阿拉伯海域鹦嘴鱼的结构和功能的区域变化。
Regional variation in the structure and function of parrotfishes on Arabian reefs.
机构信息
ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville Q4811, Australia; Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
School of Life Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom.
出版信息
Mar Pollut Bull. 2016 Apr 30;105(2):524-31. doi: 10.1016/j.marpolbul.2015.11.035. Epub 2015 Nov 19.
Parrotfishes (f. Labridae) are a unique and ubiquitous group of herbivorous reef fishes. We compared the distribution and ecosystem function (grazing and erosion) of parrotfishes across 75 reefs in Arabia. Our results revealed marked regional differences in the abundance, and taxonomic and functional composition of parrotfishes between the Red Sea, Arabian Sea, and Arabian Gulf. High densities and diversity of parrotfishes, and high rates of grazing (210% year(-1)) and erosion (1.57 kgm(-2)year(-1)) characterised Red Sea reefs. Despite Arabian Sea and Red Sea reefs having broadly comparable abundances of parrotfishes, estimates of grazing (150% year(-1)) and erosion (0.43 kgm(-2)year(-1)) were markedly lower in the Arabian Sea. Parrotfishes were extremely rare within the southern Arabian Gulf, and as such rates of grazing and erosion were negligible. This regional variation in abundance and functional composition of parrotfishes appears to be related to local environmental conditions.
鹦嘴鱼（Labridae 科）是一种独特且无处不在的草食性珊瑚鱼群。我们比较了阿拉伯地区 75 个珊瑚礁中鹦嘴鱼的分布和生态系统功能（摄食和侵蚀）。我们的研究结果表明，红海、阿拉伯海和波斯湾的鹦嘴鱼丰度、分类和功能组成存在明显的区域差异。红海中的鹦嘴鱼密度高、种类多，摄食率（每年 210%）和侵蚀率（每年 1.57 千克/平方米）都很高。尽管阿拉伯海和红海的鹦嘴鱼丰度相当，但阿拉伯海的摄食率（每年 150%）和侵蚀率（每年 0.43 千克/平方米）明显较低。在波斯湾南部，鹦嘴鱼极为罕见，因此摄食和侵蚀率可以忽略不计。鹦嘴鱼丰度和功能组成的这种区域性差异似乎与当地的环境条件有关。
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