PERFORM Publications

Keyword search (4,163 papers available)

Title		Authors	PubMed ID
1	Eutrophication and Warming Drive Algal Community Shifts in Synchronised Time Series of Experimental Lakes	Garner RE; Taranu ZE; Higgins SN; Paterson MJ; Gregory-Eaves I; Walsh DA;	40704779 BIOLOGY
2	Water Quality and Land Use Shape Bacterial Communities Across 621 Canadian Lakes	Onana VE; Beisner BE; Walsh DA;	39868666 BIOLOGY
3	Vulnerability of Arctic Ocean microbial eukaryotes to sea ice loss	Jackson VLN; Grevesse T; Kilias ES; Onda DFL; Young KF; Allen MJ; Walsh DA; Lovejoy C; Monier A;	39572565 BIOLOGY
4	A genome catalogue of mercury-methylating bacteria and archaea from sediments of a boreal river facing human disturbances	Lawruk-Desjardins C; Storck V; Ponton DE; Amyot M; Walsh DA;	38922750 BIOLOGY
5	A multiyear time series (2004-2012) of bacterial and archaeal community dynamics in a changing Arctic Ocean	Kraemer SA; Ramachandran A; Onana VE; Li WKW; Walsh DA;	38282643 BIOLOGY
6	Publisher Correction: A genome catalogue of lake bacterial diversity and its drivers at continental scale	Garner RE; Kraemer SA; Onana VE; Fradette M; Varin MP; Huot Y; Walsh DA;	37821571 BIOLOGY
7	A genome catalogue of lake bacterial diversity and its drivers at continental scale	Garner RE; Kraemer SA; Onana VE; Fradette M; Varin MP; Huot Y; Walsh DA;	37524802 BIOLOGY
8	Geospatial analysis reveals a hotspot of fecal bacteria in Canadian prairie lakes linked to agricultural non-point sources	Oliva A; Onana VE; Garner RE; Kraemer SA; Fradette M; Walsh DA; Huot Y;	36653256 BIOLOGY
9	Degradation pathways for organic matter of terrestrial origin are widespread and expressed in Arctic Ocean microbiomes	Grevesse T; Guéguen C; Onana VE; Walsh DA;	36566218 BIOLOGY
10	A resistome survey across hundreds of freshwater bacterial communities reveals the impacts of veterinary and human antibiotics use	Kraemer SA; Barbosa da Costa N; Oliva A; Huot Y; Walsh DA;	36338036 BIOLOGY
11	Comparing microscopy and DNA metabarcoding techniques for identifying cyanobacteria assemblages across hundreds of lakes	MacKeigan PW; Garner RE; Monchamp MÈ; Walsh DA; Onana VE; Kraemer SA; Pick FR; Beisner BE; Agbeti MD; da Costa NB; Shapiro BJ; Gregory-Eaves I;	35287928 BIOLOGY
12	Rethinking microbial infallibility in the metagenomics era	O' Malley MA; Walsh DA;	34160589 BIOLOGY
13	A Novel Freshwater to Marine Evolutionary Transition Revealed within Methylophilaceae Bacteria from the Arctic Ocean	Ramachandran A; McLatchie S; Walsh DA;	34154421 BIOLOGY
14	Role of organic matter and microbial communities in mercury retention and methylation in sediments near run-of-river hydroelectric dams.	Millera Ferriz L, Ponton DE, Storck V, Leclerc M, Bilodeau F, Walsh DA, Amyot M	33609815 BIOLOGY
15	Sediment Metagenomes as Time Capsules of Lake Microbiomes.	Garner RE; Gregory-Eaves I; Walsh DA;	33148818 BIOLOGY
16	A large-scale assessment of lakes reveals a pervasive signal of land use on bacterial communities.	Kraemer SA, Barbosa da Costa N, Shapiro BJ, Fradette M, Huot Y, Walsh DA	32770118 BIOLOGY
17	Modelling Free-Living and Particle-Associated Bacterial Assemblages across the Deep and Hypoxic Lower St. Lawrence Estuary.	Cui TT, Dawson TJ, McLatchie S, Dunn K, Bielawski J, Walsh DA	32434843 BIOLOGY
18	Diversity and biogeography of SAR11 bacteria from the Arctic Ocean.	Kraemer S, Ramachandran A, Colatriano D, Lovejoy C, Walsh DA	31501503 BIOLOGY
19	The NSERC Canadian Lake Pulse Network: A national assessment of lake health providing science for water management in a changing climate.	Huot Y, Brown CA, Potvin G, Antoniades D, Baulch HM, Beisner BE, Bélanger S, Brazeau S, Cabana H, Cardille JA, Del Giorgio PA, Gregory-Eaves I, Fortin MJ, Lang AS, Laurion I, Maranger R, Prairie YT, Rusak JA, Segura PA, Siron R, Smol JP, Vinebrooke RD, Walsh DA	31419692 BIOLOGY
20	Genomic evidence for the degradation of terrestrial organic matter by pelagic Arctic Ocean Chloroflexi bacteria.	Colatriano D, Tran PQ, Guéguen C, Williams WJ, Lovejoy C, Walsh DA	30271971 BIOLOGY
21	BioMiCo: a supervised Bayesian model for inference of microbial community structure.	Shafiei M, Dunn KA, Boon E, MacDonald SM, Walsh DA, Gu H, Bielawski JP	25774293 BIOLOGY
22	A compendium of multi-omic sequence information from the Saanich Inlet water column.	Hawley AK, Torres-Beltrán M, Zaikova E, Walsh DA, Mueller A, Scofield M, Kheirandish S, Payne C, Pakhomova L, Bhatia M, Shevchuk O, Gies EA, Fairley D, Malfatti SA, Norbeck AD, Brewer HM, Pasa-Tolic L, Del Rio TG, Suttle CA, Tringe S, Hallam SJ	29087368 BIOLOGY
23	A compendium of geochemical information from the Saanich Inlet water column.	Torres-Beltrán M, Hawley AK, Capelle D, Zaikova E, Walsh DA, Mueller A, Scofield M, Payne C, Pakhomova L, Kheirandish S, Finke J, Bhatia M, Shevchuk O, Gies EA, Fairley D, Michiels C, Suttle CA, Whitney F, Crowe SA, Tortell PD, Hallam SJ	29087371 BIOLOGY
24	Microbial life under ice: Metagenome diversity and in situ activity of Verrucomicrobia in seasonally ice-covered Lakes.	Tran P, Ramachandran A, Khawasik O, Beisner BE, Rautio M, Huot Y, Walsh DA	29921005 BIOLOGY
25	Progress and Challenges in Ocean Metaproteomics and Proposed Best Practices for Data Sharing.	Saito MA, Bertrand EM, Duffy ME, Gaylord DA, Held NA, Hervey WJ, Hettich RL, Jagtap PD, Janech MG, Kinkade DB, Leary DH, McIlvin MR, Moore EK, Morris RM, Neely BA, Nunn BL, Saunders JK, Shepherd AI, Symmonds NI, Walsh DA	30702898 BIOLOGY
26	Annual nitrification dynamics in a seasonally ice-covered lake.	Massé S, Botrel M, Walsh DA, Maranger R	30893339 BIOLOGY
27	Author Correction: A compendium of geochemical information from the Saanich Inlet water column.	Torres-Beltrán M, Hawley AK, Capelle D, Zaikova E, Walsh DA, Mueller A, Scofield M, Payne C, Pakhomova L, Kheirandish S, Finke J, Bhatia M, Shevchuk O, Gies EA, Fairley D, Michiels C, Suttle CA, Whitney F, Crowe SA, Tortell PD, Hallam SJ	30647409 BIOLOGY

