Mechanical robustness of the calcareous tubeworm Hydroides elegans: warming mitigates the adverse effects of ocean acidification

Chaoyi Li, Yuan Meng, Chong He, Vera B.S. Chan, Haimin Yao, V. Thiyagarajan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

15 Citations (Scopus)


Development of antifouling strategies requires knowledge of how fouling organisms would respond to climate change associated environmental stressors. Here, a calcareous tube built by the tubeworm, Hydroides elegans, was used as an example to evaluate the individual and interactive effects of ocean acidification (OA), warming and reduced salinity on the mechanical properties of a tube. Tubeworms produce a mechanically weaker tube with less resistance to simulated predator attack under OA (pH 7.8). Warming (29°C) increased tube volume, tube mineral density and the tube’s resistance to a simulated predatory attack. A weakening effect by OA did not make the removal of tubeworms easier except for the earliest stage, in which warming had the least effect. Reduced salinity (27 psu) did not affect tubes. This study showed that both mechanical analysis and computational modeling can be integrated with biofouling research to provide insights into how fouling communities might develop in future ocean conditions.
Original languageEnglish
Pages (from-to)191-204
Number of pages14
Issue number2
Publication statusPublished - 7 Feb 2016


  • Biofouling
  • calcification
  • climate change
  • finite element analysis
  • global warming
  • Hydroides elegans
  • micro-CT scanning
  • ocean acidification

ASJC Scopus subject areas

  • Aquatic Science
  • Applied Microbiology and Biotechnology
  • Water Science and Technology

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