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Tytuł:
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Consistent exposure to microplastics induces age-specific physiological and biochemical changes in a marine mysid.
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Autorzy:
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Lee DH; Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, South Korea.
Lee S; Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, South Korea.
Rhee JS; Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, South Korea; Research Institute of Basic Sciences, Incheon National University, Incheon 22012, South Korea; Institute of Green Environmental Research Center, Incheon 21999, South Korea. Electronic address: .
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Źródło:
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Marine pollution bulletin [Mar Pollut Bull] 2021 Jan; Vol. 162, pp. 111850. Date of Electronic Publication: 2020 Nov 20.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Publication: 2003- : Oxford : Elsevier
Original Publication: London, Macmillan.
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MeSH Terms:
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Microplastics*
Water Pollutants, Chemical*/toxicity
Animals ; Crustacea ; Female ; Plastics/toxicity ; Polystyrenes
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Contributed Indexing:
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Keywords: 20–Hydroxyecdysone; Growth; Marine mysid; Microplastic; Oxidative stress; Population
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Substance Nomenclature:
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0 (Microplastics)
0 (Plastics)
0 (Polystyrenes)
0 (Water Pollutants, Chemical)
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Entry Date(s):
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Date Created: 20201123 Date Completed: 20210209 Latest Revision: 20210209
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Update Code:
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20240105
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DOI:
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10.1016/j.marpolbul.2020.111850
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PMID:
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33223134
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In this study, a marine mysid, Neomysis awatschensis, was exposed to 1 × 10 3 -5 × 10 5 particles mL -1 of polystyrene microbeads (1 and 10 μm). Exposure to microplastics (MPs) resulted in ingestion and egestion in feces. MPs exposure during the early stage resulted in mortality and oxidative stress, while more mature stages were increasingly tolerant to MPs. Feeding rates were inhibited by MPs, and age-specific oxidative stress was observed. Growth parameters were significantly affected by MPs with lower 20-hydroxyecdysone (20E) concentrations and longer intermolt durations. The number of hatched juveniles from females that were exposed to MPs was significantly lower than the control treatment, but no significant differences were observed between survival rates of newly hatched juveniles in the different treatments. Our results suggest that the detrimental effects of prolonged exposure to MPs could be age- and size-specific and harmful for the maintenance of mysid populations.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
