Results 11 to 20 of about 7,464 (199)

Experimental field studies to measure behavioral responses of cetaceans to sonar [PDF]

Endangered Species Research, 2016
Substantial recent progress has been made in directly measuring behavioral responses of free-ranging marine mammals to sound using controlled exposure experiments.
Southall, BL, Nowacek, DP, Miller, PJO, Tyack, PL   +3 more
doaj   +2 more sources

NEPA, National Security, and Ocean Noise: The Past, Present, and Future of Regulating the Impact of Navy Sonar on Marine Mammals

Journal of International Wildlife Law & Policy, 2010
Defense and the environment is not an either–or proposition. To choose between them is impossible in this real world of serious defense threats and genuine environmental concerns.
Randall S. Abate
openaire   +3 more sources

Status and future of research on the behavioural responses of marine mammals to U.S. Navy sonar

, 2015
A review of the status and future of research into behavioral responses of marine mammals to naval sonar exposure was undertaken to evaluate the return on investment of current US Navy funded programs, identify the data needs and the contributions of current research programs to meeting data needs, and determine the ability to meet outstanding data ...
Harris, Catriona M, Thomas, Len
openaire   +2 more sources

Changes in the Movement and Calling Behavior of Minke Whales (Balaenoptera acutorostrata) in Response to Navy Training

Frontiers in Marine Science, 2021
Many marine mammals rely on sound for foraging, maintaining group cohesion, navigation, finding mates, and avoiding predators. These behaviors are potentially disrupted by anthropogenic noise.
Ian N. Durbach, Ian N. Durbach, Catriona M. Harris, Cameron Martin, Tyler A. Helble, E. Elizabeth Henderson, Glenn Ierley, Len Thomas, Stephen W. Martin   +8 more
doaj   +1 more source

How Do Marine Mammals Manage and Usually Avoid Gas Emboli Formation and Gas Embolic Pathology? Critical Clues From Studies of Wild Dolphins

Frontiers in Marine Science, 2021
Decompression theory has been mainly based on studies on terrestrial mammals, and may not translate well to marine mammals. However, evidence that marine mammals experience gas bubbles during diving is growing, causing concern that these bubbles may ...
Andreas Fahlman, Andreas Fahlman, Michael J. Moore, Randall S. Wells   +3 more
doaj   +1 more source

A risk function for behavioral disruption of Blainville's beaked whales (Mesoplodon densirostris) from mid-frequency active sonar. [PDF]

PLoS ONE, 2014
There is increasing concern about the potential effects of noise pollution on marine life in the world's oceans. For marine mammals, anthropogenic sounds may cause behavioral disruption, and this can be quantified using a risk function that relates sound
David Moretti, Len Thomas, Tiago Marques, John Harwood, Ashley Dilley, Bert Neales, Jessica Shaffer, Elena McCarthy, Leslie New, Susan Jarvis, Ronald Morrissey   +10 more
doaj   +1 more source

Near-real-time acoustic monitoring of beaked whales and other cetaceans using a Seaglider™. [PDF]

PLoS ONE, 2012
In most areas, estimating the presence and distribution of cryptic marine mammal species, such as beaked whales, is extremely difficult using traditional observational techniques such as ship-based visual line transect surveys.
Holger Klinck, David K Mellinger, Karolin Klinck, Neil M Bogue, James C Luby, William A Jump, Geoffrey B Shilling, Trina Litchendorf, Angela S Wood, Gregory S Schorr, Robin W Baird   +10 more
doaj   +1 more source

A Quieter Ocean: Experimentally Derived Differences in Attentive Responses of Tursiops truncatus to Anthropogenic Noise Playbacks before and during the COVID-19-Related Anthropause

Animals, 2023
The effects of anthropogenic noise continue to threaten marine fauna, yet the impacts of human-produced sound on the broad aspects of cognition in marine mammals remain relatively understudied. The shutdown of non-essential activities due to the COVID-19-
Paige E. Stevens, Veda Allen, Jason N. Bruck   +2 more
doaj   +1 more source

Auditory evoked potential in stranded melon-headed whales (Peponocephala electra): With severe hearing loss and possibly caused by anthropogenic noise pollution

Ecotoxicology and Environmental Safety, 2021
Highly concentrated live mass stranding events of dolphins and whales happened in the eastern coast of China between June and October 2021. The current study adopted the non-invasive auditory evoked-potential technique to investigate the hearing ...
Zhi-Tao Wang, Alexander Ya Supin, Tomonari Akamatsu, Peng-Xiang Duan, Yi-Ning Yang, Ke-Xiong Wang, Ding Wang   +6 more
doaj   +1 more source

Estimating Total Body Lipid Store of Free-Ranging Whales In Vivo Using Drone Photogrammetry and Biologging Tags. [PDF]

Ecol Evol
Lipid reserve mass is a key indicator of individual fitness and population health in wild animal populations, but no method currently exists to measure it in large aquatic species for which capture is impractical. Here, we develop and employ a new method for quantifying lipid stores in a free‐ranging cetacean, the sperm whale (Physeter macrocephalus ...
Burslem A, Isojunno S, Prieto R, Silva MA, Miller PJO.   +4 more
europepmc   +2 more sources