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The impact of polystyrene microplastics on feeding, function and fecundity in the marine copepod Calanus helgolandicus.
Environ Sci Technol. 2015 Jan 20; 49(2):1130-7.ES

Abstract

Microscopic plastic debris, termed “microplastics”, are of increasing environmental concern. Recent studies have demonstrated that a range of zooplankton, including copepods, can ingest microplastics. Copepods are a globally abundant class of zooplankton that form a key trophic link between primary producers and higher trophic marine organisms. Here we demonstrate that ingestion of microplastics can significantly alter the feeding capacity of the pelagic copepod Calanus helgolandicus. Exposed to 20 μm polystyrene beads (75 microplastics mL(–1)) and cultured algae ([250 μg C L(–1)) for 24 h, C. helgolandicus ingested 11% fewer algal cells (P = 0.33) and 40% less carbon biomass (P < 0.01). There was a net downward shift in the mean size of algal prey consumed (P < 0.001), with a 3.6 fold increase in ingestion rate for the smallest size class of algal prey (11.6–12.6 μm), suggestive of postcapture or postingestion rejection. Prolonged exposure to polystyrene microplastics significantly decreased reproductive output, but there were no significant differences in egg production rates, respiration or survival. We constructed a conceptual energetic (carbon) budget showing that microplastic-exposed copepods suffer energetic depletion over time. We conclude that microplastics impede feeding in copepods, which over time could lead to sustained reductions in ingested carbon biomass.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25563688

Citation

Cole, Matthew, et al. "The Impact of Polystyrene Microplastics On Feeding, Function and Fecundity in the Marine Copepod Calanus Helgolandicus." Environmental Science & Technology, vol. 49, no. 2, 2015, pp. 1130-7.
Cole M, Lindeque P, Fileman E, et al. The impact of polystyrene microplastics on feeding, function and fecundity in the marine copepod Calanus helgolandicus. Environ Sci Technol. 2015;49(2):1130-7.
Cole, M., Lindeque, P., Fileman, E., Halsband, C., & Galloway, T. S. (2015). The impact of polystyrene microplastics on feeding, function and fecundity in the marine copepod Calanus helgolandicus. Environmental Science & Technology, 49(2), 1130-7.
Cole M, et al. The Impact of Polystyrene Microplastics On Feeding, Function and Fecundity in the Marine Copepod Calanus Helgolandicus. Environ Sci Technol. 2015 Jan 20;49(2):1130-7. PubMed PMID: 25563688.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The impact of polystyrene microplastics on feeding, function and fecundity in the marine copepod Calanus helgolandicus. AU - Cole,Matthew, AU - Lindeque,Pennie, AU - Fileman,Elaine, AU - Halsband,Claudia, AU - Galloway,Tamara S, PY - 2015/1/8/entrez PY - 2015/1/8/pubmed PY - 2015/12/15/medline SP - 1130 EP - 7 JF - Environmental science & technology JO - Environ. Sci. Technol. VL - 49 IS - 2 N2 - Microscopic plastic debris, termed “microplastics”, are of increasing environmental concern. Recent studies have demonstrated that a range of zooplankton, including copepods, can ingest microplastics. Copepods are a globally abundant class of zooplankton that form a key trophic link between primary producers and higher trophic marine organisms. Here we demonstrate that ingestion of microplastics can significantly alter the feeding capacity of the pelagic copepod Calanus helgolandicus. Exposed to 20 μm polystyrene beads (75 microplastics mL(–1)) and cultured algae ([250 μg C L(–1)) for 24 h, C. helgolandicus ingested 11% fewer algal cells (P = 0.33) and 40% less carbon biomass (P < 0.01). There was a net downward shift in the mean size of algal prey consumed (P < 0.001), with a 3.6 fold increase in ingestion rate for the smallest size class of algal prey (11.6–12.6 μm), suggestive of postcapture or postingestion rejection. Prolonged exposure to polystyrene microplastics significantly decreased reproductive output, but there were no significant differences in egg production rates, respiration or survival. We constructed a conceptual energetic (carbon) budget showing that microplastic-exposed copepods suffer energetic depletion over time. We conclude that microplastics impede feeding in copepods, which over time could lead to sustained reductions in ingested carbon biomass. SN - 1520-5851 UR - https://www.unboundmedicine.com/medline/citation/25563688/The_impact_of_polystyrene_microplastics_on_feeding_function_and_fecundity_in_the_marine_copepod_Calanus_helgolandicus_ L2 - https://dx.doi.org/10.1021/es504525u DB - PRIME DP - Unbound Medicine ER -