Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, Ehime 790-8566, Japan.
Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, Ehime 790-8566, Japan; Center of Advanced Technology for the Environment, Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, Ehime 790-8566, Japan.
Mar Pollut Bull. 2017 Nov 30;124(2):678-686. doi: 10.1016/j.marpolbul.2017.05.027. Epub 2017 Jun 22.
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 10μgIrgarol1051/L for 14days, 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.
实验室研究了低浓度 Irgarol 1051 对印度洋-太平洋硬珊瑚代表物种——纤细鹿角珊瑚的颜色变化的影响。将纤细鹿角珊瑚的分枝暴露于 0、1 和 10μgIrgarol1051/L 中 14 天，并每天使用数码相机拍摄照片。这些 Irgarol 1051 浓度与许多海港记录的浓度相似。从照片中量化了珊瑚的红、绿和蓝（RGB）颜色值，其中黑色表示 R=G=B=0，白色表示 R=G=B=255。暴露于 Irgarol 1051 会导致 RGB 值增加，随着 Irgarol 1051 浓度的增加，颜色向光谱的“白色”端移动。如果附近珊瑚礁生态系统中的浓度相似，这些结果表明从港口环境中记录的 Irgarol 1051 环境水平可能与珊瑚白化有关。
