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  • Eubalaena glacialis  (3)
  • Pinniped  (2)
  • 2010-2014  (5)
  • 1
    facet.materialart.
    Unknown
    Rope trauma, sedation, disentanglement, and monitoring-tag associated lesions in a terminally entangled North Atlantic right whale (Eubalaena glacialis) (2013)
    John Wiley & Sons
    Details
    Publication Date: 2022-05-25
    Description: Author Posting. © Society for Marine Mammalogy, 2012. Re-use of this article is permitted in accordance with the Terms and Conditions set out at http://wileyonlinelibrary.com/onlineopen#OnlineOpen_Terms. The definitive version was published in Marine Mammal Science 29 (2013): E98–E113, doi:10.1111/j.1748-7692.2012.00591.x.
    Description: A chronically entangled North Atlantic right whale, with consequent emaciation was sedated, disentangled to the extent possible, administered antibiotics, and satellite tag tracked for six subsequent days. It was found dead 11 d after the tag ceased transmission. Chronic constrictive deep rope lacerations and emaciation were found to be the proximate cause of death, which may have ultimately involved shark predation. A broadhead cutter and a spring-loaded knife used for disentanglement were found to induce moderate wounds to the skin and blubber. The telemetry tag, with two barbed shafts partially penetrating the blubber was shed, leaving barbs embedded with localized histological reaction. One of four darts administered shed the barrel, but the needle was found postmortem in the whale with an 80º bend at the blubber-muscle interface. This bend occurred due to epaxial muscle movement relative to the overlying blubber, with resultant necrosis and cavitation of underlying muscle. This suggests that rigid, implanted devices that span the cetacean blubber muscle interface, where the muscle moves relative to the blubber, could have secondary health impacts. Thus we encourage efforts to develop new tag telemetry systems that do not penetrate the subdermal sheath, but still remain attached for many months.
    Description: Funding from NOAA Cooperative Agreement NA09OAR4320129, PO EA133F09SE4792, M. S. Worthington Foundation, North Pond Foundation, Sloan and Hardwick Simmons, and Woods Hole Oceanographic Institution Marine Mammal Center.
    Keywords: Right whale ; Eubalaena glacialis ; Entanglement ; Trauma ; Shark predation ; Tag
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 2
    facet.materialart.
    Unknown
    Behavioral impacts of disentanglement of a right whale under sedation and the energetic cost of entanglement (2014)
    Details
    Publication Date: 2022-05-25
    Description: Author Posting. © The Author(s), 2013. This is the author's version of the work. It is posted here by permission of Society for Marine Mammalogy for personal use, not for redistribution. The definitive version was published in Marine Mammal Science 30 (2014): 282–307, doi:10.1111/mms.12042.
    Description: Protracted entanglement in fishing gear often leads to emaciation through reduced mobility and foraging ability, and energy budget depletion from the added drag of towing gear for months or years. We examined changes in kinematics of a tagged entangled North Atlantic right whale (Eg 3911), before, during and after disentanglement on 15 Jan 2011. To calculate the additional drag forces and energetic demand associated with various gear configurations, we towed three sets of gear attached to a load-cell tensiometer at multiple speeds. Tag analyses revealed significant increases in dive depth and duration; ascent, descent and fluke stroke rates; and decreases in root mean square fluke amplitude (a proxy for thrust) following disentanglement. Conservative drag coefficients while entangled in all gear configurations (mean ± SD Cd,e,go = 3.4x10-3 ± 0.0003, Cd,e,gb = 3.7x10-3 ± 0.0003, Cd,e,sl = 3.8x10-3 ± 0.0004) were significantly greater than in the nonentangled case (Cd,n = 3.2x10-3±0.0003; P = 0.0156, 0.0312, 0.0078 respectively). Increases in total power input (including standard metabolism) over the nonentangled condition ranged 1.6%-120.9% for all gear configurations tested; locomotory power requirements increased 60.0%-164.6%. These results highlight significant alteration to swimming patterns, and the magnitude of energy depletion in a chronically entangled whale.
    Description: Funding sources include NOAA Cooperative Agreement NA09OAR4320129, PO EA133F09SE4792, the M.S. Worthington Foundation, the North Pond Foundation, Sloan and Hardwick Simmons.
    Description: 2014-05-21
    Keywords: Disentanglement ; Dtag ; Drag ; Energetics ; Entanglement ; Sedation ; Right whale ; Eubalaena glacialis
    Repository Name: Woods Hole Open Access Server
    Type: Preprint
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  • 3
    facet.materialart.
    Unknown
    The use of diagnostic imaging for identifying abnormal gas accumulations in cetaceans and pinnipeds (2014)
    Frontiers Media
    Details
    Publication Date: 2022-05-25
    Description: © The Author(s), 2012. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Frontiers in Physiology 3 (2012): 181, doi:10.3389/fphys.2012.00181.
    Description: Recent dogma suggested that marine mammals are not at risk of decompression sickness due to a number of evolutionary adaptations. Several proposed adaptations exist. Lung compression and alveolar collapse that terminate gas-exchange before a depth is reached where supersaturation is significant and bradycardia with peripheral vasoconstriction affecting the distribution, and dynamics of blood and tissue nitrogen levels. Published accounts of gas and fat emboli and dysbaric osteonecrosis in marine mammals and theoretical modeling have challenged this view-point, suggesting that decompression-like symptoms may occur under certain circumstances, contrary to common belief. Diagnostic imaging modalities are invaluable tools for the non-invasive examination of animals for evidence of gas and have been used to demonstrate the presence of incidental decompression-related renal gas accumulations in some stranded cetaceans. Diagnostic imaging has also contributed to the recognition of clinically significant gas accumulations in live and dead cetaceans and pinnipeds. Understanding the appropriate application and limitations of the available imaging modalities is important for accurate interpretation of results. The presence of gas may be asymptomatic and must be interpreted cautiously alongside all other available data including clinical examination, clinical laboratory testing, gas analysis, necropsy examination, and histology results.
