Search Results - "Jeffries, Steven J"
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Long distance movements and disjunct spatial use of harbor seals (Phoca vitulina) in the inland waters of the Pacific Northwest
Published in PloS one (18-06-2012)“…Worldwide, adult harbor seals (Phoca vitulina) typically limit their movements and activity to <50 km from their primary haul-out site. As a result, the…”
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Haul-out behavior of harbor seals (Phoca vitulina) in Hood Canal, Washington
Published in PloS one (18-06-2012)“…The goal of this study was to model haul-out behavior of harbor seals (Phoca vitulina) in the Hood Canal region of Washington State with respect to changes in…”
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Cetacean Strandings in the US Pacific Northwest 2000–2019 Reveal Potential Linkages to Oceanographic Variability
Published in Frontiers in Marine Science (02-03-2022)“…Studying patterns in marine mammal stranding cases can provide insight into changes in population health, abundance, and distribution. Cetaceans along the…”
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Detection of Pathogenic Leptospira Bacteria in Pinniped Populations via PCR and Identification of a Source of Transmission for Zoonotic Leptospirosis in the Marine Environment
Published in Journal of Clinical Microbiology (01-05-2008)“…Leptospirosis, caused by the spirochete Leptospira, is a geographically widespread disease that affects a broad range of mammals, including marine mammals…”
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Chemical and biological pollution contribute to the immunological profiles of free-ranging harbor seals
Published in Environmental toxicology and chemistry (01-12-2006)“…Polychlorinated biphenyls and other persistent organic pollutants have been associated with immunotoxicity and outbreaks of (infectious) disease in marine…”
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Fish consumption by harbor seals (Phoca vitulina) in the San Juan Islands, Washington
Published in Fishery bulletin (Washington, D.C.) (01-01-2013)“…The harbor seal (Phoca vitulina) is a large-bodied and abundant predator in the Salish Sea ecosystem, and its population has recovered since the 1970s after…”
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Competing tradeoffs between increasing marine mammal predation and fisheries harvest of Chinook salmon
Published in Scientific reports (20-11-2017)“…Many marine mammal predators, particularly pinnipeds, have increased in abundance in recent decades, generating new challenges for balancing human uses with…”
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Status, trends, and equilibrium abundance estimates of the translocated sea otter population in Washington State
Published in The Journal of wildlife management (01-05-2022)“…Sea otters (Enhydra lutris kenyoni) historically occurred in Washington State, USA, until their local extinction in the early 1900s as a result of the maritime…”
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Harbor seal diet in northern Puget Sound: implications for the recovery of depressed fish stocks
Published in Marine ecology. Progress series (Halstenbek) (19-09-2012)“…Recovery of severely declining resource stocks often leads to enforced quotas or reduced human access to those resources. Predators, however, do not recognize…”
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Congenital Diseases in Harbor Seals (Phoca vitulina richardsii) from the Salish Sea
Published in Journal of wildlife diseases (05-07-2021)“…Postmortem data for harbor seals (Phoca vitulina richardsii) in the Salish Sea were analyzed for epidemiologic trends in congenital diseases. Cleft palate,…”
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Influence of occupation history and habitat on Washington sea otter diet
Published in Marine mammal science (01-10-2019)“…Habitat characteristics are primary determinants of nearshore marine communities. However, biological drivers like predation can also be important for…”
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BRUCELLA PINNIPEDIALIS INFECTIONS IN PACIFIC HARBOR SEALS (PHOCA VITULINA RICHARDSI) FROM WASHINGTON STATE, USA
Published in Journal of wildlife diseases (01-10-2013)“…In 1994 a novel Brucella sp., later named B. pinnipedialis, was identified in stranded harbor seals (Phoca vitulina). This Brucella sp. is a potential zoonotic…”
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New insights into the diets of harbor seals (Phoca vitulina) in the Salish Sea revealed by analysis of fatty acid signatures
Published in Fishery bulletin (Washington, D.C.) (01-01-2013)“…Harbor seals (Phoca vitulina) are an abundant predator along the west coast of North America, and there is considerable interest in their diet composition,…”
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Application of real-time quantitative PCR assays for detecting marine Brucella spp. in fish
Published in Journal of veterinary diagnostic investigation (01-01-2018)“…Brucella ceti and Brucella pinnipedialis have been documented as occurring in marine mammals, and B. ceti has been identified in 3 naturally acquired human…”
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Harbor seal foraging response to a seasonal resource pulse, spawning Pacific herring
Published in Marine ecology. Progress series (Halstenbek) (15-11-2011)“…Evidence suggests that Pacific harbor sealsPhoca vitulinaare likely to alter their foraging behavior in response to seasonal prey pulses. We hypothesized that…”
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PBDE flame retardants and PCBs in migrating Steller sea lions (Eumetopias jubatus) in the Strait of Georgia, British Columbia, Canada
Published in Chemosphere (Oxford) (01-08-2012)“…► PCBs and PBDEs were found at moderately high levels in Steller sea lions. ► Biotransformation was only evident for a limited number of PCB and PBDE…”
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Risk-based analysis of polychlorinated biphenyl toxicity in harbor seals
Published in Integrated environmental assessment and management (01-10-2010)“…Persistent organic pollutants (POPs) have been associated with adverse health effects in marine mammals. However, the complex mixtures to which free‐ranging…”
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Increased harbor porpoise mortality in the Pacific Northwest, USA: understanding when higher levels may be normal
Published in Diseases of aquatic organisms (23-07-2015)“…In 2006, a marked increase in harbor porpoise Phocoena phocoena strandings were reported in the Pacific Northwest of the USA, resulting in the declaration of…”
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Postrelease movement of rehabilitated harbor seal (Phoca vitulina richardii) pups compared with cohort-matched wild seal pups
Published in Marine mammal science (01-07-2013)“…Harbor seal (Phoca vitulina richardii) populations in the inland waters of Washington and British Columbia are at or near carrying capacity. Stranded pups…”
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Coxiella burnetii Infection of Marine Mammals in the Pacific Northwest, 1997–2010
Published in Journal of wildlife diseases (01-01-2012)“…Q fever is a zoonotic disease caused by the bacterium Coxiella burnetii. Humans are commonly exposed via inhalation of aerosolized bacteria derived from the…”
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