<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>10</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Tetreault, G. R.</style></author><author><style face="normal" font="default" size="100%">McMaster, M. E.</style></author><author><style face="normal" font="default" size="100%">Dixon, D. G.</style></author><author><style face="normal" font="default" size="100%">Parrott, J. L.</style></author><author><style face="normal" font="default" size="100%">Tetreault, G. R.</style></author></authors><tertiary-authors><author><style face="normal" font="default" size="100%">Eichkoff, C.V.</style></author><author><style face="normal" font="default" size="100%">van Aggelen, G.C.</style></author><author><style face="normal" font="default" size="100%">Nimi, A.J.</style></author></tertiary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Physiological and biochemical responses of small fish exposed to Athabasca oil sands sediment</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Athabasca River</style></keyword><keyword><style  face="normal" font="default" size="100%">federal government</style></keyword><keyword><style  face="normal" font="default" size="100%">fish</style></keyword><keyword><style  face="normal" font="default" size="100%">laboratory</style></keyword><keyword><style  face="normal" font="default" size="100%">sediment</style></keyword><keyword><style  face="normal" font="default" size="100%">toxicity</style></keyword><keyword><style  face="normal" font="default" size="100%">tributaries</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2002</style></year><pub-dates><date><style  face="normal" font="default" size="100%">10/2002</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">Canadian Technical Report of Fisheries and Aquatic Sciences </style></publisher><pages><style face="normal" font="default" size="100%">1 page </style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%"> A study was conducted to determine the influence of naturally occurring oil sands related compounds on the reproductive function and hepatic responses of fish. Wild fish, both exposed and unexposed to the compounds in question, were collected along with sediments for laboratory testing. The study showed that in vitro gonadal incubation levels of steroid production were lower at the tributary sites within the oil sands deposits. One indicator of exposure to oil sands related compounds (hepatic 7-ethoxyresorufin-O-deethylase activity) was shown to be 5 times higher at the same sites. In addition, slimy sculpin were exposed to sediment samples from the Steepbank River site for 4 to 8 days to evaluate the absorption of the indicator. The indicator in exposed fish was found to be comparable to that measured in fish native to the oil sands area. The study was not capable of predicting an altered ability of gonadal tissue of exposed fish to produce steroid hormones in vitro. It was concluded that future development could compromise the reproductive health of fish in the area</style></abstract><notes><style face="normal" font="default" size="100%">IN: Proceedings of the 29th Annual Aquatic Toxicity Workshop October 21-23, 2002. Whistler, British Columbia. Eichkoff C.V. G.C. van Aggelen and A.J. Nimi (Eds.). Canadian Technical Report of Fisheries and Aquatic Sciences No. 2438. pp. 50.</style></notes><custom2><style face="normal" font="default" size="100%">Athabasca River </style></custom2><custom4><style face="normal" font="default" size="100%">OSEMB</style></custom4></record></records></xml>