Occurrence of Slimy Sculpin (Cottus cognatus) on southern Victoria Island, Nunavut

Polar Biology ◽  
2022 ◽  
Author(s):  
Michael Power ◽  
Graham Power ◽  
Guillaume Grosbois ◽  
Milla Rautio
Keyword(s):  
Cottus Cognatus ◽  
Slimy Sculpin ◽  
Victoria Island

Site fidelity of slimy sculpin (Cottus cognatus): insights from stable carbon and nitrogen analysis

2004 ◽  
Vol 61 (9) ◽  
pp. 1717-1722 ◽  
Author(s):  
M A Gray ◽  
R A Cunjak ◽  
K R Munkittrick
Keyword(s):  
Environmental Impacts ◽  
Site Fidelity ◽  
Fish Muscle ◽  
Sentinel Species ◽  
Agricultural Activity ◽  
Local Conditions ◽  
Cottus Cognatus ◽  
Site Specific ◽  
Isotopic Signatures ◽  
Slimy Sculpin

Concerns regarding sentinel species for assessing environmental impacts include residency, abundance, and suitability for measuring responses, if effects are to be attributable to local conditions. Stable isotope analysis was used as a tool to investigate site fidelity of slimy sculpin (Cottus cognatus) to establish residency and exposure for the sculpin. We predicted that sculpin collected from sites adjacent to agricultural activity would show higher δ15N values than those collected from sites in forested areas because of isotopic enrichment by fertilizers in the former. The predominant use of chemical fertilizer applications in the region, however, resulted in no specific enrichment of 15N in sculpin collected in the agricultural region. However, there was an incremental enrichment in the fish muscle tissue of approximately 5‰ in δ13C values in a downstream direction, irrespective of surrounding land use. As a result, the dual-isotope comparison was successful at demonstrating site-specific isotopic signatures across sites for 30 km of the river system. The site-specific signatures suggest that slimy sculpin are not moving considerable distances among sites and are incorporating their isotopic signatures over a narrow spatial scale. The results support the use of the slimy sculpin as a sentinel species for investigating site-specific environmental impacts.

A comparison of slimy sculpin (Cottus cognatus) populations in arctic lakes with and without piscivorous predators

Toolik Lake ◽  
1992 ◽  
pp. 189-201 ◽  
Author(s):  
Kristi L. Hanson ◽  
Anne E. Hershey ◽  
Michael E. McDonald
Keyword(s):  
Arctic Lakes ◽  
Cottus Cognatus ◽  
Slimy Sculpin

IMPACTS OF NONPOINT INPUTS FROM POTATO FARMING ON POPULATIONS OF SLIMY SCULPIN (COTTUS COGNATUS)

2005 ◽  
Vol 24 (9) ◽  
pp. 2291 ◽  
Author(s):  
Michelle A. Gray ◽  
R. Allen Curry ◽  
Kelly R. Munkittrick
Keyword(s):  
Cottus Cognatus ◽  
Slimy Sculpin

Fecundity of the Slimy Sculpin, Cottus cognatus, in Lake Michigan

Copeia ◽  
1976 ◽  
Vol 1976 (4) ◽  
pp. 802 ◽  
Author(s):  
Jeffrey W. Foltz
Keyword(s):  
Lake Michigan ◽  
Cottus Cognatus ◽  
Slimy Sculpin

Physiological and Biochemical Responses of Ontario Slimy Sculpin (Cottus cognatus) to Sediment from the Athabasca Oil Sands Area

2003 ◽  
Vol 38 (2) ◽  
pp. 361-377 ◽  
Author(s):  
Gerald R. Tetreault ◽  
Mark E. McMaster ◽  
D. George Dixon ◽  
Joanne L. Parrott
Keyword(s):  
Oil Sands ◽  
Production Capacity ◽  
Erod Activity ◽  
Oil Sand ◽  
Athabasca Oil Sands ◽  
Cottus Cognatus ◽  
Exposed Fish ◽  
Biochemical Responses ◽  
Slimy Sculpin

Abstract This study was conducted to evaluate whether a laboratory exposure of reference fish to oil sands sediment could produce biochemical responses (increases 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 outside 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 mining 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 Identification Evaluation (TIE).

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