Effects of light and elevated pCO2 on the growth and photochemical efficiency of Acropora cervicornis

I. C. Enochs, D. P. Manzello, R. Carlton, S. Schopmeyer, R. van Hooidonk, Diego Lirman

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The effects of light and elevated pCO2 on the growth and photochemical efficiency of the critically endangered staghorn coral, Acropora cervicornis, were examined experimentally. Corals were subjected to high and low treatments of CO2 and light in a fully crossed design and monitored using 3D scanning and buoyant weight methodologies. Calcification rates, linear extension, as well as colony surface area and volume of A. cervicornis were highly dependent on light intensity. At pCO2 levels projected to occur by the end of the century from ocean acidification (OA), A. cervicornis exhibited depressed calcification, but no change in linear extension. Photochemical efficiency (F v/Fm) was higher at low light, but unaffected by CO2. Amelioration of OA-depressed calcification under high-light treatments was not observed, and we suggest that the high-light intensity necessary to reach saturation of photosynthesis and calcification in A. cervicornis may limit the effectiveness of this potentially protective mechanism in this species. High CO2 causes depressed skeletal density, but not linear extension, illustrating that the measurement of extension by itself is inadequate to detect CO2 impacts. The skeletal integrity of A. cervicornis will be impaired by OA, which may further reduce the resilience of the already diminished populations of this endangered species.

Original languageEnglish
Pages (from-to)477-485
Number of pages9
JournalCoral Reefs
Volume33
Issue number2
DOIs
StatePublished - Jan 1 2014

Fingerprint

calcification
light intensity
coral
endangered species
photosynthesis
remediation
surface area
saturation
methodology
effect
Acropora cervicornis
corals
ocean acidification

Keywords

  • Acropora cervicornis
  • Calcification
  • Light
  • Ocean acidification

ASJC Scopus subject areas

  • Aquatic Science

Cite this

Effects of light and elevated pCO2 on the growth and photochemical efficiency of Acropora cervicornis. / Enochs, I. C.; Manzello, D. P.; Carlton, R.; Schopmeyer, S.; van Hooidonk, R.; Lirman, Diego.

In: Coral Reefs, Vol. 33, No. 2, 01.01.2014, p. 477-485.

Research output: Contribution to journalArticle

Enochs, IC, Manzello, DP, Carlton, R, Schopmeyer, S, van Hooidonk, R & Lirman, D 2014, 'Effects of light and elevated pCO2 on the growth and photochemical efficiency of Acropora cervicornis', Coral Reefs, vol. 33, no. 2, pp. 477-485. https://doi.org/10.1007/s00338-014-1132-7
Enochs, I. C. ; Manzello, D. P. ; Carlton, R. ; Schopmeyer, S. ; van Hooidonk, R. ; Lirman, Diego. / Effects of light and elevated pCO2 on the growth and photochemical efficiency of Acropora cervicornis. In: Coral Reefs. 2014 ; Vol. 33, No. 2. pp. 477-485.
@article{30a02ba7f337493d8a3ed489ad0b3d4a,
title = "Effects of light and elevated pCO2 on the growth and photochemical efficiency of Acropora cervicornis",
abstract = "The effects of light and elevated pCO2 on the growth and photochemical efficiency of the critically endangered staghorn coral, Acropora cervicornis, were examined experimentally. Corals were subjected to high and low treatments of CO2 and light in a fully crossed design and monitored using 3D scanning and buoyant weight methodologies. Calcification rates, linear extension, as well as colony surface area and volume of A. cervicornis were highly dependent on light intensity. At pCO2 levels projected to occur by the end of the century from ocean acidification (OA), A. cervicornis exhibited depressed calcification, but no change in linear extension. Photochemical efficiency (F v/Fm) was higher at low light, but unaffected by CO2. Amelioration of OA-depressed calcification under high-light treatments was not observed, and we suggest that the high-light intensity necessary to reach saturation of photosynthesis and calcification in A. cervicornis may limit the effectiveness of this potentially protective mechanism in this species. High CO2 causes depressed skeletal density, but not linear extension, illustrating that the measurement of extension by itself is inadequate to detect CO2 impacts. The skeletal integrity of A. cervicornis will be impaired by OA, which may further reduce the resilience of the already diminished populations of this endangered species.",
keywords = "Acropora cervicornis, Calcification, Light, Ocean acidification",
author = "Enochs, {I. C.} and Manzello, {D. P.} and R. Carlton and S. Schopmeyer and {van Hooidonk}, R. and Diego Lirman",
year = "2014",
month = "1",
day = "1",
doi = "10.1007/s00338-014-1132-7",
language = "English",
volume = "33",
pages = "477--485",
journal = "Coral Reefs",
issn = "0722-4028",
publisher = "Springer Verlag",
number = "2",

