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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Environmental Sources Human Health Effects Marine & Wildlife Sign in to save

Microplastics do not increase bioaccumulation of petroleum hydrocarbons in Arctic zooplankton but trigger feeding suppression under co-exposure conditions

The Science of The Total Environment 2020 46 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Sinja Rist, Rodrigo Almeda Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Rocío Rodríguez-Torres, Rodrigo Almeda Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Rodrigo Almeda Sinja Rist, Rocío Rodríguez-Torres, Sinja Rist, Rocío Rodríguez-Torres, Rodrigo Almeda Rodrigo Almeda Sinja Rist, Bjørn Henrik Hansen, Bjørn Henrik Hansen, Rodrigo Almeda Rodrigo Almeda Rodrigo Almeda Rodrigo Almeda Rodrigo Almeda Rodrigo Almeda Rodrigo Almeda Rodrigo Almeda Rodrigo Almeda Torkel Gissel Nielsen, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Rocío Rodríguez-Torres, Sinja Rist, Rocío Rodríguez-Torres, Rocío Rodríguez-Torres, Rocío Rodríguez-Torres, Rocío Rodríguez-Torres, Rocío Rodríguez-Torres, Rodrigo Almeda Torkel Gissel Nielsen, Rodrigo Almeda Rodrigo Almeda Torkel Gissel Nielsen, Rodrigo Almeda Torkel Gissel Nielsen, Rodrigo Almeda Rodrigo Almeda Rodrigo Almeda Rodrigo Almeda Rodrigo Almeda Rocío Rodríguez-Torres, Rocío Rodríguez-Torres, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Sinja Rist, Mie Hylstofte Sichlau Winding, Mie Hylstofte Sichlau Winding, Torkel Gissel Nielsen, Rodrigo Almeda Rodrigo Almeda Torkel Gissel Nielsen, Torkel Gissel Nielsen, Rodrigo Almeda Rodrigo Almeda Torkel Gissel Nielsen, Sinja Rist, Sinja Rist, Sinja Rist, Mie Hylstofte Sichlau Winding, Mie Hylstofte Sichlau Winding, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Mie Hylstofte Sichlau Winding, Mie Hylstofte Sichlau Winding, Torkel Gissel Nielsen, Sinja Rist, Peter Stief, Rodrigo Almeda Rodrigo Almeda Rodrigo Almeda Torkel Gissel Nielsen, Rodrigo Almeda Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Bjørn Henrik Hansen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Rodrigo Almeda Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Rodrigo Almeda Rocío Rodríguez-Torres, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Sinja Rist, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Sinja Rist, Rodrigo Almeda Bjørn Henrik Hansen, Rodrigo Almeda Rodrigo Almeda Torkel Gissel Nielsen, Torkel Gissel Nielsen, Rodrigo Almeda Bjørn Henrik Hansen, Rodrigo Almeda Rodrigo Almeda Rodrigo Almeda Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Sinja Rist, Rodrigo Almeda

Summary

Arctic copepods exposed to microplastics and crude oil together showed feeding suppression in up to 30% of individuals, though microplastics did not increase the amount of toxic PAH compounds absorbed from the oil. The findings suggest microplastics in Arctic seas may not amplify oil contamination in food webs during spills, but can still cause behavioral stress at high concentrations.

Polymers
PE
Models
Invertebrate other

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, 20.7 μm) 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 (1 μL L) and MPs (20 MPs mL). 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), MPs can trigger behavioral stress responses (e.g., feeding suppression) to oil pollution in zooplankton.

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