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      Long-term passive acoustic recordings track the changing distribution of North Atlantic right whales ( Eubalaena glacialis) from 2004 to 2014

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      Scientific Reports
      Nature Publishing Group UK

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          Abstract

          Given new distribution patterns of the endangered North Atlantic right whale (NARW; Eubalaena glacialis) population in recent years, an improved understanding of spatio-temporal movements are imperative for the conservation of this species. While so far visual data have provided most information on NARW movements, passive acoustic monitoring (PAM) was used in this study in order to better capture year-round NARW presence. This project used PAM data from 2004 to 2014 collected by 19 organizations throughout the western North Atlantic Ocean. Overall, data from 324 recorders (35,600 days) were processed and analyzed using a classification and detection system. Results highlight almost year-round habitat use of the western North Atlantic Ocean, with a decrease in detections in waters off Cape Hatteras, North Carolina in summer and fall. Data collected post 2010 showed an increased NARW presence in the mid-Atlantic region and a simultaneous decrease in the northern Gulf of Maine. In addition, NARWs were widely distributed across most regions throughout winter months. This study demonstrates that a large-scale analysis of PAM data provides significant value to understanding and tracking shifts in large whale movements over long time scales.

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          Controlling the False Discovery Rate: A Practical and Powerful Approach to Multiple Testing

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            Slow adaptation in the face of rapid warming leads to collapse of the Gulf of Maine cod fishery

            Several studies have documented fish populations changing in response to long-term warming. Over the past decade, sea surface temperatures in the Gulf of Maine increased faster than 99% of the global ocean. The warming, which was related to a northward shift in the Gulf Stream and to changes in the Atlantic Multidecadal Oscillation and Pacific Decadal Oscillation, led to reduced recruitment and increased mortality in the region's Atlantic cod (Gadus morhua) stock. Failure to recognize the impact of warming on cod contributed to overfishing. Recovery of this fishery depends on sound management, but the size of the stock depends on future temperature conditions. The experience in the Gulf of Maine highlights the need to incorporate environmental factors into resource management.
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              Acoustic masking in marine ecosystems: intuitions, analysis, and implication

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                Author and article information

                Contributors
                genevieve.davis@noaa.gov
                Journal
                Sci Rep
                Sci Rep
                Scientific Reports
                Nature Publishing Group UK (London )
                2045-2322
                18 October 2017
                18 October 2017
                2017
                : 7
                : 13460
                Affiliations
                [1 ]ISNI 0000 0001 2301 4905, GRID grid.474350.1, NOAA Northeast Fisheries Science Center, ; 166 Water Street, Woods Hole, MA 02543 USA
                [2 ]ISNI 0000 0004 0386 3207, GRID grid.266685.9, University of Massachusetts Boston, 100 Morrissey Blvd, ; Boston, MA 02125 USA
                [3 ]ISNI 0000 0004 0504 7510, GRID grid.56466.37, Woods Hole Oceanographic Institution, ; 266 Woods Hole Road, Woods Hole, MA 02543 USA
                [4 ]Naval Facilities Engineering Command Atlantic, Norfolk, VA 23508 USA
                [5 ]ISNI 0000 0001 2231 4236, GRID grid.474331.6, NOAA Alaska Fisheries Science Center, ; 7600 Sand Point Way N.E., Seattle, WA 98115 USA
                [6 ]ISNI 0000 0004 0509 3365, GRID grid.419989.4, New Jersey Department of Environmental Protection, ; Trenton, NJ 08625 USA
                [7 ]ISNI 000000041936877X, GRID grid.5386.8, Bioacoustics Research Program, Cornell Lab of Ornithology, Cornell University, ; 159 Sapsucker Woods Road, Ithaca, NY 14850 USA
                [8 ]JASCO Applied Sciences, 32 Troop Ave, Dartmouth, NS B3B 1Z1 Canada
                [9 ]Dolphin Communication Project, Port St. Lucie, FL 34985 USA
                [10 ]NOAA Stellwagen Bank National Marine Sanctuary, 175 Edward Foster Road, Scituate, MA 02066 USA
                [11 ]ISNI 0000 0004 0627 2787, GRID grid.217200.6, Scripps Institution of Oceanography, University of California San Diego, ; 9500 Gilman Drive MC 0205, La Jolla, CA 92037 USA
                [12 ]ISNI 0000 0004 1936 7961, GRID grid.26009.3d, Nicholas School of the Environment, , Duke University Marine Laboratory, ; 135 Duke Marine Lab Road, Beaufort, NC 28516 USA
                [13 ]ISNI 0000 0001 2112 1969, GRID grid.4391.f, Oregon State University, ; 2030 SE Marine Science Drive, Newport, OR 97365 USA
                [14 ]New England Aquarium, Central Wharf, Boston, MA 02110 USA
                [15 ]ISNI 0000 0001 2173 5688, GRID grid.418256.c, Fisheries and Oceans Canada, Bedford Institute of Oceanography, 1 Challenger Drive, ; Dartmouth, NS B2Y 4A2 Canada
                [16 ]ISNI 0000 0001 2189 1568, GRID grid.264484.8, Syracuse University, ; 107 College Place, Syracuse, NY 13244 USA
                [17 ]ISNI 0000 0000 9388 4992, GRID grid.410415.5, The Scottish Association for Marine Science (SAMS), ; Oban, PA37 1QA Scotland UK
                [18 ]ISNI 0000 0001 2231 1780, GRID grid.473841.d, NOAA Southeast Fisheries Science Center, ; 75 Virginia Beach Drive, Miami, FL 33149 USA
                [19 ]ISNI 0000000122986657, GRID grid.34477.33, University of Washington, Applied Physics Laboratory, ; 1013 NE 40th Street, Seattle, WA 98105 USA
                [20 ]Maine Department of Marine Resources, West Boothbay Harbor, ME 04575 USA
                [21 ]ISNI 0000 0000 9001 0296, GRID grid.426776.6, Allied Whale, College of the Atlantic, ; 105 Eden Street, Bar Harbor, ME 04609 USA
                [22 ]ISNI 0000 0004 1936 7961, GRID grid.26009.3d, Pratt School of Engineering, Duke University, ; Durham, NC 27708 USA
                Author information
                http://orcid.org/0000-0001-6663-627X
                http://orcid.org/0000-0002-8598-9705
                Article
                13359
                10.1038/s41598-017-13359-3
                5647423
                29044130
                891d9535-7413-496b-a1fb-687c6c95e040
                © The Author(s) 2017

                Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

                History
                : 2 June 2017
                : 21 September 2017
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