}

TY - JOUR

T1 - Effects of light and elevated pCO2 on the growth and photochemical efficiency of Acropora cervicornis

AU - Enochs, I. C.

AU - Manzello, D. P.

AU - Carlton, R.

AU - Schopmeyer, S.

AU - van Hooidonk, R.

AU - Lirman, Diego

PY - 2014/1/1

Y1 - 2014/1/1

N2 - The effects of light and elevated pCO2 on the growth and photochemical efficiency of the critically endangered staghorn coral, Acropora cervicornis, were examined experimentally. Corals were subjected to high and low treatments of CO2 and light in a fully crossed design and monitored using 3D scanning and buoyant weight methodologies. Calcification rates, linear extension, as well as colony surface area and volume of A. cervicornis were highly dependent on light intensity. At pCO2 levels projected to occur by the end of the century from ocean acidification (OA), A. cervicornis exhibited depressed calcification, but no change in linear extension. Photochemical efficiency (F v/Fm) was higher at low light, but unaffected by CO2. Amelioration of OA-depressed calcification under high-light treatments was not observed, and we suggest that the high-light intensity necessary to reach saturation of photosynthesis and calcification in A. cervicornis may limit the effectiveness of this potentially protective mechanism in this species. High CO2 causes depressed skeletal density, but not linear extension, illustrating that the measurement of extension by itself is inadequate to detect CO2 impacts. The skeletal integrity of A. cervicornis will be impaired by OA, which may further reduce the resilience of the already diminished populations of this endangered species.

AB - The effects of light and elevated pCO2 on the growth and photochemical efficiency of the critically endangered staghorn coral, Acropora cervicornis, were examined experimentally. Corals were subjected to high and low treatments of CO2 and light in a fully crossed design and monitored using 3D scanning and buoyant weight methodologies. Calcification rates, linear extension, as well as colony surface area and volume of A. cervicornis were highly dependent on light intensity. At pCO2 levels projected to occur by the end of the century from ocean acidification (OA), A. cervicornis exhibited depressed calcification, but no change in linear extension. Photochemical efficiency (F v/Fm) was higher at low light, but unaffected by CO2. Amelioration of OA-depressed calcification under high-light treatments was not observed, and we suggest that the high-light intensity necessary to reach saturation of photosynthesis and calcification in A. cervicornis may limit the effectiveness of this potentially protective mechanism in this species. High CO2 causes depressed skeletal density, but not linear extension, illustrating that the measurement of extension by itself is inadequate to detect CO2 impacts. The skeletal integrity of A. cervicornis will be impaired by OA, which may further reduce the resilience of the already diminished populations of this endangered species.

KW - Acropora cervicornis

KW - Calcification

KW - Light

KW - Ocean acidification

UR - http://www.scopus.com/inward/record.url?scp=84900797329&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84900797329&partnerID=8YFLogxK

U2 - 10.1007/s00338-014-1132-7

DO - 10.1007/s00338-014-1132-7

M3 - Article

AN - SCOPUS:84900797329

VL - 33

SP - 477

EP - 485

JO - Coral Reefs

JF - Coral Reefs

SN - 0722-4028

IS - 2

ER -