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Patterns of total mercury and methylmercury bioaccumulation in Antarctic krill (Euphausia superba) along the West Antarctic Peninsula

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Text
TitleInfo
Title
Patterns of total mercury and methylmercury bioaccumulation in Antarctic krill (Euphausia superba) along the West Antarctic Peninsula
Name (type = personal); (authority = orcid); (authorityURI = http://id.loc.gov/vocabulary/identifiers/orcid.html); (valueURI = http://orcid.org/0000-0001-8817-730X)
NamePart (type = family)
Sontag
NamePart (type = given)
Philip T.
Affiliation
Dean's Office (School of Engineering), Rutgers University
Role
RoleTerm (type = text); (authority = marcrt)
author
Name (type = personal)
NamePart (type = family)
Steinberg
NamePart (type = given)
Debbie K.
Role
RoleTerm (type = text); (authority = marcrt)
author
Affiliation
Virginia Institute of Marine Science
Name (type = personal)
NamePart (type = family)
Reinfelder
NamePart (type = given)
John R.
Affiliation
Environmental Sciences, Rutgers University
Role
RoleTerm (type = text); (authority = marcrt)
author
Name (type = corporate); (authority = RutgersOrg-Department)
NamePart
Dean's Office (School of Engineering)
Name (type = corporate); (authority = RutgersOrg-School)
NamePart
School of Engineering
Name (type = corporate); (authority = RutgersOrg-Department)
NamePart
Environmental Sciences
Name (type = corporate); (authority = RutgersOrg-School)
NamePart
School of Environmental and Biological Sciences (SEBS)
Genre (authority = RULIB-FS)
Article, Refereed
Genre (authority = NISO JAV)
Accepted Manuscript (AM)
Note (type = peerReview)
Peer reviewed
OriginInfo
DateCreated (encoding = w3cdtf); (qualifier = exact); (keyDate = yes)
2019
Abstract (type = Abstract)
We examined mercury (Hg) accumulation in juvenile and adult subpopulations of Antarctic krill (Euphausia superba) collected west of the Antarctic Peninsula. Samples were collected along a northern cross-shelf transect beginning near Anvers Island and farther south near the sea ice edge in the austral summers of 2011, 2013, 2014, and 2015. Regardless of geographical position,mean concentrations of total Hg and methylmercury (MeHg), the form of Hg that biomagnifies in marine food webs, were significantly higher in juvenile than adult krill in all years. In 2013, juvenile Antarctic krill collected along the coast near Anvers Island had significantly higher MeHg concentrations than krill collected farther offshore, and in 2013 and 2014, coastal juvenile krill exhibited some of the highest MeHg concentrations of all subpopulations sampled. Across all sampling years, collection in northern (sea ice-free) or southern (sea ice edge) transects did not affect MeHg concentrations of juvenile or adult krill, suggesting similar levels and routes of MeHg exposure across the latitudes sampled. Developmental stage, feeding near the coast, and annual variations in sea ice-driven primary and export production were identified as potentially important factors leading to greater MeHg accumulation in juvenile than adult krill. Krill dependent predators feeding primarily on juveniles may thus accumulate more MeHg than consumers foraging on older krill. These results report MeHg concentrations in Antarctic krill and will be useful for predicting Hg biomagnification in higher-level consumers in this productive Antarctic ecosystem.
Language
LanguageTerm (authority = ISO 639-3:2007); (type = text)
English
PhysicalDescription
InternetMediaType
application/pdf
Extent
1 online resource (45 pages) : illustrations
Subject (authority = local)
Topic
Mercury
Subject (authority = local)
Topic
Antarctica
Subject (authority = local)
Topic
Krill development
Subject (authority = local)
Topic
Sea ice
Subject (authority = local)
Topic
Primary and export production
Extension
DescriptiveEvent
Type
Citation
DateTime (encoding = w3cdtf)
2019
AssociatedObject
Name
Science of the Total Environment
Type
Journal
Relationship
Has part
Detail
174-183
Identifier (type = volume and issue)
688
Reference (type = url)
https://doi.org/10.1016/j.scitotenv.2019.06.176
Extension
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Type
Grant award
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Role
Funder
Name
National Science Foundation
AssociatedEntity
Role
Originator
Name
Debbie K. Steinberg
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Type
Grant number
Name
OPP NSF PLR 1440453
Extension
DescriptiveEvent
Type
Grant award
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Role
Funder
Name
National Science Foundation
AssociatedEntity
Role
Originator
Name
John Reinfelder
AssociatedObject
Type
Grant number
Name
OCE-1634154
Extension
DescriptiveEvent
Type
Grant award
AssociatedEntity
Role
Funder
Name
New Jersey Agricultural Experimental Station
AssociatedEntity
Role
Originator
Name
John Reinfelder
AssociatedObject
Type
Grant number
Name
Hatch/McIntyre-Stennis grant
RelatedItem (type = host)
TitleInfo
Title
Sontag, Philip T.
Identifier (type = local)
rucore30267200001
Location
PhysicalLocation (authority = marcorg); (displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier (type = doi)
doi:10.7282/t3-6n5d-9x73
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Rights

RightsDeclaration (AUTHORITY = FS); (TYPE = [FS] statement #1); (ID = rulibRdec0004)
Copyright for scholarly resources published in RUcore is retained by the copyright holder. By virtue of its appearance in this open access medium, you are free to use this resource, with proper attribution, in educational and other non-commercial settings. Other uses, such as reproduction or republication, may require the permission of the copyright holder.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
RightsEvent
Type
Permission or license
AssociatedObject
Type
License
Name
Multiple author license v. 1
Detail
I hereby grant to Rutgers, The State University of New Jersey (Rutgers) the non-exclusive right to retain, reproduce, and distribute the deposited work (Work) in whole or in part, in and from its electronic format, without fee. This agreement does not represent a transfer of copyright to Rutgers.Rutgers may make and keep more than one copy of the Work for purposes of security, backup, preservation, and access and may migrate the Work to any medium or format for the purpose of preservation and access in the future. Rutgers will not make any alteration, other than as allowed by this agreement, to the Work.I represent and warrant to Rutgers that the Work is my original work. I also represent that the Work does not, to the best of my knowledge, infringe or violate any rights of others.I further represent and warrant that I have obtained all necessary rights to permit Rutgers to reproduce and distribute the Work and that any third-party owned content is clearly identified and acknowledged within the Work.By granting this license, I acknowledge that I have read and agreed to the terms of this agreement and all related RUcore and Rutgers policies.
RightsEvent
Type
Embargo
DateTime (encoding = w3cdtf); (point = end); (qualifier = exact); (keyDate = no)
2019-08-27
DateTime (encoding = w3cdtf); (point = start); (qualifier = exact); (keyDate = no)
2019-06-27
Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after August 27, 2019.
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2019-06-27T11:29:14
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2019-06-27T11:29:14
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