Title:	Role of organic matter and microbial communities in mercury retention and methylation in sediments near run-of-river hydroelectric dams.
Authors:	Millera Ferriz L, Ponton DE, Storck V, Leclerc M, Bilodeau F, Walsh DA, Amyot M
Link:	https://www.ncbi.nlm.nih.gov/pubmed/33609815
DOI:	10.1016/j.scitotenv.2021.145686
Publication:	The Science of the total environment
Keywords:
PMID:	33609815	Category:	Sci Total Environ	Date Added:	2021-02-21
Dept Affiliation:	BIOLOGY 1 Département de sciences biologiques, Université de Montréal, Montreal H2V 2S9, QC, Canada; Biology Department, Concordia University, Montreal H4B 1R6, QC, Canada; GRIL, Groupe de Recherche Interuniversitaire en Limnologie, Département de sciences biologiques, Université de Montréal, Campus MIL, Montreal H3C 3J7, QC, Canada. 2 Département de sciences biologiques, Université de Montréal, Montreal H2V 2S9, QC, Canada; GRIL, Groupe de Recherche Interuniversitaire en Limnologie, Département de sciences biologiques, Université de Montréal, Campus MIL, Montreal H3C 3J7, QC, Canada. 3 Département de sciences biologiques, Université de Montréal, Montreal H2V 2S9, QC, Canada; Biology Department, Concordia University, Montreal H4B 1R6, QC, Canada. 4 Hydro-Québec Production, Environment Department, Montreal, QC, Canada. 5 Biology Department, Concordia University, Montreal H4B 1R6, QC, Canada; GRIL, Groupe de Recherche Interuniversitaire en Limnologie, Département de sciences biologiques, Université de Montréal, Campus MIL, Montreal H3C 3J7, QC, Canada. 6 Département de sciences biologiques, Université de Montréal, Montreal H2V 2S9, QC, Canada; GRIL, Groupe de Recherche Interuniversitaire en Limnologie, Département de sciences biologiques, Université de Montréal, Campus MIL, Montreal H3C 3J7, QC, Canada. Electronic address: m.amyot@umontreal.ca.

