Adverse impacts of high-density microplastics on juvenile growth and behaviour of the endangered tri-spine horseshoe crab Tachypleus tridentatus

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

5 Scopus Citations
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Author(s)

  • James Kar-Hei Fang
  • Tsz Wan Tse
  • Elizaldy Acebu Maboloc
  • Ryan Kar-Long Leung
  • Matthew Ming-Lok Leung
  • Max Wang-Tang Wong
  • Apple Pui-Yi Chui
  • Youji Wang
  • Menghong Hu
  • Kit Yue Kwan

Detail(s)

Original languageEnglish
Article number114535
Journal / PublicationMarine Pollution Bulletin
Volume187
Online published16 Jan 2023
Publication statusPublished - Feb 2023

Link(s)

Abstract

The impacts of high-density microplastics, namely polyamine 6,6 (nylon), polymethyl methacrylate (PMMA) and polyethylene terephthalate (PET), on growth and behaviour of the endangered tri-spine horseshoe crab Tachypleus tridentatus were investigated for 100 days. Negative changes in wet weight and prosomal width of the juveniles were observed in all treatments of microplastics, but significant difference was only detected in prosomal width between control and PMMA. T. tridentatus became significantly less active upon exposure to nylon and PET. The extent of burrowing by T. tridentatus did not significantly differ among the treatments but was overall significantly reduced towards day 100. T. tridentatus exposed to PET significantly showed the lowest survival probability (30 %), compared to the other treatments (70–90 %). In conclusion, high-density microplastics compromised growth and behaviour of juvenile horseshoe crabs. Among the polymers that were tested, PET was considered more harmful and associated with higher mortality.

Research Area(s)

  • Hong Kong, Mortality, Mudflat, Nylon, PET, PMMA

Citation Format(s)

Adverse impacts of high-density microplastics on juvenile growth and behaviour of the endangered tri-spine horseshoe crab Tachypleus tridentatus. / Fang, James Kar-Hei; Tse, Tsz Wan; Maboloc, Elizaldy Acebu et al.
In: Marine Pollution Bulletin, Vol. 187, 114535, 02.2023.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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