antibodies to brucella in marine mammals around the coast of england and wales.following the isolation of previously unrecognised species of brucella from stranded seals and cetaceans in scotland and northern england, a serological survey was carried out to investigate the range of marine mammal species which may have been exposed to brucella species around the coasts of england and wales, the prevalence of infection and the temporal and geographical distribution of seropositive animals. serum collected from 153 stranded marine mammals from the coasts of england and wales ...19979416675
occurrence of a monophasic strain of salmonella group b isolated from cetaceans in england and wales between 1990 and 2002.between september 1990 and december 2002, 511 cetacean carcasses stranded or caught in commercial fisheries in england and wales were examined post mortem. salmonella group b was isolated from 60 of 279 (21.51%) harbour porpoises (phocoena phocoena), predominantly from lung tissue. forty-three of the salmonella group b isolates were subsequently serotyped and all found to have the antigenic structure o4,12:a:-. the annual proportion of harbour porpoises testing positive for salmonella o4,12:a:- ...200818492065
entanglement in fishing gear and other causes of death in cetaceans stranded on the coasts of england and wales.between august 1990 and september 1995 the carcases of 422 cetaceans of 12 species that had died around the coasts of england and wales were examined. there were 234 harbour porpoises (phocoena phocoena), 138 common dolphins (delphinus delphis), and 50 individuals of 10 other species of dolphins and whales. the cause of death was diagnosed in the harbour porpoises and common dolphins was entanglement in fishing gear (bycatch). of the cases in which the cause of death was established, 66 (38 per ...19979265709
exposure to heavy metals and infectious disease mortality in harbour porpoises from england and wales.we investigate whether long-term exposure to heavy metals, including immunosuppressive metals like mercury (hg), is associated with infectious disease in a wild cetacean. post-mortem investigations on 86 harbour porpoises, phocoena phocoena, found dead along the coasts of england and wales revealed that 49 of the porpoises were healthy when they died as a consequence of physical trauma (most frequently entrapment in fishing gear). in contrast, 37 porpoises died of infectious diseases caused by p ...200111202652
investigating potential associations between chronic exposure to polychlorinated biphenyls and infectious disease mortality in harbour porpoises from england and wales.bioaccumulation of immunosuppressive organochlorines like polychlorinated biphenyls (pcbs) may pose a threat to the health and viability of cetacean populations. to investigate possible associations between chronic exposure to pcbs and infectious disease mortality in harbour porpoises phocoena phocoena in uk waters, blubber concentrations of 25 individual chlorobiphenyl (cb) congeners in 34 healthy harbour porpoises that died due to physical trauma (mainly by-catch) were compared with cb concent ...199910635603
the influence of topographic and dynamic cyclic variables on the distribution of small cetaceans in a shallow coastal system.the influence of topographic and temporal variables on cetacean distribution at a fine-scale is still poorly understood. to study the spatial and temporal distribution of harbour porpoise phocoena phocoena and the poorly known risso's dolphin grampus griseus we carried out land-based observations from bardsey island (wales, uk) in summer (2001-2007). using kernel analysis and generalized additive models it was shown that porpoises and risso's appeared to be linked to topographic and dynamic cycl ...201424466031
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