Survey of receiving-water environmental impacts associated with discharges from pulp mills: 4. Bioassay-derived 2,3,7,8-tetrachlorodibenzo-P-dioxin toxic equivalent concentration in white sucker (catostomus commersoni) in relation to biochemical indicators of impact

1994 ◽  
Vol 13 (7) ◽  
pp. 1117-1126
Author(s):  
Michael R. Van Den Heuvel ◽  
Mark R. Servos ◽  
D. George Dixon ◽  
Kelly R. Munkittrick ◽  
Glen J. Van Der Kraak ◽  
...  
Keyword(s):  
Environmental Impacts ◽  
White Sucker ◽  
Pulp Mills ◽  
Catostomus Commersoni ◽  
Biochemical Indicators ◽  
Toxic Equivalent ◽  
Equivalent Concentration ◽  
Tetrachlorodibenzo P Dioxin ◽  
Receiving Water

Hepatic 7-ethoxyresorufin-O-deethylase activity, plasma steroid hormone concentrations, and liver bioassay-derived 2,3,7,8-TCDD toxic equivalent concentrations in wild white sucker (Catostomus commersoni) caged in bleached kraft pulp mill effluent

1995 ◽  
Vol 52 (7) ◽  
pp. 1339-1350 ◽  
Author(s):  
M. R. van den Heuvel ◽  
D. G. Dixon ◽  
K. R. Munkittrick ◽  
M. R. Servos ◽  
G. J. Van Der Kraak
Keyword(s):  
Kraft Pulp ◽  
Pulp Mill ◽  
Pulp Mill Effluent ◽  
White Sucker ◽  
Catostomus Commersoni ◽  
Rapid Reduction ◽  
Handling Stress ◽  
Toxic Equivalent ◽  
Kraft Pulp Mill ◽  
Bleached Kraft Pulp

Prespawning male white sucker (Catostomus commersoni), captured near Jackfish Bay, Lake Superior (exposed to bleached kraft pulp mill effluent (BKME)), and Mountain Bay (reference) were caged in the BKME receiving area for 2, 4, and 8 d. Initially, the hepatic 7-ethoxyresorufin-O-deethylase activity was similar in fish from both BKME and reference sites and, upon BKME exposure, increased 20-fold at both sites after 2 d. The H4IIE cell culture bioassay was used to measure 2,3,7,8-tetrachlorodibenzo-p-dioxin toxic equivalent concentration (TEC) in sucker liver extracts. H4IIE bioassay-derived TECs from Jackfish Bay sucker showed no significant treatment differences; combined TECs for all treatments averaged 51.1 pg∙g−1. Mountain Bay sucker liver TECs were initially significantly less (4.64 pg∙g−1) than the Jackfish Bay TECs but did show a significant, fivefold increase when fish were exposed to effluent. Mountain Bay and Jackfish Bay 8-d BKME-exposed fish showed no uptake of TECs calculated from directly measured polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) during this exposure. The results suggest that PCDDs and PCDFs are not responsible for the mixed function oxidase induction observed. Handling stress caused rapid reduction of the plasma steroids testosterone and 11-ketotestosterone, confounding any possible BKME effect.

Detection of food limitation in health of white sucker (Catostomus commersoni) 5 years after the closure of a bleached kraft pulp mill

2014 ◽  
Vol 50 (2) ◽  
pp. 152-166 ◽  
Author(s):  
T. J. Arciszewski ◽  
M. E. McMaster ◽  
C. B. Portt ◽  
K. R. Munkittrick
Keyword(s):  
Food Limitation ◽  
Pulp Mill ◽  
Response Patterns ◽  
White Sucker ◽  
Pulp Mills ◽  
Catostomus Commersoni ◽  
Northern Ontario ◽  
Bleached Kraft Pulp ◽  
The Status ◽  
Catch Rates

Recovery of fish after implementing better management of effluent or following the closure of pulp mills is not well studied. Results from existing studies suggest the predominant responses observed during the operation of mills would predict a pathway of recovery, but this hypothesis has not been tested at mills with variable effects on fish. Multiple studies done at a mill in northern Ontario showed variable responses in white sucker (Catostomus commersoni), including effects on reproductive endpoints. Data from most years failed, however, to meet strict definitions of response patterns used in Environmental Effects Monitoring. After the permanent closure of the mill in 2006, white sucker were collected in 2011 to determine the status of fish. We predicted that no effects would be observed in white sucker after the mill's closure. Five years after the closure of the mill, however, female white sucker showed statistical food limitation. Males showed a similar trend, but fewer statistical differences. These changes, coupled with reduced catch rates, have not been previously observed downstream of this mill. Our results suggest that recovery of fish after the closure of mills may not be clearly associated with effects found during operation. The absence of recovery after closure may more broadly suggest relevance of effects of operational mills.

Survey of receiving-water environmental impacts associated with discharges from pulp mills: 1. Mill characteristics, receiving-water chemical profiles and lab toxicity tests

1994 ◽  
Vol 13 (7) ◽  
pp. 1075-1088 ◽  
Author(s):  
Richard D. Robinson ◽  
John H. Carey ◽  
Keith R. Solomon ◽  
Ian R. Smith ◽  
Mark R. Servos ◽  
...  
Keyword(s):  
Environmental Impacts ◽  
Toxicity Tests ◽  
Pulp Mills ◽  
Chemical Profiles ◽  
Receiving Water
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