Effects of elevated pCO2 on epilithic and endolithic metabolism of reef carbonates

Aline Tribollet, M. J. Atkinson, Chris Langdon

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

We investigated effects of elevated partial pressure of CO2 (pCO2) on the metabolism of epilithic and endolithic phototrophic communities that colonized experimental coral blocks. Blocks of the massive coral Porites lobata were exposed to colonization by epilithic and endolithic organisms at an oceanic site in Kaneohe Bay (Hawaii) for 6 months, and then were transported to laboratory tanks. A bubbling system was used to maintain two treatments for 3 months, one at ambient pCO2 (400ppm) and the second at elevated pCO2 (750 ppm). Net photosynthetic rates of epilithic communities in the high pCO2 treatment, dominated by encrusting coralline algae, decreased by 35% while respiration rates remained constant. In contrast, metabolism of endolithic phototrophs, comprised of cyanobacteria and algae, was not significantly affected by the elevated pCO2 even though endoliths contributed about 63% to block production.

Original languageEnglish
Pages (from-to)2200-2208
Number of pages9
JournalGlobal Change Biology
Volume12
Issue number11
DOIs
StatePublished - Nov 1 2006

Fingerprint

Reefs
Carbonates
Metabolism
reef
metabolism
carbonate
coral
Algae
coralline alga
partial pressure
cyanobacterium
respiration
colonization
alga
Partial pressure
effect
rate

Keywords

  • Ambient atmospheric pCO
  • Coral reefs
  • Crustose coralline algae
  • Dead corals
  • Elevated atmospheric pCO
  • Endolithic microflora
  • Epiliths
  • Hawaii
  • Kaneohe Bay
  • Primary production

ASJC Scopus subject areas

  • Ecology
  • Global and Planetary Change
  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Effects of elevated pCO2 on epilithic and endolithic metabolism of reef carbonates. / Tribollet, Aline; Atkinson, M. J.; Langdon, Chris.

In: Global Change Biology, Vol. 12, No. 11, 01.11.2006, p. 2200-2208.

Research output: Contribution to journalArticle

Tribollet, Aline ; Atkinson, M. J. ; Langdon, Chris. / Effects of elevated pCO2 on epilithic and endolithic metabolism of reef carbonates. In: Global Change Biology. 2006 ; Vol. 12, No. 11. pp. 2200-2208.
@article{dc906ba0f9ed46aa9ec53985021bdb98,
title = "Effects of elevated pCO2 on epilithic and endolithic metabolism of reef carbonates",
abstract = "We investigated effects of elevated partial pressure of CO2 (pCO2) on the metabolism of epilithic and endolithic phototrophic communities that colonized experimental coral blocks. Blocks of the massive coral Porites lobata were exposed to colonization by epilithic and endolithic organisms at an oceanic site in Kaneohe Bay (Hawaii) for 6 months, and then were transported to laboratory tanks. A bubbling system was used to maintain two treatments for 3 months, one at ambient pCO2 (400ppm) and the second at elevated pCO2 (750 ppm). Net photosynthetic rates of epilithic communities in the high pCO2 treatment, dominated by encrusting coralline algae, decreased by 35{\%} while respiration rates remained constant. In contrast, metabolism of endolithic phototrophs, comprised of cyanobacteria and algae, was not significantly affected by the elevated pCO2 even though endoliths contributed about 63{\%} to block production.",
keywords = "Ambient atmospheric pCO, Coral reefs, Crustose coralline algae, Dead corals, Elevated atmospheric pCO, Endolithic microflora, Epiliths, Hawaii, Kaneohe Bay, Primary production",
author = "Aline Tribollet and Atkinson, {M. J.} and Chris Langdon",
year = "2006",
month = "11",
day = "1",
doi = "10.1111/j.1365-2486.2006.01249.x",
language = "English",
volume = "12",
pages = "2200--2208",
journal = "Global Change Biology",
issn = "1354-1013",
publisher = "Wiley-Blackwell",
number = "11",

}

TY - JOUR

T1 - Effects of elevated pCO2 on epilithic and endolithic metabolism of reef carbonates

AU - Tribollet, Aline

AU - Atkinson, M. J.

AU - Langdon, Chris

PY - 2006/11/1

Y1 - 2006/11/1

N2 - We investigated effects of elevated partial pressure of CO2 (pCO2) on the metabolism of epilithic and endolithic phototrophic communities that colonized experimental coral blocks. Blocks of the massive coral Porites lobata were exposed to colonization by epilithic and endolithic organisms at an oceanic site in Kaneohe Bay (Hawaii) for 6 months, and then were transported to laboratory tanks. A bubbling system was used to maintain two treatments for 3 months, one at ambient pCO2 (400ppm) and the second at elevated pCO2 (750 ppm). Net photosynthetic rates of epilithic communities in the high pCO2 treatment, dominated by encrusting coralline algae, decreased by 35% while respiration rates remained constant. In contrast, metabolism of endolithic phototrophs, comprised of cyanobacteria and algae, was not significantly affected by the elevated pCO2 even though endoliths contributed about 63% to block production.

AB - We investigated effects of elevated partial pressure of CO2 (pCO2) on the metabolism of epilithic and endolithic phototrophic communities that colonized experimental coral blocks. Blocks of the massive coral Porites lobata were exposed to colonization by epilithic and endolithic organisms at an oceanic site in Kaneohe Bay (Hawaii) for 6 months, and then were transported to laboratory tanks. A bubbling system was used to maintain two treatments for 3 months, one at ambient pCO2 (400ppm) and the second at elevated pCO2 (750 ppm). Net photosynthetic rates of epilithic communities in the high pCO2 treatment, dominated by encrusting coralline algae, decreased by 35% while respiration rates remained constant. In contrast, metabolism of endolithic phototrophs, comprised of cyanobacteria and algae, was not significantly affected by the elevated pCO2 even though endoliths contributed about 63% to block production.

KW - Ambient atmospheric pCO

KW - Coral reefs

KW - Crustose coralline algae

KW - Dead corals

KW - Elevated atmospheric pCO

KW - Endolithic microflora

KW - Epiliths

KW - Hawaii

KW - Kaneohe Bay

KW - Primary production

UR - http://www.scopus.com/inward/record.url?scp=33749821757&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33749821757&partnerID=8YFLogxK

U2 - 10.1111/j.1365-2486.2006.01249.x

DO - 10.1111/j.1365-2486.2006.01249.x

M3 - Article

AN - SCOPUS:33749821757

VL - 12

SP - 2200

EP - 2208

JO - Global Change Biology

JF - Global Change Biology

SN - 1354-1013

IS - 11

ER -