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July 8, 2026Coral ReefsOpen Access

Crustose coralline algae, algal turfs, and coral reef calcification

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Authors

STSterling B. TebbettSLSD LingDBDavid R. Bellwood

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Overview

Randomized trial examines CCA calcification rates affecting reef growth, suggesting algal turfs hinder CCA growth.

Key Points

  • To quantify the calcification rates of crustose coralline algae and assess their relation to algal turf dominance across various reef sites.
  • Examined 10 reef sites around Lizard Island, Great Barrier Reef, Australia.
  • Used calcification accretion units (CAUs) to quantify CCA carbonate production on light-exposed tiles.
  • Related calcification rates to CCA cover and epilithic algal ratio on tiles and adjacent substrata.
  • CCA calcification rates varied from 2.1 to 13.2 g 100 cm −2 year −1 across sites.
  • Higher CCA cover correlated with increased calcification rates, while turf dominance limited CCA growth.
  • Site-level calcification estimates from tiles were lower when accounting for on-reef benthic cover.

Cite This Study

Tebbett et al. (2026) studied this question.

synapsesocial.com/papers/6a4de8a7d2ea289ef62834d7https://doi.org/10.1007/s00338-026-02917-9
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Also Consider

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