NDLI: Hyperspectral and Physiological Analyses of Coral-Algal Interactions

Content Provider	PubMed Central
Author	Katie, Barott Smith, Jennifer Dinsdale, Elizabeth Mark, Hatay Sandin, Stuart Rohwer, Forest
Editor	Ahmed, Niyaz
Abstract	Space limitation leads to competition between benthic, sessile organisms on coral reefs. As a primary example, reef-building corals are in direct contact with each other and many different species and functional groups of algae. Here we characterize interactions between three coral genera and three algal functional groups using a combination of hyperspectral imaging and oxygen microprofiling. We also performed in situ interaction transects to quantify the relative occurrence of these interaction on coral reefs. These studies were conducted in the Southern Line Islands, home to some of the most remote and near-pristine reefs in the world. Our goal was to determine if different types of coral-coral and coral-algal interactions were characterized by unique fine-scale physiological signatures. This is the first report using hyperspectral imaging for characterization of marine benthic organisms at the micron scale and proved to be a valuable tool for discriminating among different photosynthetic organisms. Consistent patterns emerged in physiology across different types of competitive interactions. In cases where corals were in direct contact with turf or macroalgae, there was a zone of hypoxia and altered pigmentation on the coral. In contrast, interaction zones between corals and crustose coralline algae (CCA) were not hypoxic and the coral tissue was consistent across the colony. Our results suggest that at least two main characteristic coral interaction phenotypes exist: 1) hypoxia and coral tissue disruption, seen with interactions between corals and fleshy turf and/or some species of macroalgae, and 2) no hypoxia or tissue disruption, seen with interactions between corals and some species of CCA. Hyperspectral imaging in combination with oxygen profiling provided useful information on competitive interactions between benthic reef organisms, and demonstrated that some turf and fleshy macroalgae can be a constant source of stress for corals, while CCA are not.
Related Links	http://dx.doi.org/10.1371/journal.pone.0008043
Starting Page	8043
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	11
Volume Number	4
Language	English
Publisher	Public Library of Science
Publisher Date	2009-11-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Differential Responses of the Coral Host and Their Algal Symbiont to Thermal Stress

Simulated Macro-Algal Outbreak Triggers a Large-Scale Response on Coral Reefs

Impact of Light and Temperature on the Uptake of Algal Symbionts by Coral Juveniles

Impact of Herbivore Identity on Algal Succession and Coral Growth on a Caribbean Reef

Hyperspectral Sensing of Disease Stress in the Caribbean Reef-Building Coral, Orbicella faveolata - Perspectives for the Field of Coral Disease Monitoring

Specificity is rarely absolute in coral–algal symbiosis: implications for coral response to climate change

Species–specific interactions between algal endosymbionts and coral hosts define their bleaching response to heat and light stress

The Effect of Filamentous Turf Algal Removal on the Development of Gametes of the Coral Orbicella annularis

Major Cellular and Physiological Impacts of Ocean Acidification on a Reef Building Coral

Hyperspectral and Physiological Analyses of Coral-Algal Interactions

Similar Documents

Differential Responses of the Coral Host and Their Algal Symbiont to Thermal Stress

Simulated Macro-Algal Outbreak Triggers a Large-Scale Response on Coral Reefs

Impact of Light and Temperature on the Uptake of Algal Symbionts by Coral Juveniles

Impact of Herbivore Identity on Algal Succession and Coral Growth on a Caribbean Reef

Hyperspectral Sensing of Disease Stress in the Caribbean Reef-Building Coral, Orbicella faveolata - Perspectives for the Field of Coral Disease Monitoring

Specificity is rarely absolute in coral–algal symbiosis: implications for coral response to climate change

Species–specific interactions between algal endosymbionts and coral hosts define their bleaching response to heat and light stress

The Effect of Filamentous Turf Algal Removal on the Development of Gametes of the Coral Orbicella annularis

Major Cellular and Physiological Impacts of Ocean Acidification on a Reef Building Coral

Hyperspectral and Physiological Analyses of Coral-Algal Interactions