Northern bottlenose whales in a pristine environment respond strongly to close and distant navy sonar signals
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چکیده
منابع مشابه
Beaked Whales Respond to Simulated and Actual Navy Sonar
Beaked whales have mass stranded during some naval sonar exercises, but the cause is unknown. They are difficult to sight but can reliably be detected by listening for echolocation clicks produced during deep foraging dives. Listening for these clicks, we documented Blainville's beaked whales, Mesoplodon densirostris, in a naval underwater range where sonars are in regular use near Andros Islan...
متن کاملBlue whales respond to simulated mid-frequency military sonar
Mid-frequency military (1-10 kHz) sonars have been associated with lethal mass strandings of deep-diving toothed whales, but the effects on endangered baleen whale species are virtually unknown. Here, we used controlled exposure experiments with simulated military sonar and other mid-frequency sounds to measure behavioural responses of tagged blue whales (Balaenoptera musculus) in feeding areas...
متن کاملImpacts of Navy Sonar on Whales and Dolphins: Now beyond a Smoking Gun?
The risks military sonar poses to cetaceans received international attention with a highly-publicized mass stranding of Cuvier’s beaked whales (Ziphius cavirostris), Blainville’s beaked whales (Mesoplodon densirostris), and northern minke whales (Balaenoptera acutorostrata) in the Bahamas in 2000. This was the first time that the US Government determined a stranding to be the result of mid-freq...
متن کاملNavy Sonar Signals in Norwegian Waters : Behavioral Response Studies of Cetaceans to
Data on the responsiveness of cetaceans to sonar signals are lacking, with only a few species having been studied in relation to a few types of sonar signals, mostly SURTASS-LFA (Nowacek et al., 2007). Marine mammals have been shown to react to underwater noise (Richardson et al., 1995), and captive research has documented hearing (Schlundt et al., 2000) and stress (Romano et al., 2004) effects...
متن کامل3S: Behavioral Response Studies of Cetaceans to Navy Sonar Signals in Norwegian Waters
Another goal of the program is to assess the effectiveness of “ramp-up,” a common mitigation protocol in which source levels are gradually increased prior to the onset of full-level transmissions. Ramp-up is thought to give nearby animals some time to move away before sonar transmissions reach maximum levels. However, it is unknown whether or not this protocol is actually effective. We have dev...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society B: Biological Sciences
سال: 2019
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2018.2592