{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T17:33:26Z","timestamp":1779298406593,"version":"3.51.4"},"reference-count":58,"publisher":"Oxford University Press (OUP)","issue":"10","license":[{"start":{"date-parts":[[2019,7,25]],"date-time":"2019-07-25T00:00:00Z","timestamp":1564012800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"},{"start":{"date-parts":[[2019,8,28]],"date-time":"2019-08-28T00:00:00Z","timestamp":1566950400000},"content-version":"vor","delay-in-days":34,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["setac.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2019,7,25]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Wetland environments provide numerous ecosystem services but also facilitate methylmercury (MeHg) production and bioaccumulation. We developed a wetland-management technique to reduce MeHg concentrations in wetland fish and water. We physically modified seasonal wetlands by constructing open- and deep-water treatment cells at the downstream end of seasonal wetlands to promote naturally occurring MeHg-removal processes. We assessed the effectiveness of reducing mercury (Hg) concentrations in surface water and western mosquitofish that were caged at specific locations within 4 control and 4 treatment wetlands. Methylmercury concentrations in wetland water were successfully decreased within treatment cells during only the third year of study; however, treatment cells were not effective for reducing total Hg concentrations. Furthermore, treatment cells were not effective for reducing total Hg concentrations in wetland fish. Mercury concentrations in fish were not correlated with total Hg concentrations in filtered, particulate, or whole water; and the slope of the correlation with water MeHg concentrations differed between months. Fish total Hg concentrations were weakly correlated with water MeHg concentrations in April when fish were introduced into cages but were not correlated in May when fish were retrieved from cages. Fish total Hg concentrations were greater in treatment wetlands than in control wetlands the year after the treatment wetlands\u2019 construction but declined by the second year. During the third year, fish total Hg concentrations increased in both control and treatment wetlands after an unexpected regional flooding event. Overall, we found limited support for the use of open- and deep-water treatment cells at the downstream end of wetlands to reduce MeHg concentrations in water but not fish. We suggest that additional evaluation over a longer period of time is necessary. Environ Toxicol Chem 2019;38:2178\u20132196. Published 2019 Wiley Periodicals, Inc. on behalf of SETAC. This article is a US government work, and as such, is in the public domain in the United States of America..<\/jats:p>\n               <jats:p>Abstract<\/jats:p>\n               <jats:p>We developed a wetland-management technique to reduce methylmercury concentrations in wetland fish and water. We physically modified seasonal wetlands by constructing open- and deep-water treatment cells at the downstream end of seasonal wetlands to promote naturally occurring methylmercury-removal processes.<\/jats:p>","DOI":"10.1002\/etc.4535","type":"journal-article","created":{"date-parts":[[2019,7,25]],"date-time":"2019-07-25T13:28:58Z","timestamp":1564061338000},"page":"2178-2196","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Wetland Management Strategy to Reduce Mercury in Water and Bioaccumulation in Fish"],"prefix":"10.1093","volume":"38","author":[{"given":"Joshua T.","family":"Ackerman","sequence":"first","affiliation":[{"name":"US Geological Survey, Western Ecological Research Center Dixon Field Station Dixon California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jacob A.","family":"Fleck","sequence":"additional","affiliation":[{"name":"US Geological Survey California Water Science Center Sacramento California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Collin A.","family":"Eagles-Smith","sequence":"additional","affiliation":[{"name":"US Geological Survey Forest and Rangeland Ecosystem Science Center Corvallis Oregon"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mark","family":"Marvin-DiPasquale","sequence":"additional","affiliation":[{"name":"US Geological Survey Earth Systems Processes Division Menlo Park California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lisamarie","family":"Windham-Myers","sequence":"additional","affiliation":[{"name":"US Geological Survey Earth Systems Processes Division Menlo Park California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mark P.","family":"Herzog","sequence":"additional","affiliation":[{"name":"US Geological Survey, Western Ecological Research Center Dixon Field Station Dixon California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Harry L.","family":"McQuillen","sequence":"additional","affiliation":[{"name":"US Bureau of Land Management Cosumnes River Preserve Galt California"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2019,7,25]]},"reference":[{"key":"2025010314404512000_etc4535-bib-0001","doi-asserted-by":"crossref","first-page":"1451","DOI":"10.1021\/es9028364","article-title":"Agricultural wetlands as potential hotspots for mercury bioaccumulation: Experimental evidence using caged fish","volume":"44","author":"Ackerman","year":"2010","journal-title":"Environ Sci Technol"},{"key":"2025010314404512000_etc4535-bib-0002","author":"Ackerman","year":"2014"},{"key":"2025010314404512000_etc4535-bib-0003","doi-asserted-by":"crossref","first-page":"6304","DOI":"10.1021\/acs.est.5b00655","article-title":"Experimental dosing of wetlands with coagulants removes mercury from surface water and decreases mercury bioaccumulation in fish","volume":"49","author":"Ackerman","year":"2015","journal-title":"Environ Sci Technol"},{"key":"2025010314404512000_etc4535-bib-0004","doi-asserted-by":"crossref","first-page":"666","DOI":"10.1016\/j.scitotenv.2009.10.030","article-title":"Invertebrate mercury bioaccumulation in permanent, seasonal, and flooded rice wetlands within California's Central Valley","volume":"408","author":"Ackerman","year":"2010","journal-title":"Sci Total Environ"},{"key":"2025010314404512000_etc4535-bib-0005","doi-asserted-by":"crossref","first-page":"276","DOI":"10.1016\/j.scitotenv.2013.10.096","article-title":"Mercury cycling in agricultural and managed wetlands, Yolo Bypass, California: Spatial and seasonal variations in water quality","volume":"484","author":"Alpers","year":"2014","journal-title":"Sci Total Environ"},{"key":"2025010314404512000_etc4535-bib-0006","volume-title":"Standard Methods for the Examination of Water and Wastewater","author":"American Water Works Association, Water Pollution Control Federation, American Public Health Association","year":"1999","edition":"19th ed"},{"key":"2025010314404512000_etc4535-bib-0007","doi-asserted-by":"crossref","first-page":"957","DOI":"10.1016\/j.scitotenv.2013.11.086","article-title":"Methylmercury production in and export from agricultural wetlands in California, USA: The need to account for physical transport processes into and out of the root zone","volume":"472","author":"Bachand","year":"2014","journal-title":"Sci Total Environ"},{"key":"2025010314404512000_etc4535-bib-0008","doi-asserted-by":"crossref","first-page":"2733","DOI":"10.1021\/es8027567","article-title":"Mercury cycling in stream ecosystems. 3. 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