Description:

Role of organic matter and microbial communities in mercury retention and methylation in sediments near run-of-river hydroelectric dams.

Sci Total Environ. 2021 Feb 06; 774:145686

Authors: Millera Ferriz L, Ponton DE, Storck V, Leclerc M, Bilodeau F, Walsh DA, Amyot M

Abstract

Run-of-river power plants (RoRs) are expected to triple in number over the next decades in Canada. These structures are not anticipated to considerably promote the mobilization and transport of mercury (Hg) and its subsequent microbial transformation to methylmercury (MeHg), a neurotoxin able to biomagnify in food webs up to humans. To test whether construction of RoRs had an effect on Hg transport and transformation, we studied Hg and MeHg concentrations, organic matter contents and methylating microbial community abundance and composition in the sediments of a section of the St. Maurice River (Quebec, Canada). This river section has been affected by the construction of two RoR dams and its watershed has been disturbed by a forest fire, logging, and the construction of wetlands. Higher total Hg (THg) and MeHg concentrations were observed in the surface sediments of the flooded sites upstream of the RoRs. These peaks in THg and MeHg were correlated with organic matter proportions in the sediments (r2 = 0.87 and 0.82, respectively). In contrast, the proportion of MeHg, a proxy for methylation potential, was best explained by the carbon to nitrogen ratio suggesting the importance of terrigenous organic matter as labile substrate for Hg methylation in this system. Metagenomic analysis of Hg-methylating communities based on the hgcA functional gene marker indicated an abundance of methanogens, sulfate reducers and fermenters, suggesting that these metabolic guilds may be primary Hg methylators in these surface sediments. We propose that RoR pondages act as traps for sediments, organic matter and Hg, and that this retention can be amplified by other disturbances of the watershed such as forest fire and logging. RoR flooded sites can be conducive to Hg methylation in sediments and may act as gateways for bioaccumulation and biomagnification of MeHg along food webs, particularly in disturbed watersheds.

PMID: 33609815 [PubMed - as supplied by publisher]

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