PMID- 35523379
OWN - NLM
STAT- MEDLINE
DCOM- 20220603
LR  - 20220603
IS  - 1873-6424 (Electronic)
IS  - 0269-7491 (Linking)
VI  - 306
DP  - 2022 Aug 1
TI  - Seasonal pollutant levels in littoral high-Arctic amphipods in relation to food 
      sources and terrestrial run-off.
PG  - 119361
LID - S0269-7491(22)00575-9 [pii]
LID - 10.1016/j.envpol.2022.119361 [doi]
AB  - Increasing terrestrial run-off from melting glaciers and thawing permafrost to 
      Arctic coastal areas is expected to facilitate re-mobilization of stored legacy 
      persistent organic pollutants (POPs) and mercury (Hg), potentially increasing 
      exposure to these contaminants for coastal benthic organisms. We quantified 
      chlorinated POPs and Hg concentrations, lipid content and multiple dietary 
      markers, in a littoral deposit-feeding amphipod Gammarus setosus and sediments 
      during the melting period from April to August in Adventelva river estuary in 
      Svalbard, a Norwegian Arctic Aarchipelago. There was an overall decrease in 
      concentrations of  summation operatorPOPs from April to August (from 58 +/- 23 to 13 +/- 4 ng/g lipid 
      weight; lw), Hg (from 5.6 +/- 0.7 to 4.1 +/- 0.5 ng/g dry weight; dw) and Methyl Hg 
      (MeHg) (from 5 +/- 1 to 0.8 +/- 0.7 ng/g dw) in G. setosus. However, we observed a 
      seasonal peak in penta- and hexachlorobenzene (PeCB and HCB) in May (2.44 +/- 0.3 
      and 23.6 +/- 1.7 ng/g lw). Sediment concentrations of POPs and Hg (dw) only partly 
      correlated with the contaminant concentrations in G. setosus. Dietary markers, 
      including fatty acids and carbon and nitrogen stable isotopes, indicated a diet 
      of settled phytoplankton in May-July and a broader range of carbon sources after 
      the spring bloom. Phytoplankton utilization and chlorobenzene concentrations in 
      G. setosus exhibited similar seasonal patterns, suggesting a dietary uptake of 
      chlorobenzenes that is delivered to the aquatic environment during spring 
      snowmelt. The seasonal decrease in contaminant concentrations in G. setosus could 
      be related to seasonal changes in dietary contaminant exposure and amphipod 
      ecology. Furthermore, this decrease implies that terrestrial run-off is not a 
      significant source of re-mobilized Hg and legacy POPs to littoral amphipods in 
      the Adventelva river estuary during the melt season.
CI  - Copyright (c) 2022 The Authors. Published by Elsevier Ltd.. All rights reserved.
FAU - Skogsberg, Emelie
AU  - Skogsberg E
AD  - University of Oslo, Department of Biosciences, Oslo, Norway; The University 
      Centre in Svalbard, Department of Arctic Biology, Longyearbyen, Norway.
FAU - McGovern, Maeve
AU  - McGovern M
AD  - Norwegian Institute for Water Research, Oslo, Norway; The Arctic University of 
      Norway, Tromso, Norway.
FAU - Poste, Amanda
AU  - Poste A
AD  - Norwegian Institute for Water Research, Oslo, Norway; The Arctic University of 
      Norway, Tromso, Norway.
FAU - Jonsson, Sofi
AU  - Jonsson S
AD  - Stockholm University, Department of Environmental Science, Stockholm, Sweden.
FAU - Arts, Michael T
AU  - Arts MT
AD  - Ryerson University, Department of Chemistry and Biology, Toronto, M5B 2K3, 
      Canada.
FAU - Varpe, Oystein
AU  - Varpe O
AD  - The University Centre in Svalbard, Department of Arctic Biology, Longyearbyen, 
      Norway; Norwegian Institute for Nature Research, Bergen, Norway; University of 
      Bergen, Department of Biological Sciences, Bergen, Norway.
FAU - Borga, Katrine
AU  - Borga K
AD  - University of Oslo, Department of Biosciences, Oslo, Norway. Electronic address: 
      katrine.borga@ibv.uio.no.
LA  - eng
PT  - Journal Article
DEP - 20220503
PL  - England
TA  - Environ Pollut
JT  - Environmental pollution (Barking, Essex : 1987)
JID - 8804476
RN  - 0 (Environmental Pollutants)
RN  - 0 (Lipids)
RN  - 0 (Water Pollutants, Chemical)
RN  - 7440-44-0 (Carbon)
RN  - FXS1BY2PGL (Mercury)
SB  - IM
MH  - *Amphipoda
MH  - Animals
MH  - Carbon
MH  - Environmental Monitoring
MH  - *Environmental Pollutants
MH  - Lipids
MH  - *Mercury/analysis
MH  - Phytoplankton
MH  - Seasons
MH  - *Water Pollutants, Chemical/analysis
OTO - NOTNLM
OT  - Bioaccumulation
OT  - Fatty acids
OT  - Gammarus setosus
OT  - Mercury
OT  - POPs
EDAT- 2022/05/07 06:00
MHDA- 2022/06/07 06:00
CRDT- 2022/05/06 19:25
PHST- 2021/08/18 00:00 [received]
PHST- 2022/03/09 00:00 [revised]
PHST- 2022/04/23 00:00 [accepted]
PHST- 2022/05/07 06:00 [pubmed]
PHST- 2022/06/07 06:00 [medline]
PHST- 2022/05/06 19:25 [entrez]
AID - S0269-7491(22)00575-9 [pii]
AID - 10.1016/j.envpol.2022.119361 [doi]
PST - ppublish
SO  - Environ Pollut. 2022 Aug 1;306:119361. doi: 10.1016/j.envpol.2022.119361. Epub 
      2022 May 3.