MFO induction in fish by spent cooking liquors from kraft pulp mills

Hodson, Peter V.; Maj, Michelle; Efler, Sue; Burnison, B. Kent; Heiningen, A. R. P. Van; Girard, Russell; Carey, John H.

doi:10.1002/etc.5620160510

Cited by 20 publications

(2 citation statements)

References 13 publications

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“…Better growth performances were observed in the C. gariepinus juveniles within the control (0% WSF) compared to the test fishes exposed to varying concentrations of WSF of crude oil in this study. Poor growth performances in the exposed group could be attributed to the effects of the soluble fractions of crude Polycyclic Aromatic Hydrocarbon (PAH) and Total Petroleum Hydrocarbon (TPH) which probably affected the fish eco-physiology (Hodson et al,1997). The high feed conversion ratio (FCR) observed in the exposed group indicated the inability of the exposed fish to convert feed consumed into required body protein (Sunmonu and Oloyede, 2006).…”

Section: Discussionmentioning

confidence: 99%

Growth Performance and Selected Biochemical Indices Assessment in the Serum and Liver of Clarias Gariepinus Juveniles Exposed to Varying Concentrations of Water Soluble Fraction of Crude Oil

Olaleye¹,

Fakolujo²,

Adewole³

et al. 2023

BSJ

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The effect of varying concentrations (0, 0.25, 0.05 and 1.0% v/v) of water soluble fraction (WSF) of crude oil on the growth performance and biochemical changes in the serum and liver of 144 Clarias gariepinus Juveniles stocked into 12 glass aquaria at the rate of 12 fish per tank in triplicate for 90 days was assessed. The growth performance indices of the fish juvenile over the 90 days of toxic exposure revealed that the mean weight gained, specific growth rate, and total feed intake of the fish specimen decreases with increase concentration of the WSF of crude oil. However, 10% and 20% mortality were recorded in the fish exposed to 0.5% and 1.0% WSF of crude oil respectively. The activity of ALT and AST in the serum of the fish were significantly higher (p<0.05) with the increased concentration of WSF of crude oil while the ALT and AST activity of the liver of the fish juveniles irrespective of the added concentration of WSF of crude oil showed no significant differences (p>0.05). The study concluded that WSF of crude oil had adverse effects on the growth performance, blood serum and liver activities in C. gariepinus juveniles.

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Section: Discussionmentioning

confidence: 99%

Growth Performance and Selected Biochemical Indices Assessment in the Serum and Liver of Clarias Gariepinus Juveniles Exposed to Varying Concentrations of Water Soluble Fraction of Crude Oil

Olaleye¹,

Fakolujo²,

Adewole³

et al. 2023

BSJ

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“…Spills of black liquor can result from overflows, leaks from process equipment, or from deliberate dumping by operators to avoid a more serious accident in a mill (USEPA 2002). Technically, however, the majority of black liquor spills are diverted to holding ponds and bled back to the plant's treatment systems before any discharge into the environment (Hodson et al 1997).…”

Section: Introductionmentioning

confidence: 99%

Exposure assessment of fishes to a modern pulp and paper mill effluents after a black liquor spill

Meriläinen

Oikari

2007

Environ Monit Assess

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Conjugated resin acids (RAs) in fish bile are considered a sensitive chemical indicator of exposure to pulp and paper mill effluent, and were used in this study to monitor the post-spill situation of a lake area (Southern Lake Saimaa) contaminated by black liquor discharged from a mill in June 2003. From the exposure perspective of populations of wild roach and perch, which were studied for their bile RAs at four time periods (July 2003, September 2003, May 2004, July 2004), the exceptional event passed in 2 months or less. Perch had lower concentration of RAs in bile than roach in all sampling areas and all times. Besides the current emissions present in the water column, part of the exposure status of the roach population to RAs seemed to derive from historically contaminated sediments. In order to test this hypothesis, a laboratory experiment with perch and roach, along with three teleosts (rainbow trout, brown trout and whitefish), was conducted. The species were simultaneously exposed for 7 days to RAs (23 microg/l). We calculated a perch/roach-ratio to investigate the difference in origin of exposure between perch and roach populations in the wild and in the laboratory. One year after the spill, the perch/roach-ratio of bile RAs was 0.25 (CV 25%) at 1 km from the mill. This is in contrast to that found under the sole waterborne conditions (0.44; CV 24%), supporting the idea that sediments serve as an additional source of RAs in roach. Additionally, bioconcentration factor log BCF(bile(RA)) was calculated to assess hepatobiliary performance and the capacity to excrete RAs in fish.

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Chronic retene exposure causes sustained induction of CYP1A activity and protein in rainbow trout (Oncorhynchus mykiss)

Fragoso

Parrott

Hahn

et al. 1998

Enviro Toxic and Chemistry

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Abstract-The removal of persistent chlorinated organic compounds from pulp mill effluents has not eliminated mixed function oxygenase (MFO) induction by these effluents. Therefore, continuous MFO induction downstream of pulp mills may be due to exposure to more labile compounds, such as retene (an alkyl-substituted phenanthrene), which typically cause transient induction after a single brief exposure. Because fish are exposed continuously to pulp mill effluents, we have tested, and rejected, the null hypothesis that continuous exposure of fish to retene does not cause sustained MFO induction. Rainbow trout exposed continuously to retene, a component of some pulp mill effluents and sediments downstream of pulp mills, showed concentration-dependent increases in hepatic ethoxyresorufin-O-deethylase (EROD) activity. The increase in EROD activity was sustained over 32 d of continuous exposure, but it diminished to background levels within 4 d after transfer to clean water. The enzymatic response was confirmed by measuring changes in the content of immunodetectable cytochrome P4501A (CYP1A) protein. These data support a role for labile, nonhalogenated compounds in chronic effects of pulp mill effluents on fish.

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MFO induction in fish by spent cooking liquors from kraft pulp mills

Cited by 20 publications

References 13 publications

Growth Performance and Selected Biochemical Indices Assessment in the Serum and Liver of Clarias Gariepinus Juveniles Exposed to Varying Concentrations of Water Soluble Fraction of Crude Oil

Growth Performance and Selected Biochemical Indices Assessment in the Serum and Liver of Clarias Gariepinus Juveniles Exposed to Varying Concentrations of Water Soluble Fraction of Crude Oil

Exposure assessment of fishes to a modern pulp and paper mill effluents after a black liquor spill

Chronic retene exposure causes sustained induction of CYP1A activity and protein in rainbow trout (Oncorhynchus mykiss)

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