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Behavioural ecotoxicology, an “early warning” signal to assess environmental quality
- J. Hellou
- Environmental Science, Medicine
- Environmental science and pollution research…
- 8 July 2010
Recent research undertaken with mud snails, Ilyanassa obsoleta, and harbour sediments confirmed the usefulness of the escape behaviour as an assessment tool, and the limits of the state of knowledge regarding the fate of contaminants in species with the ability to metabolise contaminants are discussed. Expand
Up-regulation of hepatic ABCC2, ABCG2, CYP1A1 and GST in multixenobiotic-resistant killifish (Fundulus heteroclitus) from the Sydney Tar Ponds, Nova Scotia, Canada.
- S. Paetzold, N. W. Ross, R. C. Richards, Martha Jones, J. Hellou, S. Bard
- Biology, Medicine
- Marine environmental research
- 1 July 2009
It is suggested that liver up-regulation of phase I and II enzymes and complementary ABC transporters ABCC2 and ABCG2 may confer contaminant resistance to Tar Pond fish. Expand
Endocrine disruption and health effects of caged mussels, Elliptio complanata, placed downstream from a primary-treated municipal effluent plume for 1 year.
Results indicate that estrogenic chemicals are likely at play, and the increased dopamine and decreased serotonin ATP-dependent transport suggest that the municipal plume was serotonergic for mussels located at the downstream sites. Expand
Estrogenic compounds in seawater and sediment from Halifax Harbour, Nova Scotia, Canada.
- Brian J Robinson, J. Hui, E. C. Soo, J. Hellou
- Chemistry, Medicine
- Environmental toxicology and chemistry
Results indicate that these compounds readily associate with suspended particles rather than remaining in the soluble phase, with sorption directly related to sediment total organic content and following the order EE2 > E2 > BPA. Expand
Heavy metals and other elements in three tissues of cod, Gadus morhua from the Northwest Atlantic
Abstract Over twenty elements were analysed in the muscle, liver and ovaries of cod, (Gadus morhua) collected in Norwest Atlantic Fisheries Organization (NAFO) Divisions 2J and 3Ps off the coast of… Expand
Polycyclic and nitro musks in the environment: A comparison between Canadian and European aquatic biota
Nitro and polycyclic musks were determined for the first time in Canadian aquatic fauna such as lobster, winter flounder, American eel, lake trout, clams and mussels. Samples from densely populated… Expand
Stress on stress response of wild mussels, Mytilus edulis and Mytilus trossulus, as an indicator of ecosystem health.
The results indicate that the stress on stress response provides a simple and sensitive indicator of environmental health, which could be integrated with mussel watch studies. Expand
Concentrations of twenty-four elements in bluefin tuna, Thunnus thynnus from the Northwest Atlantic
Abstract Fourteen muscle samples of bluefin tuna, Thunnus thynnus , collected in the area of the Virgin Rocks, on the Grand Banks of Newfoundland, Canada were analyzed for total mercury (Hg) by cold… Expand
Polycyclic Aromatic Compounds
Presence and Biotransformation of three Heteroaromatic Compounds Compared to an Aromatic Hydrocarbon J. Hellou , J. Leonard , J. Meade , S. Sharpe , J. Banoub , S. Papiernik , L. Eglinton & J. Whelan… Expand
Glutathione, glutathione S-transferase, and glutathione conjugates, complementary markers of oxidative stress in aquatic biota
- J. Hellou, N. W. Ross, T. W. Moon
- Biology, Medicine
- Environmental Science and Pollution Research
- 25 April 2012
The antioxidant role of glutathione (GSH), accompanied by the formation of its disulfide dimer, GSSG, and metabolites in response to chemical stress, are highlighted in this review and the inclusion of GST within the suite of biomarkers used to assess the effects of xenobiotics is recommended. Expand