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Effects of polystyrene microplastics on larval development, settlement, and metamorphosis of the intertidal barnacle Amphibalanus amphitrite.
Ecotoxicol Environ Saf. 2020 May; 194:110362.EE

Abstract

The effects of microplastic on mortality and sublethal responses on larval development of meroplankton are still largely unknown. Present study investigated the effects of four sizes of virgin spherical polystyrene microplastics (diameter 1.7, 6.8, 10.4, 19.0 μm) on naupliar (stage II-VI) and cypris larvae of barnacle Amphibalanus amphitrite at environmentally relevant concentrations (1, 10, 100, 1000 beads mL-1). Essential life-history traits, including mortality, development time and rates of growth, settling, and metamorphosis were measured throughout the entire larval development. Feeding experiments were conducted to evaluate if microplastics decreased naupliar feeding due to physical impacts or selective feeding of nauplii. The results showed that A. amphitrite stage II nauplii were able to ingest and efficiently egest all sizes of microplastics. All the life-history endpoints measured were not significantly affected by all sizes of microplastics at any concentration tested. Presence of all sizes of microplastics did not cause physical interference on naupliar feeding and all stages of nauplius larvae (stage III-VI) did not selectively feed on microplastics. However, the feeding ability of stage III nauplius appeared to be affected by 1.7 μm at 1000 beads mL-1 which was possibly due to individual variations rather than microplastics' impacts. Overall, the full larval development of barnacle A. amphitrite was not affected by microplastics at environmentally relevant concentrations under laboratory condition.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Yu SP
Biodiversity Research Center, Academia Sinica: 128, Academia Road, Section 2, Nankang, Taipei 11529, Taiwan; Institute of Ecology and Evolutionary Biology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 106, Taiwan. Electronic address: az1357954@gate.sinica.edu.tw.
Chan BKK
Biodiversity Research Center, Academia Sinica: 128, Academia Road, Section 2, Nankang, Taipei 11529, Taiwan. Electronic address: chankk@gate.sinica.edu.tw.

MeSH

AnimalsLarvaMetamorphosis, BiologicalMicroplasticsPlasticsPolystyrenesThoracicaToxicity Tests

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32171964

Citation

Yu, Sing-Pei, and Benny Kwok Kan Chan. "Effects of Polystyrene Microplastics On Larval Development, Settlement, and Metamorphosis of the Intertidal Barnacle Amphibalanus Amphitrite." Ecotoxicology and Environmental Safety, vol. 194, 2020, p. 110362.
Yu SP, Chan BKK. Effects of polystyrene microplastics on larval development, settlement, and metamorphosis of the intertidal barnacle Amphibalanus amphitrite. Ecotoxicol Environ Saf. 2020;194:110362.
Yu, S. P., & Chan, B. K. K. (2020). Effects of polystyrene microplastics on larval development, settlement, and metamorphosis of the intertidal barnacle Amphibalanus amphitrite. Ecotoxicology and Environmental Safety, 194, 110362. https://doi.org/10.1016/j.ecoenv.2020.110362
Yu SP, Chan BKK. Effects of Polystyrene Microplastics On Larval Development, Settlement, and Metamorphosis of the Intertidal Barnacle Amphibalanus Amphitrite. Ecotoxicol Environ Saf. 2020;194:110362. PubMed PMID: 32171964.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of polystyrene microplastics on larval development, settlement, and metamorphosis of the intertidal barnacle Amphibalanus amphitrite. AU - Yu,Sing-Pei, AU - Chan,Benny Kwok Kan, Y1 - 2020/03/12/ PY - 2019/11/18/received PY - 2020/01/22/revised PY - 2020/02/20/accepted PY - 2020/3/17/pubmed PY - 2020/6/2/medline PY - 2020/3/16/entrez KW - Barnacle larvae KW - Larval development KW - Metamorphosis KW - Microplastic KW - Mortality KW - Settlement SP - 110362 EP - 110362 JF - Ecotoxicology and environmental safety JO - Ecotoxicol Environ Saf VL - 194 N2 - The effects of microplastic on mortality and sublethal responses on larval development of meroplankton are still largely unknown. Present study investigated the effects of four sizes of virgin spherical polystyrene microplastics (diameter 1.7, 6.8, 10.4, 19.0 μm) on naupliar (stage II-VI) and cypris larvae of barnacle Amphibalanus amphitrite at environmentally relevant concentrations (1, 10, 100, 1000 beads mL-1). Essential life-history traits, including mortality, development time and rates of growth, settling, and metamorphosis were measured throughout the entire larval development. Feeding experiments were conducted to evaluate if microplastics decreased naupliar feeding due to physical impacts or selective feeding of nauplii. The results showed that A. amphitrite stage II nauplii were able to ingest and efficiently egest all sizes of microplastics. All the life-history endpoints measured were not significantly affected by all sizes of microplastics at any concentration tested. Presence of all sizes of microplastics did not cause physical interference on naupliar feeding and all stages of nauplius larvae (stage III-VI) did not selectively feed on microplastics. However, the feeding ability of stage III nauplius appeared to be affected by 1.7 μm at 1000 beads mL-1 which was possibly due to individual variations rather than microplastics' impacts. Overall, the full larval development of barnacle A. amphitrite was not affected by microplastics at environmentally relevant concentrations under laboratory condition. SN - 1090-2414 UR - https://www.unboundmedicine.com/medline/citation/32171964/Effects_of_polystyrene_microplastics_on_larval_development_settlement_and_metamorphosis_of_the_intertidal_barnacle_Amphibalanus_amphitrite_ DB - PRIME DP - Unbound Medicine ER -