Temporal variation in environmental conditions and the structure of fish assemblages around an offshore oil platform in the North Sea
Temporal variation in environmental conditions and the structure of fish assemblages around an offshore oil platform in the North Sea
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DOI：
10.1016/j.marenvres.2015.03.013
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发表时间：
2015-07-01
影响因子：
3.3
通讯作者：
Fujii, Toyonobu
中科院分区：
文献类型：
--
作者：
Fujii, Toyonobu
这项研究报告的时间变化的环境条件和结构的鱼类组合观察附近的近海石油平台和周围的北海海底。在一个典型的大型钢夹套设施中进行了多季节采样，在三个不同深度（即，10、50和100米）。经济上重要的鳕类，如saithe Pollachius virens，黑线鳕Melanogrammus aeglefinus和鳕鱼Gadus morhua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海上平台的实际存在之间存在着高度动态和特定物种的相互作用。鉴于目前在北海安装的平台数量，有必要确定这种动态相互作用背后的生物机制。(C)2015作者由Elsevier Ltd.发布。这是CC BY-NC-ND许可证下的开放获取文章（http：//creativecommons.orgflicenses/by-nc-nd/4.0/）。
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. (C) 2015 The Author. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.orgflicenses/by-nc-nd/4.0/).