Publication Repository

Phenotypic plasticity of the coral Porites rus: Acclimatization responses to a turbid environment

Show simple item record

dc.contributor Univ Hawaii
dc.contributor Ctr Microscopy Characterisat & Anal
dc.contributor University Of Western Australia
dc.contributor University Of California Santa Barbara
dc.contributor University Of California System
dc.contributor Amer Museum Nat Hist
dc.contributor Univ Western Australia
dc.contributor University Of Hawaii System
dc.contributor Hawaii Inst Marine Biol
dc.contributor Univ Calif Santa Barbara
dc.contributor Csiro Marine & Atmospher Res
dc.contributor Uwa Oceans Inst
dc.contributor Australian Institute Of Marine Science
dc.contributor Ctr Biodivers & Conservat
dc.contributor Commonwealth Scientific & Industrial Research Organisation (csiro)
dc.contributor Dept Ecol Evolut & Marine Biol
dc.contributor American Museum Of Natural History (amnh)
dc.contributor Australian Inst Marine Sci
dc.contributor Australian Institute Of Marine Science (aims) en GATES, RUTH D. PADILLA-GAMINO, JACQUELINE L. HANSON, KATHARINE M. STAT, MICHAEL 2013-02-28T06:49:47Z 2017-03-21T01:18:40Z 2017-03-21T01:18:40Z 2019-05-09T01:06:57Z 2017-03-21T01:18:40Z 2013-02-28T06:49:47Z 2013-02-28T06:49:47Z 2019-05-09T01:06:57Z 2012-12-01
dc.identifier 9257 en
dc.identifier.citation Padilla-Gamino JL, Hanson KA, Stat M and Gates RD (2012) Phenotypic plasticity of the coral Porites rus: Acclimatization responses to a turbid environment. Journal of Experimental Marine Biology and Ecology. 434-435: 71-80. en
dc.identifier.issn 0022-0981
dc.description Link to abstract/full text - en
dc.description.abstract Increasing terrestrial runoff due to anthropogenic activities has become a major problem for coral reef ecosystems around the world. Turbidity due to runoff can reduce light availability (via nutrient enrichment and sedimentation) and influence the biology and ecology of coral reefs. In this study, we explored the physiology and acclimatization potential of Porites rus, a morphologically variable reef-building coral that is common in Moorea, French Polynesia, and a species that thrives across turbidity gradients driven by proximity to terrestrial runoff. We compared tissue biomass, Symbiodinium identity, Symbiodinium density, chlorophyll concentrations, and stable isotope ratios in plating and branching areas of colonies sampled in turbid and non-turbid environments. A reciprocal transplant experiment (RTE) was also employed to compare the acclimatization capacity of P.rus from turbid and non-turbid environments. Our results indicate that the physiological differences between plating and branching regions within individual colonies of P. rus are greater than those of colonies from turbid and non-turbid environments. Plating regions of colonies had larger tissue biomasses than branching areas, regardless of environment. Plating regions also had higher chlorophyll concentrations than branching regions at the non-turbid site. The densities and genetic identity of Symbiodinium were the same at both sites. At the turbid site, delta C-13 signatures were lower in plating than branching regions of the colony, suggesting they exhibit different rates of photosynthesis and/or capacity for heterotrophy. delta N-15 were similar across sites and between morphologies, indicating that colonies from both sites were feeding at similar trophic levels and utilizing similar nitrogen sources. The RTE showed that P. rus acclimatizes differently when transplanted to the turbid and non-turbid environments. Corals from the non-turbid site grew less when transplanted to the turbid site, whereas corals from the turbid site showed no change in growth regardless of transplant location. Coral fragments transplanted to the non-turbid site, had lower levels of chlorophyll per tissue area than fragments transplanted to the turbid site, most likely reflecting the higher light levels at this site. Thus, our results demonstrate that there is significant variation in the physiology of P.rus at the colony level (branching vs. plate regions) and at the site level (turbid vs. non-turbid) and that this species can acclimatize to changes in environmental conditions on short time scales (weeks). This acclimatization potential may play an important role in enabling this coral species to diversify strategies for energy acquisition within the colony and facilitate persistence in turbid environments. (C) 2012 Elsevier B.V. All rights reserved.
dc.description.sponsorship Thanks to P. Edmunds, N. Muehllehner, M. Johnson, and the Three Seas Program students especially Z. Boudreau and E. Sogin. Thanks to the anonymous reviewers for their helpful comments. JLPG was supported by the Mexican National Council for Science and Technology (CONACyT), the World Bank Coral Reef Targeted Research program and a Three Seas Teaching Fellowship. KMH was supported by a Three Seas Teaching Fellowship. MS was supported by a fellowship from the UWA-AIMS-CSIRO collaborative agreement. This research was supported by a U.S. National Science Foundation grant (OCE 04-17412) and generous gifts from the Gordon and Betty Moore Foundation. This work is a contribution of the Moorea Coral Reef (MCR) Long-term Ecological Research site, a component of the National Science Foundation's Long-term Ecological Research (LTER) Program. This is SOEST contribution number 8730 and HIMB contribution number 1513.
dc.description.uri en
dc.language English
dc.language en en
dc.relation.ispartof Journal of Experimental Marine Biology and Ecology - pages: 434-435: 71-80 en
dc.relation.ispartof Null
dc.subject Great-barrier-reef
dc.subject Water-flow
dc.subject Ecology
dc.subject Building Corals
dc.subject Acclimatization
dc.subject Environmental Sciences & Ecology
dc.subject Sediments
dc.subject Skeletal Delta-c-13
dc.subject Stable-isotopes
dc.subject Physiological Flexibility
dc.subject Particle Capture
dc.subject Marine & Freshwater Biology
dc.subject Light
dc.subject Morphological Plasticity
dc.subject Morphology
dc.subject Intra-colony Variation
dc.subject Madracis-mirabilis
dc.subject French-polynesia
dc.subject Scleractinian Coral
dc.title Phenotypic plasticity of the coral Porites rus: Acclimatization responses to a turbid environment
dc.type journal article en
dc.identifier.doi 10.1016/j.jembe.2012.08.006
dc.identifier.wos WOS:000310942300010

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search Publication


My Account