Provision of refugia and seeding with native bivalves can enhance biodiversity on vertical seawalls

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

5 Scopus Citations
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Author(s)

  • Juan C. Astudillo
  • Edward T.C. Lau
  • Matthew J. Perkins
  • Chi C. Lo
  • Tom C.H. Li
  • Chung S. Lam
  • Terence P.T. Ng
  • Elisabeth M.A. Strain
  • Peter D. Steinberg

Detail(s)

Original languageEnglish
Article number111578
Journal / PublicationMarine Pollution Bulletin
Volume160
Online published7 Sep 2020
Publication statusPublished - Nov 2020

Abstract

Recent studies have suggested that increasing habitat complexity of artificial seawalls by modifying surface heterogeneity could enhance exploitable habitat and therefore species richness and abundance. We tested the effects of adding complex tiles (with crevices/ledges) of different heterogeneity (i.e., flat tiles resembling the seawall vs. tiles with crevices of 2.5 cm or 5.0 cm depth) and seeding with native rock oysters, Saccostrea cuccullata (unseeded vs. seeded) on species richness and abundances of intertidal marine organisms on two vertical seawalls in Hong Kong. Tiles were affixed to the mid-intertidal zone of the seawalls for 12 months. The results showed that the tiles with crevices had greater species richness and cover of sessile epifauna than flat tiles. Seeding tiles with S. cuccullata also facilitated natural recruitment of the same species. Our results support the hypothesis that using eco-engineering to increase habitat complexity can enhance the biodiversity of intertidal marine organisms on seawalls.

Research Area(s)

  • Biodiversity conservation, Eco-engineering, Ecological restoration, Micro-habitat, Reclamation, Sustainable development

Citation Format(s)

Provision of refugia and seeding with native bivalves can enhance biodiversity on vertical seawalls. / Bradford, Thea E.; Astudillo, Juan C.; Lau, Edward T.C.; Perkins, Matthew J.; Lo, Chi C.; Li, Tom C.H.; Lam, Chung S.; Ng, Terence P.T.; Strain, Elisabeth M.A.; Steinberg, Peter D.; Leung, Kenneth M.Y.

In: Marine Pollution Bulletin, Vol. 160, 111578, 11.2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review