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Low microalgae availability increases the ingestion rates and potential effects of microplastics on marine copepod Pseudodiaptomus annandalei.
Mar Pollut Bull. 2020 Mar; 152:110919.MP

Abstract

Microplastics have aroused great concern for their potential threats to marine organisms. This study investigated the interaction between three sizes of microplastics (0.5, 2, and 10 μm) and the marine copepod Pseudodiaptomus annandalei under two different microalgae concentrations (1 × 103 and 1 × 105 cells/mL). The results revealed that low microalgae supply increased microplastic ingestion through enhancing the encounter rates, and moreover increased the retention time of 0.5 μm microplastics. When the microalgae concentration was 1 × 103 cells/mL, 0.5 μm microplastics could be observed in the copepods after depuration in clear seawater for 24 h, but almost totally excreted at 1 × 105 cells/mL of microalgae. In addition, 0.5 μm microplastics induced significant effects on the ingestion of microalgae by P. annandalei both after 24 h of exposure and depuration. These results suggest that low microalgae availability may increase the ingestion and retention of microplastics in marine copepods, which might increase the ecological risk of microplastics.

Authors+Show Affiliations

College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China. Electronic address: wangjun@ouc.edu.cn.School of Biological & Chemical Engineering, Qingdao Technical College, Qingdao 266555, China.College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China. Electronic address: rusg@ouc.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32479292

Citation

Cheng, Yuqi, et al. "Low Microalgae Availability Increases the Ingestion Rates and Potential Effects of Microplastics On Marine Copepod Pseudodiaptomus Annandalei." Marine Pollution Bulletin, vol. 152, 2020, p. 110919.
Cheng Y, Wang J, Yi X, et al. Low microalgae availability increases the ingestion rates and potential effects of microplastics on marine copepod Pseudodiaptomus annandalei. Mar Pollut Bull. 2020;152:110919.
Cheng, Y., Wang, J., Yi, X., Li, L., Liu, X., & Ru, S. (2020). Low microalgae availability increases the ingestion rates and potential effects of microplastics on marine copepod Pseudodiaptomus annandalei. Marine Pollution Bulletin, 152, 110919. https://doi.org/10.1016/j.marpolbul.2020.110919
Cheng Y, et al. Low Microalgae Availability Increases the Ingestion Rates and Potential Effects of Microplastics On Marine Copepod Pseudodiaptomus Annandalei. Mar Pollut Bull. 2020;152:110919. PubMed PMID: 32479292.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Low microalgae availability increases the ingestion rates and potential effects of microplastics on marine copepod Pseudodiaptomus annandalei. AU - Cheng,Yuqi, AU - Wang,Jun, AU - Yi,Xiaoyan, AU - Li,Lianxu, AU - Liu,Xudong, AU - Ru,Shaoguo, Y1 - 2020/02/17/ PY - 2019/12/16/received PY - 2020/01/18/revised PY - 2020/01/18/accepted PY - 2020/6/2/entrez PY - 2020/6/2/pubmed PY - 2020/7/11/medline KW - Ingestion KW - Marine copepod KW - Microalgae concentration KW - Microplastic KW - Residence time SP - 110919 EP - 110919 JF - Marine pollution bulletin JO - Mar. Pollut. Bull. VL - 152 N2 - Microplastics have aroused great concern for their potential threats to marine organisms. This study investigated the interaction between three sizes of microplastics (0.5, 2, and 10 μm) and the marine copepod Pseudodiaptomus annandalei under two different microalgae concentrations (1 × 103 and 1 × 105 cells/mL). The results revealed that low microalgae supply increased microplastic ingestion through enhancing the encounter rates, and moreover increased the retention time of 0.5 μm microplastics. When the microalgae concentration was 1 × 103 cells/mL, 0.5 μm microplastics could be observed in the copepods after depuration in clear seawater for 24 h, but almost totally excreted at 1 × 105 cells/mL of microalgae. In addition, 0.5 μm microplastics induced significant effects on the ingestion of microalgae by P. annandalei both after 24 h of exposure and depuration. These results suggest that low microalgae availability may increase the ingestion and retention of microplastics in marine copepods, which might increase the ecological risk of microplastics. SN - 1879-3363 UR - https://www.unboundmedicine.com/medline/citation/32479292/Low_microalgae_availability_increases_the_ingestion_rates_and_potential_effects_of_microplastics_on_marine_copepod_Pseudodiaptomus_annandalei_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0025-326X(20)30037-0 DB - PRIME DP - Unbound Medicine ER -