Moving to 3D: relationships between coral planar area, surface area and volume

House, Jenny E. and Brambilla, Viviana and Bidaut, Luc and Christie, Alec P. and Pizarro, Oscar and Madin, Joshua S. and Dornelas, Maria (2018) Moving to 3D: relationships between coral planar area, surface area and volume. PeerJ . ISSN 2167-8359

Full content URL: https://peerj.com/articles/4280/

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Abstract

Coral reefs are a valuable and vulnerable marine ecosystem. The structure of coral reefs influences their health and ability to fulfill ecosystem functions and services. However,
monitoring reef corals largely relies on 1D or 2D estimates of coral cover and abundance
that overlook change in ecologically significant aspects of the reefs because they do not
incorporate vertical or volumetric information. This study explores the relationship
between 2D and 3D metrics of coral size. We show that surface area and volume scale
consistently with planar area, albeit with morphotype specific conversion parameters.
We use a photogrammetric approach using open-source software to estimate the ability
of photogrammetry to provide measurement estimates of corals in 3D. Technological
developments have made photogrammetry a valid and practical technique for studying
coral reefs. We anticipate that these techniques for moving coral research from 2D into
3D will facilitate answering ecological questions by incorporating the 3rd dimension
into monitoring.

Additional Information:The final published version of this article can be accessed online at https://peerj.com/articles/4280/
Keywords:Coral reef, Scleractinia, Morphology, Scaling, Growth form, Biodiversity, Ecology, Marine Biology
Subjects:C Biological Sciences > C161 Marine Biology
C Biological Sciences > C180 Ecology
C Biological Sciences > C181 Biodiversity
Divisions:College of Science > School of Computer Science
ID Code:33620
Deposited On:17 Oct 2018 10:03

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