References of "Jauniaux, Thierry"
     in
Bookmark and Share    
Full Text
See detailWATER-BORNE EMERGING ZOONOSE? CASE REPORT ON ERYSIPELAS (ERYSIPELOTHRIX RHUSIOPATHIAE) IN HARBOUR PORPOISES (PHOCOENA PHOCOENA) AND HARBOUR SEAL (PHOCA VITULINA).
Boseret, Géraldine ULg; Saegerman, Claude ULg; Mainil, Jacques ULg et al

Poster (2012, March 26)

An adult female harbour porpoise (Phocoena phocoena) and a juvenile male harbour seal (Phoca vitulina) have been found stranded dead on the Belgian coast in late 2001. As the two bodies were in good ... [more ▼]

An adult female harbour porpoise (Phocoena phocoena) and a juvenile male harbour seal (Phoca vitulina) have been found stranded dead on the Belgian coast in late 2001. As the two bodies were in good condition (CC = 2), necropsy and bacteriological analyses were performed as well as other postmortem investigations. Blood heart and organs (liver, digestive and respiratory tract, lungs, spleen, brain, kidneys) samples have been collected and analyzed. The porpoise showed evidence of septicaemia, and the seal presented lesions of acute enteritis. Pure and abundant growth of a small rod-shaped, Gram-labile bacterium was obtained aerobically and anaerobically on Columbia blood agar from heart blood, mouth, pharynx, lungs, intestine and anus of the porpoise, and from intestine, pharynx, mouth, nose and anus of the seal. The colonies were surrounded by a narrow zone of alpha-hemolysis. Catalase- and peroxydase-tests gave negative results. Rapid ID 32 Strepto (Biomérieux, France) sugar tests identified this isolate as Erysipelothrix rhusiopathiae. E. rhusiopathiae could be therefore considered as the cause of septicaemia on the porpoise as it was present in heart blood and internal organs, and could be associated primary or secondary with the enteritis reported on the seal as the bacterium was isolated in pure culture in the digestive tract. E. rhusiopathiae infections have been reported in captive dolphins and sea lions. This zoonotic pathogen is also involved in human local infections, like the “seal finger”, resulting from captive pinnipeds bites. However, it has not been so far described as systemic pathogens of wild cetaceans and pinnipeds. E. rhusiopathiae could be therefore considered as a potentially emergent pathogen which could have important repercussions on human health, particularly veterinarians, marine mammals rescue teams and zoos. [less ▲]

Detailed reference viewed: 49 (2 ULg)
Full Text
Peer Reviewed
See detailBrucellosis in marine mammals stranded on the Belgian and northern France coast
Jauniaux, Thierry ULg; Brenez, C.; Fretin, D. et al

Conference (2012)

Detailed reference viewed: 20 (0 ULg)
Full Text
See detailBrucella ceti infection in a harbor porpoise (Phocoena phocoena)
Jauniaux, Thierry ULg; Brenez, C.; Fretin, D. et al

Scientific conference (2012)

Detailed reference viewed: 18 (1 ULg)
Full Text
Peer Reviewed
See detailBrucella ceti and Brucella pinnipedialis infections in marine mammals
Godfroid, J.; Nymo, I.; Tryland, M. et al

in Aguirre, A.; Ostfeld, R.; Daszak, P. (Eds.) New directions in conservation medicine applied cases of ecological health (2012)

Detailed reference viewed: 42 (1 ULg)
Full Text
Peer Reviewed
See detailThe grey seal (Halichoerus grypus) as a predator of harbour porpoises (Phocoena phocoena)?
Haelters, Jan; Kerckhof, Francis; Jauniaux, Thierry ULg et al

in Aquatic Mammals (2012), 38

Detailed reference viewed: 44 (1 ULg)
Peer Reviewed
See detailThe harbor seal and the harbor porpoise from the North Sea: review of their ecotoxicological status based on stranded and free-ranging individuals and potential threaths to the population
Das, Krishna ULg; Weijs, Liesbeth; Habran, Sarah ULg et al

Conference (2011, May)

The harbor seal (Phoca vitulina) and the harbor porpoise (Phocoena phocoena) from the North Sea have experienced major fluctuations these last decades due to habitat loss, prey fluctuation and pollution ... [more ▼]

The harbor seal (Phoca vitulina) and the harbor porpoise (Phocoena phocoena) from the North Sea have experienced major fluctuations these last decades due to habitat loss, prey fluctuation and pollution of the marine environment. Recently, development of monitoring programs and non-invasive sampling techniques, including seal catches in Germany allowed blood sampling together with measurements of blubber thickness, body mass, sex and body length. This approach is complementary to the study of stranded and by-caught individuals sampled during necropsies. Essential (Se, Zn, Cu, Fe) and non-essential elements (T-Hg, MeHg, Cd, Pb), perfluorinated organochemicals (PFCs) polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) were measured in blubber and in blood (for selected compounds) of stranded, by-caught and free-ranging individuals from Belgian and German coasts. In contrast to Cd and Pb, hepatic T-Hg can reach concentrations as high as 2.1 μg.g-1 dry weight but depended on several factors including position in the trophic chain (inferred from δ13C and δ15N values), age group and the body mass. This level has been shown to generate in vitro toxicity on harbor seal lymphocytes. Organic compound analysis (PFCs, PCBs, PBDEs) revealed widespread dispersion of contaminants in the marine environment with higher concentrations in seals compared to porpoises in agreement with the higher trophic position of the harbor seal. However, metabolization of these compounds differed between the two species, as revealed by the higher contribution of the persistent BDE-47 and lower chlorinated and non-persistent congeners (e.g. CB 52, CB95) in tissues of harbor porpoises. T-Hg, PFCs, PCBs and PBDEs were detected in calves confirming maternal transfer to offspring. These pollutants are strongly suspected to affect the immune and endocrine systems as well as vitamin A metabolism and this raises concern about exposure-related health effects, especially in younger individuals. [less ▲]

