Physiological and biochemical responses of Ontario slimy sculpin (Cottus cognatus) to sediment from the Athabasca Oil Sands area
This study was conducted to evaluate whether a laboratory exposure of refer-ence fish to oil sands sediment could produce biochemical responses (increas-es in 7-ethoxyresorufin-O-deethylase [EROD] activity and decreases in vitro steroid production capacity) similar to fish caught in the Athabasca Oi...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.615.7235 2023-05-15T15:56:51+02:00 Physiological and biochemical responses of Ontario slimy sculpin (Cottus cognatus) to sediment from the Athabasca Oil Sands area Gerald R. Tetreault Mark E. Mcmaster D. George Dixon Joanne L. Parrott The Pennsylvania State University CiteSeerX Archives 2003 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.615.7235 http://www.cawq.ca/journal/temp/article/87.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.615.7235 http://www.cawq.ca/journal/temp/article/87.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.cawq.ca/journal/temp/article/87.pdf Identification Evaluation (TIE text 2003 ftciteseerx 2016-01-08T14:44:04Z This study was conducted to evaluate whether a laboratory exposure of refer-ence fish to oil sands sediment could produce biochemical responses (increas-es in 7-ethoxyresorufin-O-deethylase [EROD] activity and decreases in vitro steroid production capacity) similar to fish caught in the Athabasca Oil Sands area. Sediment samples from the Steepbank River, Alberta, were collected out-side of the oil sands area at a reference site (S-Ref), within the oil sands areas where oil sand compounds leach naturally into the surface water (S-Nat), and within the natural-leach deposit areas, but also adjacent to anthropogenic min-ing activity (S-Dev). In the laboratory, an Ontario reference population of slimy sculpin (Cottus cognatus) were exposed to sediment concentrations of 10 or 20 g/L, for 4 and 8 d. A period of 4 d was sufficient to induce EROD activity in this species by these sediments. The EROD activity measured in exposed fish was comparable to that measured in fish native to the oil sands area. This study was not capable of predicting a reduced ability of gonadal tissue of exposed fish to produce steroid hormones in vitro, as was demonstrated in the wild fish assessment of 1999 and 2000. The short-term laboratory bioassay exposing slimy sculpin to sediment from the Athabasca Oil Sands area was not a suitable surrogate for field studies, however it could be an important tool in identifying MFO-inducing compounds in Athabasca Oil Sands sediment using a Toxicity Text Cottus cognatus Slimy sculpin Unknown Steepbank River ENVELOPE(-111.469,-111.469,57.017,57.017) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Identification Evaluation (TIE |
spellingShingle |
Identification Evaluation (TIE Gerald R. Tetreault Mark E. Mcmaster D. George Dixon Joanne L. Parrott Physiological and biochemical responses of Ontario slimy sculpin (Cottus cognatus) to sediment from the Athabasca Oil Sands area |
topic_facet |
Identification Evaluation (TIE |
description |
This study was conducted to evaluate whether a laboratory exposure of refer-ence fish to oil sands sediment could produce biochemical responses (increas-es in 7-ethoxyresorufin-O-deethylase [EROD] activity and decreases in vitro steroid production capacity) similar to fish caught in the Athabasca Oil Sands area. Sediment samples from the Steepbank River, Alberta, were collected out-side of the oil sands area at a reference site (S-Ref), within the oil sands areas where oil sand compounds leach naturally into the surface water (S-Nat), and within the natural-leach deposit areas, but also adjacent to anthropogenic min-ing activity (S-Dev). In the laboratory, an Ontario reference population of slimy sculpin (Cottus cognatus) were exposed to sediment concentrations of 10 or 20 g/L, for 4 and 8 d. A period of 4 d was sufficient to induce EROD activity in this species by these sediments. The EROD activity measured in exposed fish was comparable to that measured in fish native to the oil sands area. This study was not capable of predicting a reduced ability of gonadal tissue of exposed fish to produce steroid hormones in vitro, as was demonstrated in the wild fish assessment of 1999 and 2000. The short-term laboratory bioassay exposing slimy sculpin to sediment from the Athabasca Oil Sands area was not a suitable surrogate for field studies, however it could be an important tool in identifying MFO-inducing compounds in Athabasca Oil Sands sediment using a Toxicity |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Gerald R. Tetreault Mark E. Mcmaster D. George Dixon Joanne L. Parrott |
author_facet |
Gerald R. Tetreault Mark E. Mcmaster D. George Dixon Joanne L. Parrott |
author_sort |
Gerald R. Tetreault |
title |
Physiological and biochemical responses of Ontario slimy sculpin (Cottus cognatus) to sediment from the Athabasca Oil Sands area |
title_short |
Physiological and biochemical responses of Ontario slimy sculpin (Cottus cognatus) to sediment from the Athabasca Oil Sands area |
title_full |
Physiological and biochemical responses of Ontario slimy sculpin (Cottus cognatus) to sediment from the Athabasca Oil Sands area |
title_fullStr |
Physiological and biochemical responses of Ontario slimy sculpin (Cottus cognatus) to sediment from the Athabasca Oil Sands area |
title_full_unstemmed |
Physiological and biochemical responses of Ontario slimy sculpin (Cottus cognatus) to sediment from the Athabasca Oil Sands area |
title_sort |
physiological and biochemical responses of ontario slimy sculpin (cottus cognatus) to sediment from the athabasca oil sands area |
publishDate |
2003 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.615.7235 http://www.cawq.ca/journal/temp/article/87.pdf |
long_lat |
ENVELOPE(-111.469,-111.469,57.017,57.017) |
geographic |
Steepbank River |
geographic_facet |
Steepbank River |
genre |
Cottus cognatus Slimy sculpin |
genre_facet |
Cottus cognatus Slimy sculpin |
op_source |
http://www.cawq.ca/journal/temp/article/87.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.615.7235 http://www.cawq.ca/journal/temp/article/87.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766392494884388864 |