    Keywords: Computed tomography ; Ultrasound ; Magnetic resonance imaging ; Cetacean ; Decompression sickness ; Bends ; Pinniped ; Gas bubbles
    Repository Name: Woods Hole Open Access Server
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  • 4
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    Victims or vectors : a survey of marine vertebrate zoonoses from coastal waters of the Northwest Atlantic (2011)
    Inter-Research
    Details
    Publication Date: 2022-05-26
    Description: Author Posting. © Inter-Research, 2008. This article is posted here by permission of Inter-Research for personal use, not for redistribution. The definitive version was published in Diseases of Aquatic Organisms 81 (2008): 13-38, doi:10.3354/dao01936.
    Description: Surveillance of zoonotic pathogens in marine birds and mammals in the Northwest Atlantic revealed a diversity of zoonotic agents. We found amplicons to sequences from Brucella spp., Leptospira spp., Giardia spp. and Cryptosporidium spp. in both marine mammals and birds. Avian influenza was detected in a harp seal and a herring gull. Routine aerobic and anaerobic culture showed a broad range of bacteria resistant to multiple antibiotics. Of 1460 isolates, 797 were tested for resistance, and 468 were resistant to one or more anti-microbials. 73% (341/468) were resistant to 1–4 drugs and 27% (128/468) resistant to 5–13 drugs. The high prevalence of resistance suggests that many of these isolates could have been acquired from medical and agricultural sources and inter-microbial gene transfer. Combining birds and mammals, 45% (63/141) of stranded and 8% (2/26) of by-caught animals in this study exhibited histopathological and/or gross pathological findings associated with the presence of these pathogens. Our findings indicate that marine mammals and birds in the Northwest Atlantic are reservoirs for potentially zoonotic pathogens, which they may transmit to beachgoers, fishermen and wildlife health personnel. Conversely, zoonotic pathogens found in marine vertebrates may have been acquired via contamination of coastal waters by sewage, run-off and agricultural and medical waste. In either case these animals are not limited by political boundaries and are therefore important indicators of regional and global ocean health.
    Description: This paper is a result of research funded by the National Oceanic and Atmospheric Administration (NOAA) Coastal Ocean Program under award NA05NOS4781247, the NOAA John H. Prescott Program NA05NMF4391165 and NAO6NMF4390130, and the International Fund for Animal Welfare to the Woods Hole Oceanographic Institution. Support was also provided by awards NSF OCE-0430724 and NIEHS P50ES012742 to the Woods Hole Center for Ocean and Human Health.
    Keywords: Zoonosis ; Vertebrate ; Northwest Atlantic ; Pinniped ; Cetacean ; Bird
    Repository Name: Woods Hole Open Access Server
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  • 5
    facet.materialart.
    Unknown
    Bowhead whales, and not right whales, were the primary target of 16th- to 17th-century Basque whalers in the western North Atlantic (2012)
    Arctic Institute of North America
    Details
    Publication Date: 2022-05-26
    Description: Author Posting. © Arctic Institute of North America, 2008. This article is posted here by permission of Arctic Institute of North America for personal use, not for redistribution. The definitive version was published in Arctic 61 (2008): 61-75.
    Description: During the 16th and 17th centuries, Basque whalers travelled annually to the Strait of Belle Isle and Gulf of St. Lawrence to hunt whales. The hunting that occurred during this period is of primary significance for the North Atlantic right whale, Eubalaena glacialis (Müller, 1776), because it has been interpreted as the largest human-induced reduction of the western North Atlantic population, with ~12250–21 000 whales killed. It has been frequently reported that the Basques targeted two species in this region: the North Atlantic right whale and the bowhead whale, Balaena mysticetus L., 1758. To evaluate this hypothesis and the relative impact of this period of whaling on both species, we collected samples from 364 whale bones during a comprehensive search of Basque whaling ports from the 16th to the 17th century in the Strait of Belle Isle and Gulf of St. Lawrence. Bones were found and sampled at 10 of the 20 sites investigated. DNA was extracted from a subset (n = 218) of these samples. Analysis of the mitochondrial cytochrome b region identified five whale species. The identification of only a single right whale bone and 203 bowhead whale bones from at least 72 individuals indicates that the bowhead whale was likely the principal target of the hunt. These results imply that this whaling had a much greater impact (in terms of numbers of whales removed) on the bowhead whale population than on the western North Atlantic right whale population.
    Description: Financial support for this work was provided by the Canadian Whale Institute, the Northern Scientific Training Program (NSTP), the Department of Fisheries and Oceans Science Subvention program, the Ocean Life Institute (Woods Hole Oceanographic Institution), and the Natural Sciences and Engineering Research Council of Canada (NSERC).
    Keywords: Balaena mysticetus ; Eubalaena glacialis ; Whaling ; Basque ; Little Ice Age ; Historical population size ; DNA ; Bone ; Cytochrome b
    Repository Name: Woods Hole Open Access Server
    Type: Article
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