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Cetacean monitoring in the Mariana Islands Range Complex, 2014
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2015
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Series: PIFSC data report DR-15-003
[PDF-3.10 MB]
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Description:"The Pacific Islands Fisheries Science Center's (PIFSC) Cetacean Research Program (CRP) has been conducting visual surveys for cetaceans in the waters surrounding Guam and the Commonwealth of the Northern Mariana Islands (CNMI) and collecting long-term passive acoustic monitoring data at two sites in CNMI as part of an ongoing effort to develop a record of cetacean occurrence in the region. Visual surveys, conducted aboard small boats (7.6 -- 12.2 m), have been ongoing since 2010 off the southern Mariana Islands of Guam, Rota, Saipan, Tinian, and Aguijan (Figure 1). These surveys include the collection of photographs for individual identification, tissue samples for genetic analysis of population structure, and the deployment of satellite tags for assessment of individual movements through the broader region. These surveys have been carried out in partnership with the Commander, U.S. Pacific Fleet Environmental Readiness Division. PIFSC has also maintained long-term acoustic monitoring sites in CNMI since 2010. The various datasets from these efforts are collectively being used to evaluate the seasonal occurrence and distribution, stock structure, and movements of cetaceans within the study area. This report includes a summary of the most recent survey, updates on the status of existing photo-identification catalogs and the creation of new photo-identification catalogs, and summaries of genetic analyses of bottlenose dolphin (Tursiops truncatus) and short-finned pilot whale (Globicephala macrorhynchus) samples collected in the region, preliminary interpretation of satellite telemetry datasets, and the year-round occurrence of cetacean sounds recorded. The Appendices contain the more detailed reports on the mitochondrial and nuclear DNA analyses of bottlenose dolphins and short-finned pilot whales sampled in the Mariana Islands"--Mission. [doi:10.7289/V56M34S8 (http://dx.doi.org/10.7289/V56M34S8)]
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Content Notes:Marie C. Hill, Erin M. Oleson, Allan D. Ligon, Karen K. Martien, Frederick I. Archer, Simone Baumann-Pickering, Andrea R. Bendlin, Louella Dolar, Karlina P.B. Merkens, Aliza Milette-Winfree, Phillip A. Morin, Allyssa Rice, Kelly M. Robertson, Jennifer S. Trickey, Adam C. Ü, Amy Van Cise, and Samuel M. Woodman.
"Issued 27 March 2015."
doi:10.7289/V56M34S8 (http://dx.doi.org/10.7289/V56M34S8)
System requirements: Adobe Acrobat Reader.
Includes bibliographical references.
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Rights Information:Public Domain
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