3S2 - Behavioral Response Studies of Cetaceans to Naval Sonar Signals in Norwegian Waters
One primary goal of this international cooperative research program is to investigate behavioral reactions and the sound exposures required to elicit them of three species of whales: bottlenose whales, minke whales, and humpback whales to Low Frequency Active Sonar (LFAS) signals. The results will b...
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| Format: | Text |
| Language: | English |
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2012
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| Online Access: | http://www.dtic.mil/docs/citations/ADA573564 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA573564 |
| Summary: | One primary goal of this international cooperative research program is to investigate behavioral reactions and the sound exposures required to elicit them of three species of whales: bottlenose whales, minke whales, and humpback whales to Low Frequency Active Sonar (LFAS) signals. The results will be interpreted to generate dose-response functions, in order to help establish safety limits for sonar operations for these species. Another primary goal of the program is to experimentally assess the effectiveness of ramp-up, a common mitigation protocol in which source levels are gradually increased prior to the onset of fulllevel transmissions. Ramp-up is designed 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 for animals in their natural environment. We have developed and implemented an experimental design to test whether the ramp-up procedure is an effective protocol to reduce risk of harm from sonar activities. The original document contains color images. |
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