Skip to Main Content
Preliminary assessment of mercury accumulation in Massachusetts and Minnesota seasonal forest poolsAuthor(s): Robert T. Brooks; Susan L. Eggert; Keith H. Nislow; Randall K. Kolka; Celia Y. Chen; Darren M. Ward
Source: Wetlands 32: 653-663.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
Download Publication (252.2 KB)
DescriptionSeasonal forest pools (SFPs) are common, widespread, and provide critical habitat for amphibians and invertebrates. The ephemeral hydrology of SFPs has been identified as an important factor in the production of biologically active methylmercury (MeHg). To investigate mercury (Hg) in SFPs, we collected water, fine benthic organic matter (FBOM), detrital materials, and faunal samples from 10 pools in Massachusetts and Minnesota, across a range of basin morphometry, water chemistry, canopy closure, and hydroperiod. Total Hg (THg) and MeHg concentrations were comparable to other small, lentic waters. MeHg was found in greater concentrations in fauna than in periphyton, detrital items, or FBOM. In spite of consistently lower pool acidity and higher THg deposition in Massachusetts, we found no significant differences in Hg concentrations between states. No significant relationship was found between MeHg concentration and canopy closure. A weak, positive relationship was identified between pool hydroperiod and the bioaccumulation of THg, suggesting that longer exposure may be a factor in increased Hg concentrations in basal resources, which is then propagated into consumer trophic levels. Further work on the mechanisms determining Hg trophic transfer and bioaccumulation is required to fully understand the influence of hydrogeochemical and landscape influences on Hg dynamics in SFPs.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationBrooks, Robert T.; Eggert, Susan L.; Nislow, Keith H.; Kolka, Randall K.; Chen, Celia Y.; Ward, Darren M. 2012. Preliminary assessment of mercury accumulation in Massachusetts and Minnesota seasonal forest pools. Wetlands 32: 653-663.
Keywordsbioaccumulation, methylmercury, seasonal forest pools, total mercury, vernal pools
- Mercury dynamics in the pore water of peat columns during experimental freezing and thawing
- Factors Affecting Soil Total Mercury in Seasonal Pond Basins within a Northern Hardwood Forest in Minnesota, USA
- Depth-area-volume and hydroperiod relationships of ephemeral (vernal) forest pools in southern New England
XML: View XML