The effects of a primary-treated municipal effluent on the immune system of rainbow trout (Oncorhynchus mykiss): Exposure duration and contribution of suspended particles

Hebert, Nancy; Gagné, François; Čejka, Patrick; Cyr, Daniel G.; Marcogliese, David J.; Blaise, C.; Pellerin, J.; Fournier, Michel

doi:10.1016/j.cbpc.2008.06.007

Cited by 17 publications

(16 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been shown that animal responses to pollutants can vary according to the portion of the pollutant that the animals are exposed to (i.e., soluble and insoluble fractions, precipitated particles) (Hébert et al 2008); however, further studies on this subject are needed for several contaminants, including petroleum derivatives. Studies on benthic animals can provide important data on differential responses of organisms to pollutants in different aquatic matrices.…”

Section: Introductionmentioning

confidence: 99%

Oxidative stress in Nile tilapia (Oreochromis niloticus) and armored catfish (Pterygoplichthys anisitsi) exposed to diesel oil

Nogueira

Rodrigues

Trídico

et al. 2010

Environ Monit Assess

View full text Add to dashboard Cite

Considering that diesel oil is one of the most common aquatic contaminants, we compare the oxidative stress between two species of fish with different habitats (Pterygoplichthys anisitsi, benthic and Oreochromis niloticus, nektonic) exposed to diesel oil. Malondialdehyde concentrations (MDA) and the activities of ethoxyresorufin-O-deethylase (EROD), glutathione S-transferase (GST), catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase were all analyzed in the fishes' livers and gills after 2 and 7 days of exposure to different concentrations of diesel (0.1 and 0.5 mL/L). In the tilapia, MDA levels and the activities of EROD and GST activity in the liver, as well as MDA levels and the activities of GST and SOD in the gill had statistically significant differences between the treatments and between the times of exposure. For the catfish, the same occurred in the case of MDA, EROD, and SOD in the liver and in CAT and SOD in the gills. There were significant differences in the enzyme activity and lipid peroxidation between the species. Although the activity of most enzymes seemed to be more expressive and responsive to diesel in O. niloticus, diesel oil also caused significant effects on oxidative stress parameters in P. anisitsi, even though this species is benthic and thus has less access to insoluble fractions of diesel oil. Therefore, both species can be used as sentinel organisms in environmental biomonitoring of diesel contamination.

show abstract

Section: Introductionmentioning

confidence: 99%

Oxidative stress in Nile tilapia (Oreochromis niloticus) and armored catfish (Pterygoplichthys anisitsi) exposed to diesel oil

Nogueira

Rodrigues

Trídico

et al. 2010

Environ Monit Assess

View full text Add to dashboard Cite

show abstract

“…Studies conducted under laboratory conditions in which rainbow trout were exposed to Montreal wastewater effluents confirmed the immunotoxic potential of these effluents (Salo et al 2007;Escarné et al 2008;Hébert et al 2008). Tests of various fractions of effluents clearly showed that the soluble fraction from which bacteria and suspended materials were systematically removed retained immunotoxic effects, indicating that the immunotoxicity of the effluent was not due exclusively to its bacterial content (Hébert et al 2008). Indeed, exposure to bacteria in effluents may stimulate the immune response and promote immunization against other pathogenic agents (Escarné et al 2008;Ménard et al 2010).…”

Section: Effects On Fish Immune Functionmentioning

confidence: 91%

“…Phagocytic activities of pronephric macrophages and of granulocytes were suppressed following a 1 week exposure, with the greatest suppressive effects being observed at the highest exposure concentration. Surprisingly, phagocytic activity returned to control levels or was enhanced after 4 weeks, but was reduced again at 13 weeks (Salo et al 2007;Hébert et al 2008). The cytotoxic activity of non-specific cytotoxic cells from the head kidney was enhanced after a 1-week exposure, especially at the lowest exposure concentration, but rebounded to control levels after 4 weeks (Salo et al 2007).…”

