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Hydrobiologia

, Volume 727, Issue 1, pp 121–136 | Cite as

The ecology of benthopelagic fishes at offshore wind farms: a synthesis of 4 years of research

  • J. T. Reubens
  • S. Degraer
  • M. Vincx
Primary Research Paper

Abstract

In the next 10–20 years, thousands of wind turbines will be present in the North Sea. In this paper, we investigate the impact of these windmill artificial reefs (WARs) on the ecology of benthopelagic fish. More specifically we will try to resolve the attraction-ecological trap-production issue for Atlantic cod and pouting at WARs and link the information to opportunities for fisheries activities. From 2009 until 2012 the behavioural ecology of Atlantic cod and pouting was investigated at WARs in the Belgian part of the North Sea (BPNS). Information on length-frequency distribution, diet, community structure and movements were combined to gain insights on the behavioural ecology and to unravel whether production occurs. We demonstrated that specific age groups of Atlantic cod and pouting are seasonally attracted towards the WARs, that they show high site fidelity and feed upon the dominant epifaunal prey species present. Growth was observed throughout the period the fishes were present. Production on a local scale can be assumed. On a regional scale however, no changes were observed yet. Based on the acquired knowledge we judged that no fisheries activities should be allowed inside the offshore wind farms in the BPNS.

Keywords

Atlantic cod Benthopelagic fish Offshore wind farm Pouting Reef effects Windmill artificial reef 

Notes

Acknowledgments

The first author acknowledges a doctoral grant from the Fund for Scientific Research—Flanders (FWO 1.1.075.10.N.00). This research was facilitated by the Flanders Marine Institute (VLIZ) and the Management Unit of the North Sea Mathematical Models (MUMM). We thank the crew of the RV Simon Stevin and RV Belgica, the numerous colleagues and students for their assistance in the field. We are grateful to vzw Fishpop for the use of their logo in the conceptual figures. This paper contributes to the Belgian wind farm monitoring programme, with the financial support of C-Power nv, Belwind nv and Northwind nv.

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© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  1. 1.Marine, Biology Research Group, Department of BiologyGhent UniversityGhentBelgium
  2. 2.Marine Ecosystem Management Section, Operational Directorate Natural EnvironmentRoyal Belgian Institute of Natural SciencesBrusselsBelgium

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