparation) Storage: -20 C, Avoid Freeze/Thaw Cycles...
p-Raf-1 (Ser 338/Tyr 341)-R...
Rabbit polyclonal to Syntrophin alpha 1 ( Abpromise for all tested applications). entrezGeneID: 6640 SwissProtID: Q13424...
Biology Products: