Effect of low concentrations of Irgarol 1051 on RGB (R, red; G, green; B, blue) colour values of the hard-coral Acropora tenuis
| Autor: | Ichiro Takeuchi, Kotaro Takayama, Hiroshi Ishibashi, Shinsuke Haruta, Keita Hirayama |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Coral bleaching Coral ved/biology.organism_classification_rank.species Color 010501 environmental sciences Aquatic Science Biology Oceanography 01 natural sciences Botany Animals Acropora Acropora tenuis Reef Irgarol 1051 Volume concentration 0105 earth and related environmental sciences geography geography.geographical_feature_category Dose-Response Relationship Drug Herbicides Pigmentation Triazines ved/biology 010604 marine biology & hydrobiology Environmental Exposure Pigments Biological Anthozoa biology.organism_classification Pollution Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Marine Pollution Bulletin. 124:678-686 |
| ISSN: | 0025-326X |
| DOI: | 10.1016/j.marpolbul.2017.05.027 |
| Popis: | Colour change in Acropora tenuis , a representative species of Indo-Pacific hard coral, in response to low concentrations of Irgarol 1051 was examined in the laboratory. Branches of A. tenuis were exposed to 0, 1, and 10 μg Irgarol 1051/L for 14 days, and photographed daily using digital camera. These Irgarol 1051 concentrations were similar to those recorded at a number of sea ports. Red, green and blue (RGB) coral colour values were quantified from the photographs, with black represented by R = G = B = 0 and white as R = G = B = 255. Exposure to Irgarol 1051 caused RGB values to increase, moving towards the ‘white’ end of the spectrum as Irgarol 1051 concentration increased. These results suggest that the ambient levels of Irgarol 1051 recorded from port environments could be implicated in coral bleaching, if concentrations over nearby reef ecosystems are similar. |
| Databáze: | OpenAIRE |
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