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2011, Gardline Environmental, Zone 3 Dogger Bank Tranche A and Associated Export Cable Route, Benthic Survey

2011, Gardline Environmental, Zone 3 Dogger Bank Tranche A and Associated Export Cable Route, Benthic Survey

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Benthic Ecology
Sedimentology

Description

Benthic survey of the Dogger Bank Tranche A and associated export route. Survey completed by Gardline Environmental on behalf of Forewind Ltd. The object of the survey was to investigate pre-selected sites for the presence or absence of Annex I habitats protected under the European Habitats Directive using appropriate guidance notes and high resolution under water video and stills photography (Fresh Water Lens System), to delineate the extent of any Annex I habitat found, also ground truthing of selected sites using a sediment sampler for the determination of Herring Spawning Ground (HSG) potential based on guidelines provided by Cefas (2001). Survey also undertakes characterisation of seabed sediments and Archaeological assessment. In order to accomplish above objectives three methods were used which are: 1) Fresh Water Lens Camera Procedure 2) Day Grab Procedure 3) Mini Hamon Grab Procedure. Results of these methods were provided in field sampling logs (.XLS format) by Gardline Geosurvey Limited. Logs were provided for seabed imagery (deck log + Surveyor log), Day Grab samples (deck log + Surveyor log) and Mini Hamon Grab Samples (deck log + Surveyor log).

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Survey Logs

Video Footage

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Report