Microplastics do not increase bioaccumulation of petroleum hydrocarbons in Arctic zooplankton but trigger feeding suppression under co-exposure conditions
Arctic sea ice has alarmingly high concentrations of microplastics (MPs). Additionally, sea ice reduction in the Arctic is opening new opportunities for the oil and maritime industries, which could increase oil pollution in the region. Yet knowledge of the effects of co-exposure to MPs and crude oil...
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Online Access: | https://doi.org/10.1016/j.scitotenv.2020.141264 |
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ftzenodo:oai:zenodo.org:4985131 2024-09-15T17:52:29+00:00 Microplastics do not increase bioaccumulation of petroleum hydrocarbons in Arctic zooplankton but trigger feeding suppression under co-exposure conditions R. Almeda R. Rodriguez-Torres S. Rist M.H.S. Winding P. Stief B.H. Hansen T. Gissel Nielsen 2021-01-10 https://doi.org/10.1016/j.scitotenv.2020.141264 unknown Zenodo https://zenodo.org/communities/eu https://doi.org/10.1016/j.scitotenv.2020.141264 oai:zenodo.org:4985131 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode info:eu-repo/semantics/article 2021 ftzenodo https://doi.org/10.1016/j.scitotenv.2020.141264 2024-07-26T05:48:02Z Arctic sea ice has alarmingly high concentrations of microplastics (MPs). Additionally, sea ice reduction in the Arctic is opening new opportunities for the oil and maritime industries, which could increase oil pollution in the region. Yet knowledge of the effects of co-exposure to MPs and crude oil on Arctic zooplankton is lacking. We tested the influence of MPs (polyethylene, 20.7μm) on polycyclic aromatic hydrocarbon (PAH) bioaccumulation and oil toxicity in the key arctic copepod Calanus hyperboreus after exposure to oil with and without dispersant. Up to 30% of the copepods stopped feeding and fecal pellet production rates were reduced after co-exposure to oil (1μLL −1 ) and MPs (20 MPs mL −1 ). The PAH body burden was ~3 times higher in feeding than in non-feeding copepods. Copepods ingested both MPs and crude oil droplets. MPs did not influence bioaccumulation of PAHs in copepods or their fecal pellets, but chemical dispersant increased bioaccumulation, especially of ≥4 ring-PAHs. Our results suggest that MPs do not act as vectors of PAHs in Arctic marine food webs after oil spills, but, at high concentrations (20 MPs mL −1 ), MPs can trigger behavioral stress responses (e.g., feeding suppression) to oil pollution in zooplankton. Article in Journal/Newspaper Arctic copepod Calanus hyperboreus Sea ice Zooplankton Copepods Zenodo Science of The Total Environment 751 141264 |
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Arctic sea ice has alarmingly high concentrations of microplastics (MPs). Additionally, sea ice reduction in the Arctic is opening new opportunities for the oil and maritime industries, which could increase oil pollution in the region. Yet knowledge of the effects of co-exposure to MPs and crude oil on Arctic zooplankton is lacking. We tested the influence of MPs (polyethylene, 20.7μm) on polycyclic aromatic hydrocarbon (PAH) bioaccumulation and oil toxicity in the key arctic copepod Calanus hyperboreus after exposure to oil with and without dispersant. Up to 30% of the copepods stopped feeding and fecal pellet production rates were reduced after co-exposure to oil (1μLL −1 ) and MPs (20 MPs mL −1 ). The PAH body burden was ~3 times higher in feeding than in non-feeding copepods. Copepods ingested both MPs and crude oil droplets. MPs did not influence bioaccumulation of PAHs in copepods or their fecal pellets, but chemical dispersant increased bioaccumulation, especially of ≥4 ring-PAHs. Our results suggest that MPs do not act as vectors of PAHs in Arctic marine food webs after oil spills, but, at high concentrations (20 MPs mL −1 ), MPs can trigger behavioral stress responses (e.g., feeding suppression) to oil pollution in zooplankton. |
format |
Article in Journal/Newspaper |
author |
R. Almeda R. Rodriguez-Torres S. Rist M.H.S. Winding P. Stief B.H. Hansen T. Gissel Nielsen |
spellingShingle |
R. Almeda R. Rodriguez-Torres S. Rist M.H.S. Winding P. Stief B.H. Hansen T. Gissel Nielsen Microplastics do not increase bioaccumulation of petroleum hydrocarbons in Arctic zooplankton but trigger feeding suppression under co-exposure conditions |
author_facet |
R. Almeda R. Rodriguez-Torres S. Rist M.H.S. Winding P. Stief B.H. Hansen T. Gissel Nielsen |
author_sort |
R. Almeda |
title |
Microplastics do not increase bioaccumulation of petroleum hydrocarbons in Arctic zooplankton but trigger feeding suppression under co-exposure conditions |
title_short |
Microplastics do not increase bioaccumulation of petroleum hydrocarbons in Arctic zooplankton but trigger feeding suppression under co-exposure conditions |
title_full |
Microplastics do not increase bioaccumulation of petroleum hydrocarbons in Arctic zooplankton but trigger feeding suppression under co-exposure conditions |
title_fullStr |
Microplastics do not increase bioaccumulation of petroleum hydrocarbons in Arctic zooplankton but trigger feeding suppression under co-exposure conditions |
title_full_unstemmed |
Microplastics do not increase bioaccumulation of petroleum hydrocarbons in Arctic zooplankton but trigger feeding suppression under co-exposure conditions |
title_sort |
microplastics do not increase bioaccumulation of petroleum hydrocarbons in arctic zooplankton but trigger feeding suppression under co-exposure conditions |
publisher |
Zenodo |
publishDate |
2021 |
url |
https://doi.org/10.1016/j.scitotenv.2020.141264 |
genre |
Arctic copepod Calanus hyperboreus Sea ice Zooplankton Copepods |
genre_facet |
Arctic copepod Calanus hyperboreus Sea ice Zooplankton Copepods |
op_relation |
https://zenodo.org/communities/eu https://doi.org/10.1016/j.scitotenv.2020.141264 oai:zenodo.org:4985131 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.1016/j.scitotenv.2020.141264 |
container_title |
Science of The Total Environment |
container_volume |
751 |
container_start_page |
141264 |
_version_ |
1810294503222804480 |