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Colonisation of wave power foundations by mobile mega- and macrofauna - a 12 year study.
Marine Environmental Research ( IF 3.3 ) Pub Date : 2020-08-13 , DOI: 10.1016/j.marenvres.2020.105053
Anke Bender 1 , Olivia Langhamer 1 , Jan Sundberg 1
Affiliation  

Environmental impacts from wave energy generators on the local mobile mega- and macrofauna community have been investigated in the Lysekil project by Uppsala University. Offshore renewable energy installations provide hard, artificial substrates, and as such, they could act as artificial reefs. Foundations with manufactured holes served as complex habitats and foundations without served as non-complex. In this long-term study, SCUBA surveys of mobile fauna in the years 2007, 2008 and 2016–2019 were analyzed. The results show a distinct reef effect on the foundations with significant greater species richness, total number of individuals, greater values of the Shannon-Wiener biodiversity index, and greater abundance of specific reef fauna. Complex foundations accommodated a greater abundance of brown crabs than non-complex foundations, other taxa did not show differences between the two foundation types. A successional increase of species richness, numbers of individuals and Shannon-Wiener biodiversity could be revealed from the first to the second survey period. Inter-annual variation was visible throughout all taxa and years.



中文翻译:

移动巨型和大型动物群对波浪能基础的殖民化——一项为期 12 年的研究。

乌普萨拉大学的 Lysekil 项目研究了波浪能发电机对当地移动大型和大型动物群落的环境影响。海上可再生能源装置提供坚硬的人造基质,因此它们可以充当人工鱼礁。带有人造孔的地基用作复杂的栖息地,而没有用作非复杂地基的地基。在这项长期研究中,分析了 2007 年、2008 年和 2016-2019 年对流动动物群的 SCUBA 调查。结果表明,珊瑚礁对地基的影响明显,物种丰富度、个体总数、香农-维纳生物多样性指数值更大,特定珊瑚礁动物群更丰富。复杂地基比非复杂地基能容纳更多的褐蟹,其他分类群没有显示出两种基础类型之间的差异。从第一个调查期到第二个调查期,可以揭示物种丰富度、个体数量和香农-维纳生物多样性的连续增加。在所有分类群和年份中都可以看到年际变化。

更新日期:2020-08-14
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