The location of offshore wave power devices structures epifaunal assemblages

Journal Article

Title: The location of offshore wave power devices structures epifaunal assemblages
Authors: Langhamer, O.
Publication Date:
December 01, 2016
Journal: International Journal of Marine Energy
Volume: 16
Pages: 174-180
Publisher: Elsevier
Affiliation:
Stressor:
Technology Type:

Document Access

Website: External Link

Citation

Langhamer, O. (2016). The location of offshore wave power devices structures epifaunal assemblages. International Journal of Marine Energy, 16, 174-180.
Abstract: 

With large-scale development of offshore wave power conversion, artificial structures become more common in the open sea. To examine how wave power devices may be colonized by epifaunal organisms, 21 concrete foundations used for anchoring wave power generators were studied during two years, 2007 and 2008. The foundations were placed in two different clusters, located north and south within the Lysekil test site at the Swedish west coast. The degree to which early recruits covered the foundations and the succession of epibenthic communities were documented during two years. A succession in colonization over time was observed, with a higher degree of cover in the northern location. Furthermore, the northern location showed an increase in number of individuals, number of species and in Shannon-Wiener diversity in 2008. Dominant organisms on the foundations were the serpulid tubeworms (Pomatoceros triqueter) and barnacles (Balanus sp.). This comprehensive large-scale study about succession and colonization patterns on wave power foundations suggests that the location of wave energy devices affects colonization patterns. This gives indications on settlement patterns on already operating and planned offshore wave power parks further off the coasts.

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