European Directory of Marine Environmental Data (EDMED)

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General
Data set name

IMARES_PAWPDEM - Sampling demersal fish with beam trawls in the OWEZ windpark, October 2013

Data holding centreIMARES, Wageningen UR, Institute for Marine Resources and Ecosystem Studies, IJmuiden
CountryNetherlands  Netherlands
ProjectMonitoring Windfarm Prinses Amalia(PAWP)
Time period01-02 October 2013
OngoingNo
Geographical area

North Sea coastal zone

Observations 
Parameters

Fish morphology, age and physiology; Fish taxonomy-related abundance per unit area of the bed; Fish taxonomy-related counts; Fish biomass in water bodies; Shellfish abundance and biomass in water bodies; Raw temperature and/or salinity instrument output; Zoobenthos taxonomy-related counts

Instruments

Beam trawls; balances and scales; rulers; CTD

Description 
Summary

The main purpose of this sampling was to study the effects of the OWEZ windpark on the demersal fish community. Because before installation of the windfarm the main fisheries activity in the area was bottom trawling, it is expected that exclusion of fisheries in the wind farm has the largest effect on the demersal fish community. The wind farm and its safety zone could function as a refugium for these species. If the area functions as a refugium this could be the case for a large number of demersal fish species that occur in the Dutch coastal zone. Owing to this a positive effect of the wind farm on the demersal fish community was expected. The fisheries that occurred in the area targeted larger fish, therefore fisheries mortality was higher on the larger fish. By excluding fisheries in the farm it was expected to change the size distribution in the farm and by that the age distribution of the fish populations. A Hydrolab minisonde, attached to the net, was used for continuous CTD measurements.

OriginatorsENECO / Prinses Amaliawindpark
IMARES, Wageningen UR, Institute for Marine Resources and Ecosystem Studies, IJmuiden
Availability 
OrganisationIMARES, Wageningen UR, Institute for Marine Resources and Ecosystem Studies, IJmuiden
AvailabilityNo access
ContactIngeborg de Boois
Address

IMARES, Wageningen UR, Institute for Marine Resources and Ecosystem Studies, IJmuiden
Haringkade 1
IJmuiden

1976 CP
Netherlands

Telephone+31 317480900
Facsimile+31 317487326
Emailingeborg.deboois@wur.nl
Administration 
Collating centreENECO / Prinses Amaliawindpark
Local identifierIMARES_5760020
Global identifier6153
Last revised2015-02-09