Navigation Links
SU biologist develops method for monitoring shipping noise in dolphin habitat
Date:12/2/2013

A biologist in Syracuse University's College of Arts and Sciences has developed a system of techniques for tracking ships and monitoring underwater noise levels in a protected marine mammal habitat. The techniques are the subject of a groundbreaking article in Marine Pollution Bulletin, focusing on the bottlenose dolphin population in Scotland's Moray Firth.

Nathan Merchant, a postdoctoral researcher in the Department of Biology, co-authored the article with Enrico Pirotta, Tim Barton, and Paul Thompson, of The Institute of Biological and Environmental Sciences at the University of Aberdeen (U.K.).

"Underwater noise levels have been increasing over recent decades, due to escalations in human activity," says Merchant, referring to shipping, pile-driving, and seismic surveys. "These changes in the acoustic environment affect marine mammals because they rely on sound as their primary sensory mode. The disturbance caused by this man-made noise can disrupt crucial activities like hunting for food and communication, affecting the fitness of individual animals."

He adds: "Right now, the million-dollar question is: Does this disturbance lead to changes in population levels of marine mammals? That's what these long-term studies are ultimately trying to find out."

The study focuses on the Moray Firth, the country's largest inlet and home to a population of bottlenose dolphins and various types of seals, porpoises, and whales. This protected habitat also houses construction yards that feed Scotland's ever-expanding offshore wind sector. Projected increases in wind farm construction are expected to bring more shipping through the habitatsomething scientists think could negatively impact on resident marine mammals.

"Different ships emit noise at different levels and frequencies, so it's important to know which types of vessels are crossing the habitats and migration routes of marine mammals," says Merchant, who is based in the research lab of Professor Susan Parks, a specialist in the ecology and evolution of acoustic signaling. "The cumulative effect of many noisy ship passages can raise the physiological stress-level of marine mammals and affect foraging behavior."

Due to a lack of reliable baseline data, Merchant and his collaborators at Aberdeen have figured out how to monitor underwater noise levels, using ship-tracking data and shore-based time-lapse photography. These techniques form a ship-noise assessment toolkit, which Merchant says may be used to study noise from shipping in other habitats.

Parks, for one, is excited about Merchant's accomplishments. "Nathan has been a great addition to our lab," she says. "His strengths in signal processing and noise measurements for ship noise have expanded our capabilities. Underwater noise is a global problem, as major shipping routes connect all of the economies of the world."


'/>"/>

Contact: Rob Enslin
rmenslin@syr.edu
315-443-3403
Syracuse University
Source:Eurekalert

Related biology news :

1. IU biologists offer clearer picture of how protein machine systems tweak gene expression
2. Microbiologists can now measure extremely slow life
3. American Society of Plant Biologists honors early career women scientists
4. In search for a vaccine, IU biologist receives $2.3 million to explore chlamydia genomics
5. Penn biologists identify a key enzyme involved in protecting nerves from degeneration
6. University of Toronto biologists predict extinction for organisms with poor quality genes
7. UC Riverside plant cell biologist receives top scientific honor
8. Biologists turn back the clock to understand evolution of sex differences
9. U-M biologist plays key role in effort to create first comprehensive tree of life
10. Stanford marine biologist Barbara Block wins Rolex Award for Enterprise
11. Double the pain: RUB biologists find the cause of pain in the treatment of fair skin cancer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/17/2017)... April 17, 2017 NXT-ID, Inc. (NASDAQ: ... the filing of its 2016 Annual Report on Form 10-K on ... ... is available in the Investor Relations section of the Company,s website ... SEC,s website at http://www.sec.gov . 2016 Year Highlights: ...
(Date:4/11/2017)... BROOKLYN, N.Y. , April 11, 2017 /PRNewswire-USNewswire/ ... identical fingerprints, but researchers at the New York ... University College of Engineering have found that partial ... fingerprint-based security systems used in mobile phones and ... previously thought. The vulnerability lies in ...
(Date:4/5/2017)... -- KEY FINDINGS The global market for ... of 25.76% during the forecast period of 2017-2025. The ... the growth of the stem cell market. ... INSIGHTS The global stem cell market is segmented on ... stem cell market of the product is segmented into ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... ... for two-dimensional representations of a complex biological network, a depiction of a system ... big mess,” said Dmitry Korkin, PhD, associate professor of computer science at Worcester ...
(Date:10/12/2017)... ... 12, 2017 , ... BioMedGPS announces expanded coverage of SmartTRAK ... module, US Hemostats & Sealants. , SmartTRAK’s US Market for Hemostats and Sealants ... sealants and biologic sealants used in surgical applications. BioMedGPS estimates the market will ...
(Date:10/11/2017)... ... October 11, 2017 , ... The CRISPR-Cas9 ... enabling overexpression experiments and avoiding the use of exogenous expression plasmids. The simplicity ... for performing systematic gain-of-function studies. , This complement to loss-of-function studies, such ...
(Date:10/11/2017)... 2017  VMS BioMarketing, a leading provider of patient support ... Nurse Educator (CNE) network, which will launch this week. The ... health care professionals to enhance the patient care experience by ... other health care professionals to help women who have been ... ...
Breaking Biology Technology: