The demise of a major Acropora palmata bank-barrier reef off the southeast coast of Barbados, West Indies

I. G. Macintyre, P. W. Glynn, M. A. Toscano

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Formerly attributed to human activity, the demise of a bank-barrier reef off southeastern Barbados known as Cobbler's Reef is now thought to be largely the result of late Holocene, millennial-scale storm damage. Eleven surface samples of the reef crest coral Acropora palmata from nine sites along its 15-km length plot above the western Atlantic sea-level curve from 3,000 to 4,500 cal years ago (calibrated, calendar 14C years). These elevated clusters suggest that the reef complex suffered extensive storm damage during this period. The constant heavy wave action typical of this area and consequent low herbivory maintain conditions favoring algal growth, thereby limiting the reestablishment of post-storm reef framework. Site descriptions and detailed line surveys show a surface now composed mainly of reworked fragments of A. palmata covered with algal turf, macroalgae and crustose coralline algae. The reef contains no live A. palmata and only a few scattered coral colonies consisting primarily of Diploria spp. and Porites astreoides, along with the hydrocoral Millepora complanata. A few in situ framework dates plot at expected depths for normal coral growth below the sea-level curve during and after the period of intense storm activity. The most recent of these in situ samples are 320 and 400 cal years old. Corals of this late period likely succumbed to high turbidity associated with land clearance for sugarcane agriculture in the mid-1600s.

Original languageEnglish
Pages (from-to)765-773
Number of pages9
JournalCoral Reefs
Volume26
Issue number4
DOIs
StatePublished - Dec 1 2007

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Barbados
barrier reef
reefs
reef
storm damage
coasts
coral
corals
coast
sea level
algae
coralline alga
wave action
herbivory
coral reef
turbidity
human activity
Holocene
lawns and turf
agriculture

Keywords

  • Acropora palmata
  • Algal cover
  • Reef demise
  • Storm damage

ASJC Scopus subject areas

  • Aquatic Science

Cite this

The demise of a major Acropora palmata bank-barrier reef off the southeast coast of Barbados, West Indies. / Macintyre, I. G.; Glynn, P. W.; Toscano, M. A.

In: Coral Reefs, Vol. 26, No. 4, 01.12.2007, p. 765-773.

Research output: Contribution to journalArticle

Macintyre, I. G. ; Glynn, P. W. ; Toscano, M. A. / The demise of a major Acropora palmata bank-barrier reef off the southeast coast of Barbados, West Indies. In: Coral Reefs. 2007 ; Vol. 26, No. 4. pp. 765-773.
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