Section: Effects On Fish Immune Functionmentioning

confidence: 92%

“…A series of experiments characterized the chronic toxicity of the effluents in juvenile female rainbow trout exposed under laboratory conditions to Montreal wastewater effluent for 1, 4, and 13 weeks to varying concentrations of sewage effluent (Salo et al 2007;Hébert et al 2008). Phagocytic activities of pronephric macrophages and of granulocytes were suppressed following a 1 week exposure, with the greatest suppressive effects being observed at the highest exposure concentration.…”

Section: Effects On Fish Immune Functionmentioning

confidence: 99%

“…The cytotoxic activity of non-specific cytotoxic cells from the head kidney was enhanced after a 1-week exposure, especially at the lowest exposure concentration, but rebounded to control levels after 4 weeks (Salo et al 2007). Lymphocyte proliferation in response to the mitogens lipopolysaccharide (LPS) and concanavilin A (ConA) activation was not affected following exposure to sewage effluents, but non-activated, spontaneous proliferation of lymphocytes was suppressed in a dose-dependent manner after 4 and 13 weeks of exposure (Salo et al 2007;Hébert et al 2008). Plasma lysozyme activity was elevated at the lowest exposure concentration after 4 weeks.…”

Section: Effects On Fish Immune Functionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of a major municipal effluent on the St. Lawrence River: A case study

Marcogliese

Blaise

Cyr

et al. 2014

AMBIO

View full text Add to dashboard Cite

The St. Lawrence River (SLR) is the second largest waterway in North America. The discharge of the City of Montreal wastewater treatment plant (WWTP) represents the largest volume of treated wastewaters being released into the river. It also ranks as the largest sewage treatment plant of its kind in North America. Over the last decade, intensive multidisciplinary research has focused on assessing the impacts of Montreal wastewater effluents on the SLR. We describe the major findings of these investigations, including the determination of the fate of contaminants, bioaccumulation in fish and invertebrates, ecotoxicological measurements of aquatic animal health, evaluation of endocrine disruption, parasitism in fish, and combined effects of multiple stressors on the SLR. Impacts of the effluents from the WWTP on aquatic organisms from the SLR are both toxicological and ecological, demonstrating the need for an integrated view of the impacts of municipal effluents on aquatic ecosystems.

show abstract

Biochemical Alteration in the Labeo rohita Tissues Following Exposure to the Effluent Generated during Extraction of Metals from Polymetallic Sea Nodules

Vaseem

Banerjee

2013

CLEAN Soil Air Water

View full text Add to dashboard Cite

Effect of the effluent generated during extraction of precious metals from polymetallic sea nodules have been illustrated by analyzing the biochemical alterations in freshwater fish Labeo rohita. Increase or decrease in the different biomolecules in various tissues (skin, muscles, gills, liver, kidney, and brain) observed was discussed in the light of stress caused by exposures of this effluent. Decrease in concentration of glycogen, total lipids, cholesterol, and total protein in most of the tissues indicate their role in providing the continuous energy requirement under toxic stress in the exposed fish. Reduced DNA and RNA concentration in exposed fish showed effluent toxic effect on DNA synthesis and transcriptional level. With the prolongation of exposure, reduction in activities of aspartate amino transferase, alanine amino transferase, and alkaline phosphatase were observed in all the exposed tissues indicating their cellular degeneration. In conclusion, the sea nodule effluent was found to be very toxic and have negative health impact on the fish.

show abstract

The effects of a primary-treated municipal effluent on the immune system of rainbow trout (Oncorhynchus mykiss): Exposure duration and contribution of suspended particles

Cited by 17 publications

References 37 publications

Oxidative stress in Nile tilapia (Oreochromis niloticus) and armored catfish (Pterygoplichthys anisitsi) exposed to diesel oil

Oxidative stress in Nile tilapia (Oreochromis niloticus) and armored catfish (Pterygoplichthys anisitsi) exposed to diesel oil

Effects of a major municipal effluent on the St. Lawrence River: A case study

Biochemical Alteration in the Labeo rohita Tissues Following Exposure to the Effluent Generated during Extraction of Metals from Polymetallic Sea Nodules

Contact Info

Product

Resources

About