Fujii Toyonobu
Oceanlab, School of Biological Sciences, University of Aberdeen, Main Street, Newburgh, Aberdeenshire, AB41 6AA, UK.
Mar Environ Res. 2015 Jul;108:69-82. doi: 10.1016/j.marenvres.2015.03.013. Epub 2015 Apr 9.
This study reports temporal variations in the environmental conditions and the structure of fish assemblages observed in the vicinity of an offshore oil platform and the surrounding seafloor in the North Sea. Multi-seasonal sampling was conducted at a typical large steel jacketed facility, using mid-water fish traps at three different depths (i.e., 10, 50 & 100 m). Commercially important gadoids such as saithe Pollachius virens, haddock Melanogrammus aeglefinus and cod Gadus morhua were the most abundant species, however, the species composition and the relative abundances of the species varied with depth, season and between years. Comparisons with a large-scale bottom trawl survey data suggested highly dynamic and species-specific interactions between fish movements, changing environmental conditions and the physical presence of an offshore platform. Given the number of platforms currently installed across the North Sea, there is a need to identify biological mechanisms behind such dynamic interactions.
本研究报告了北海一座近海石油平台附近及周边海底观测到的环境条件和鱼类群落结构的时间变化。在一个典型的大型钢质护套设施进行了多季节采样，在三个不同深度（即10米、50米和100米）使用中层鱼类陷阱。重要的商业性鳕科鱼类，如黑线鳕、黑线鳕和鳕鱼是最丰富的物种，然而，物种组成和物种的相对丰度随深度、季节和年份而变化。与大规模底拖网调查数据的比较表明，鱼类移动、不断变化的环境条件和近海平台的物理存在之间存在高度动态且物种特异性的相互作用。鉴于目前北海各地安装的平台数量，有必要确定这种动态相互作用背后的生物学机制。
