ML 120708

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Bryde’s whale complex -- Balaenoptera brydei/edeni More
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Jay Barlow
16 Oct 2002 at 10:18

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NOTES: LNS note: Gain applied using Benchmark Media Systems Microphone Preamplifier System MPS-400, 20dB attenuation on both channels. HICEAS cruise notes posted on website: http://swfsc.nmfs.noaa.gov/prd/2002%20Cruises/HICEAS/hiceas_website.htm. Confidence interval assigned by MLNS. 16Jul2004 MLM. DAT case note: "S#212." Notes from HICEAS2002 website: "Acoustics during this survey included passive listening for marine mammals, and active acoustic measurement of backscatter. ...a towed hydrohone array and opportunistic deployment of Navy surplus sonobuoys for recording baleen whales. Sonobuoys were deployed to record cetacean sounds that could not be successfully recorded from the hydrophone array. The focus of these efforts was to obtain recordings of Brydes and sei whales, especially for animals from which genetic samples were obtained. Sonobuoys (type 53) were typically deployed within _nmi of a baleen whale that had been sighted by the visual team. Sonobuoy signals were recorded on a DAT recorder and were monitored using a scrolling spectrographic display.A total of 22 type 53 low frequency sonobuoys were deployed from the Jordan (ship,MLM)." SEAOCEAN

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