Detailed reference viewed: 133 (16 ULg)
Full Text
See detailNew evidence of a relationship between PCB and the cause of death of North Sea harbour porpoises
Jauniaux, Thierry ULg; Das, Krishna ULg; Haelters, Jan et al

in proceeding of the annual conference (2011)

Detailed reference viewed: 38 (5 ULg)
Full Text
See detailProceedings of the 1st Scientific Meeting of the Faculty of Veterinary Medicine (Liège – Belgium)
Cabaraux, Jean-François ULg; Delguste, Catherine ULg; Frippiat, Thibault ULg et al

Book published by Presses de la Faculté de Médecine vétérinaire de l’Université de Liège (2011)

Detailed reference viewed: 86 (55 ULg)
Full Text
Peer Reviewed
See detailCytochrome P450 1A1 expression in cetacean skin biopsies from the Indian Ocean
Jauniaux, Thierry ULg; Farnir, Frédéric ULg; Fontaine, Michael et al

in Marine Pollution Bulletin (2011)

Detailed reference viewed: 32 (9 ULg)
Full Text
Peer Reviewed
See detailPigeon circovirus: baculovirus expression of the capsid protein gene, specific antibody and viral load measured by real time polymerase chain reaction
Duchatel, Jean-Pierre ULg; Todd, D.; Smyth, J. et al

in Israel Journal of Veterinary Medicine (2011), 66(1), 26-31

Detailed reference viewed: 73 (2 ULg)
Full Text
See detailThe Belgian Marine Mammals Network
Jauniaux, Thierry ULg; De Cauwer, Karine; Jacques, Thierry et al

in Interest and feasibility of a web-accessed database for marine mammals strandings and necropsy data in the ASCOBANS région, ECS workshopy (2011)

Detailed reference viewed: 49 (4 ULg)
Full Text
Peer Reviewed
See detailBrucella ceti infection in a harbor porpoise (Phocoena phocoena)
Jauniaux, Thierry ULg; Brenez, Cecile; Fretin, David et al

in Emerging Infectious Diseases (2010), 139(11), 254-7

Detailed reference viewed: 42 (17 ULg)
Full Text
Peer Reviewed
See detailAssessing the Effect of Persistent Organic Pollutants on Reproductive Activity in Common Dolphins and Harbour Porpoises
Murphy, S.; Pierce, G.; Law, R. et al

in Journal of Northwest Atlantic Fishery Science (2010), 42

Detailed reference viewed: 24 (9 ULg)
Full Text
Peer Reviewed
See detailAspects of population biology: Epizootics in harbour seals (Phoca vitulina): clinical aspects
Siebert, Ursula; Gulland, Frances; Harder, Timm et al

in Desportes, G.; Bjorge, A.; Rosing-Avid, A. (Eds.) et al Harbour seals in the North Atlantic and the Baltic (2010)

Detailed reference viewed: 19 (5 ULg)
Full Text
Peer Reviewed
See detailGenetic and historic evidence for climate-driven population fragmentation in a top cetacean predator: the harbour porpoises in European water.
Fontaine, Michaël C. ULg; Tolley, Krystal A.; Michaux, Johan ULg et al

in Proceedings of the Royal Society B : Biological Sciences (2010), 277(1695), 2829-37

Recent climate change has triggered profound reorganization in northeast Atlantic ecosystems, with substantial impact on the distribution of marine assemblages from plankton to fishes. However, assessing ... [more ▼]

Recent climate change has triggered profound reorganization in northeast Atlantic ecosystems, with substantial impact on the distribution of marine assemblages from plankton to fishes. However, assessing the repercussions on apex marine predators remains a challenging issue, especially for pelagic species. In this study, we use Bayesian coalescent modelling of microsatellite variation to track the population demographic history of one of the smallest temperate cetaceans, the harbour porpoise (Phocoena phocoena) in European waters. Combining genetic inferences with palaeo-oceanographic and historical records provides strong evidence that populations of harbour porpoises have responded markedly to the recent climate-driven reorganization in the eastern North Atlantic food web. This response includes the isolation of porpoises in Iberian waters from those further north only approximately 300 years ago with a predominant northward migration, contemporaneous with the warming trend underway since the 'Little Ice Age' period and with the ongoing retreat of cold-water fishes from the Bay of Biscay. The extinction or exodus of harbour porpoises from the Mediterranean Sea (leaving an isolated relict population in the Black Sea) has lacked a coherent explanation. The present results suggest that the fragmentation of harbour distribution range in the Mediterranean Sea was triggered during the warm 'Mid-Holocene Optimum' period (approx. 5000 years ago), by the end of the post-glacial nutrient-rich 'Sapropel' conditions that prevailed before that time. [less ▲]

Detailed reference viewed: 49 (16 ULg)
See detailPotential research on marine mammals
Jauniaux, Thierry ULg; Coignoul, Freddy ULg

in Animal inside and outside the laboratory (2010)

Detailed reference viewed: 22 (2 ULg)
See detailBrucella ceti infection in a harbor porpoise (Phocoena phocoena)
Jauniaux, Thierry ULg; Brenez, C.; Fretin, D. et al

in 9th Conference of European Wildlife Diseases Association (2010)

Detailed reference viewed: 14 (6 ULg)