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Survey of receiving‐water environmental impacts associated with discharges from pulp mills: 2. Gonad size, liver size, hepatic erod activity and plasma sex steroid levels in white sucker
Fish collected from the receiving areas of 12 Canadian pulp mills were examined, including sites receiving effluent from kraft mills using chlorine as well as sulfite mills. Field collectionsExpand
Survey of receiving-water environmental impacts associated with discharges from pulp mills: 1. Mill characteristics, receiving-water chemical profiles and lab toxicity tests
This survey examined the relationship between environmental responses at pulp mill sites and the pulping process (kraft vs. sulphite/thermomechanical pulping), effluent treatment (primary vs.Expand
Environmental impacts of pulp and paper wastewater: Evidence for a reduction in environmental effects at North American pulp mills since 1992
Improvements in the performance of wild fish have been recorded at five North American sites after the mills modernized their waste treatment and pulping processes, however, the improvements are not complete and are not universal and the process changes resulting in the improvement in environmental conditions have not been defined. Expand
Survey of receiving‐water environmental impacts associated with discharges from pulp mills: 3. Polychlorinated dioxins and furans in muscle and liver of white sucker (Catostomus commersoni)
Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) were measured in white sucker liver samples from seven pulp and paper mill sites, and three reference sites in Ontario. The millsExpand
Development of a sediment bioassay to determine bioavailability of PAHs to fish
Recent work has shown that MFO induction and loss of control of steroid hormone production occurs in fish after exposure to pulp mill effluents, PCBs, PAHs, and some pesticides. We had recentlyExpand
Seasonal reproductive patterns and recommended sampling times for sentinel fish species used in environmental effects monitoring programs in Canada.
Using available data on seasonal changes in gonadosomatic indices, the seasonal reproductive patterns of Canadian fish species were divided into categories based on reproductive strategy and the timing of initiation of gonadal recrudescence and recommended sampling times were developed. Expand
Spatial and Temporal Movements of White Sucker: Implications for Use as a Sentinel Species
The movements of white suckers in a 65-km reach of the Saint John River, New Brunswick, were studied from 2001 to 2003 using radio and acoustic tracking and analyses of stable isotope ratios. Expand
The Effect of Seafood Processing Plant Effluent on Sentinel Fish Species in Coastal Waters of the Southern Gulf of St. Lawrence, New Brunswick
In a number of cases, fish exposed to effl uent differed from reference fi sh sampled from bays without fi sh plants but not from the local reference site, implying that the entire bay was affected either by the seafood processing plant or by some other factors. Expand
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
The H4IIE rat hepatoma bioassay was used to measure 2,3,7,8-tetrachlorodibenzo-p-dioxin toxic equivalent concentrations (TECs) in livers of white sucker (Catostomus commersom) collected downstreamExpand
Increased size and relative abundance of migratory fishes observed near the Athabasca oil sands
Responses to chemical and physical stressors are commonly expected among organisms residing near the Athabasca oil sands. Physiological effects have been observed in fishes during field studies; butExpand