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Journal of Tropical Oceanography >

2015 , Vol. 34 >Issue 1: 71 - 76

DOI: https://doi.org/10.11978/j.issn.1009-5470.2015.01.010

Marine Biology

Analysis of reflectance by Acropora hyacinthus in Luhuitou, Sanya of the South China Sea

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  • 1. Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301;
    2. University of Chinese Academy of Sciences, Beijing 100049;
    3. National Experiment Station of Tropical Marine Biology, Hainan Island, Sanya 572000;
    4. State Key Laboratory of Tropical Oceanography (South China Sea Institute of Oceanology, Chinese Academy of Sciences), Guangzhou 510301; 5. Sanya Institute of Deep-Sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000;

Received date: 2013-08-23

  Revised date: 2014-06-19

  Online published: 2015-02-10

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Abstract

An application of remote sensing in monitoring and management of coral was developed with reflectance identification of coral substrate. Some foreign scholars have discriminated reflectance of coral substrate, while the reflectance of different coral substrate discrimination in the South China Sea did not exist. This study explored reflectance of Acropora hyacinthus at Luhuitou Sanya using spectrum instrument. Healthy Acropora hyacinthus exhibited positive reflectance features at 570, 600 and 650 nm. Reflectance by dead Acropora hyacinthus was obviously higher than that by healthy Acropora hyacinthus, and did not jave positive reflectance features. The differential analysis of coral substrate reflectance use PRIMER6 software packages Clustering. Healthy Acropora hyacinthus reflectance, dead Acropora hyacinthus reflectance and sand reflectance can be distinguished at the level of 80% Bray-Curits similarity. Based on reflectance derivative analysis, the first derivative of reflectance between 490 and 560 nm provided good identification of healthy and dead Acropora hyacinthus.

Key words： Sanya; Acropora hyacinthus; reflectance analysis

Cite this article

CHEN Biao1, 2, CHEN Yong-qiang1, 3, HUANG Hui1, 3, XIE Qiang4, 5, JIANG Yu-feng1, 2, LEI Xin-ming1, JIANG Lei1, 2, ZHANG Shi-ze1, 2, ZHOU Guo-wei1, 3 . Analysis of reflectance by Acropora hyacinthus in Luhuitou, Sanya of the South China Sea[J]. Journal of Tropical Oceanography, 2015 , 34(1) : 71 -76 . DOI: 10.11978/j.issn.1009-5470.2015.01.010

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