[en] Bioindicators or health effect indicators can be a valuable reconnaissance tool for addressing concerns on the part of the fishing industry and public interests regarding any potential impacts of pollutants on fish stocks. American plaice (Hippoglossoides platessoides) was initially chosen by the oil industry as an indicator species for Environmental Effects Monitoring (EEM) programs in the Grand Banks of Newfoundland because it is an important commercial flatfish. This presentation reported on fish health studies carried out at the Terra Nova development site before and after release of produced waters, which began in 2003. These studies represented 1 component of the overall Terra Nova EEM program. Fish were collected near the development area and in a reference area 20 km away. A broad range of health effect indicators were studied, including fish condition, visible skin and organ lesions, levels of mixed-function oxygenase (MFO) enzymes, haematology and an array of 19 histopathological indices in liver and gills. These indicators have been widely used in laboratory and field investigations with various fish species. A slight elevation of MFO enzyme activity was observed in fish from the development area in 2002, before release of produced water. In 2006, other indices were similar between the development and reference area. It was concluded that the overall results do not indicate any project effects.
Source
Liber, K.; Janz, D.M. (Saskatchewan Univ., Saskatoon, SK (Canada). Toxicology Centre); Burridge, L.E. (Fisheries and Oceans Canada, St. Andrews, NB (Canada)) (eds.); Fisheries and Oceans Canada, St. Andrews, NB (Canada). Biological Station; 188 p; 2009; p. 18-19; The 35. annual aquatic toxicity workshop; Saskatoon, SK (Canada); 5-8 Oct 2008; ISSN 0706-6457; 
; Available from Aquatic Toxicity Workshop website at http://www.atw.ca/site_pages/Past Proceedings/Proceedings2008.pdf
; Available from Aquatic Toxicity Workshop website at http://www.atw.ca/site_pages/Past Proceedings/Proceedings2008.pdf
[en] American plaice are used as an indicator species for environmental effects monitoring (EEM) programs in the Grand Banks area of Newfoundland. This study reported on fish health studies conducted between 2000 to 2006 at the Terra Nova oil development site before and after the release of produced waters. A total of 500 fishes were studied for a 5-year period in order to evaluate health effect indicators including fish condition; visible skin and organ lesions; levels of mixed-function-oxygenase (MFO) enzymes; haematology; and various histopathological indices in the liver and gills. The study demonstrated slight elevations of MFO enzyme activity in fish from the development site in 2002, before the release of produced water. On the basis of the various studied indicators, results suggest that the project is not having a significant impact on the health of American plaice.
Source
Martel, L.; Triffault-Bouchet, G. (Centre d'expertise en analyse environnementale du Quebec, Quebec, PQ (Canada)); Fournier, M. (Inst. national de la recherche scientifique, Laval, PQ (Canada). Inst. Armand Frappier); Berryman, D.; Guay, I. (Ministere du Developpement durable, de l'Environnement et des Parcs, Quebec, PQ (Canada)); Campbell, P.G.C. (Quebec Univ., Quebec, PQ (Canada). Institut National de la Recherche Scientifique-Eau, Terre et Environnement); Lebeuf, M.; Couillard, C. (Fisheries and Oceans Canada, Mont-Joli, PQ (Canada). Inst. Maurice-Lamontagne); Parent, L. (Quebec Univ., Montreal, PQ (Canada)); Pellerin, J. (Quebec Univ., Rimouski, PQ (Canada). Institut des Sciences de la Mer de Rimouski); Benoit, P. (Ministere du Developpement durable, de l'Environnement et des Parcs du Quebec, Longueil, PQ (Canada)); Lacroix, E. (Environment Canada, Montreal, PQ (Canada)); Burridge, L.E. (Fisheries and Oceans Canada, St. Andrews, NB (Canada)) (eds.); Fisheries and Oceans Canada, St. Andrews, NB (Canada). Biological Station. Funding organisation: Ministere du Developpement durable, de l'Environnement et des Parcs, Quebec, PQ (Canada); Environment Canada, Gatineau, PQ (Canada); Quebec Univ., Rimouski, PQ (Canada). Centre interinstitutionnel de recherche en ecotoxicologie; Hydro-Quebec, Montreal, PQ (Canada); ExxonMobil, St. John's, NL (Canada); Rio Tinto, Canadian Exploration Ltd., Toronto, ON (Canada); Alcan International Ltd., Montreal, PQ (Canada); Vale Inco Ltd., Sudbury, ON (Canada); Quebec Univ., Montreal, PQ (Canada). Centre TOXEN; Institut national de sante publique du Quebec, Montreal, PQ (Canada); Degremont, Dorval, PQ (Canada); Paine, Ledge and Associates, North Vancouver, BC (Canada); Quebec Univ., Quebec, PQ (Canada). Institut National de la Recherche Scientifique-Eau, Terre et Environnement; Intrinsik, Ottawa, ON (Canada) (and others); 200 p; 2010; p. 132; 36. annual aquatic toxicity workshop; La Malbaie, PQ (Canada); 27-30 Sep 2009; ISSN 0706-6457; ; Available from the St. Andrews Biological Station, Fisheries and Oceans Canada, 531 Brandy Cove Road, St. Andrews, New Brunswick, E58 2L9
; Available from the St. Andrews Biological Station, Fisheries and Oceans Canada, 531 Brandy Cove Road, St. Andrews, New Brunswick, E58 2L9