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Marine Aquaculture Site – Grey Horse Channel Outer Video Survey June 2018

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Marine Aquaculture Site – Grey Horse Channel Outer Video Survey June 2018 Marine Aquaculture Site – Grey Horse Channel Outer Video Survey June 2018 MARINE HARVEST ( SCOTLAND) LIMITED SEPTEMBER 2018 Registered in Scotland No. 138843 Stob Ban House 01397 715084 - Registered Office, Glen Nevis Business Park 1st Floor, Admiralty Park Fort William, PH33 6RX Kate. Stronach@marineharvest. com Admiralty Road, Rosyth, Fife Stob Ban House KY11 2YW Glen Nevis Business Park http:// marineharvest. com Fort William, PH33 6RX Grey Horse Channel Outer 2018 Baseline Video Survey Report 2 | 14 Video Survey Assessment for: Marine Harvest ( Scotland) Ltd. proposed Grey Horse Channel Outer Farm Requirement for survey: Baseline Date of survey: 26/06/2018 Surveyed by: Marine Harvest (Scotland) Ltd. Equipment used: Towed Sledge with HD camera A video survey was undertaken at Grey Horse Channel Outer to examine the epifauna on the seabed and the baseline assessment will be submitted as part of applications for licences at the proposed site. Marine Harvest (Scotland) Ltd. propose to install a new site north west of Greineam Island which will operate to a biomass of 2500t. The site will consist of 14 circular pens each 120m in circumferen ce and held in 75m matrix squares in a 2 x 7 grid. Modelling has been completed using AutoDEPOMOD and a predicted deposition footprint generated. The Grey Horse Channel Outer video survey provides seabed footage on transects through the area of seabed within the predicted footprint. Grey Horse Channel Outer Biotope Assessment The footage for the transects has been viewed to identify occurring species, habitat types and zonation using the Marine Habitat Classification Hierarchy and SACFOR abundance scale from the JNCC website ( 2017). Video footage was collected along three transects with two sets of footage recorded; the first is standard quality with geotagging to track the course of the footage, the second set of footage is HD footage to assist in taxonomic identification. Grey Horse Channel Outer 2018 Baseline Video Survey Report 3 | 14 Figure 1: Footage Locations Grey Horse Channel Outer 2018 Baseline Video Survey Report 4 | 14 Table 1: Coordinates Transect 1 Co-ordinates Video 1 Start 57° 40.2892’N 007° 02.2866’W 2 min 57° 40.2857’N 007° 02.3223’W 4 min 57° 40.2551’N 007° 02.3645’W 6 min 57° 40.2268’N 007° 02.4151’W 8 min 57° 40.2336’N 007° 02.4109’W End 57° 40.2162’N 007° 02.4467’W Video 2 Start 57° 40.2067’N 007° 02.4218’W 2 min 57° 40.1814’N 007° 02.4716’W 4 min 57° 40.1497’N 007° 02.5330’W 6 min 57° 40.1285’N 007° 02.5786’W 8 min 57° 40.1245’N 007° 02.5895’W 10 min 57° 40.1244’N 007° 02.6000’W 12 min 57° 40.1009’N 007° 02.6530’W End 57° 40.0999’N 007° 02.6624’W Video 3 Start 57° 40.0999’N 007° 02.6626’W End 57° 40.1007’N 007° 02.6720’W Video 4 Start 57° 40.1007’N 007° 02.6726’W 2 min 57° 40.0889’N 007° 02.7222’W 4 min 57° 40.0907’N 007° 02.7322’W 6 min 57° 40.0782’N 007° 02.7774’W 8 min 57° 40.0475’N 007° 02.7676’W 10 min 57° 40.0230’N 007° 02.7997’W 12 min 57° 40.0243’N 007° 02.7963’W End 57° 40.0186’N 007° 02.7991’W Video 5 Start 57° 40.0193’N 007° 02.7990’W End 57° 40.0184’N 007° 02.7990’W Video 6 Start 57° 40.0181’N 007° 02.7988’W End 57° 40.0176’N 007° 02.7951’W Video 7 Start 57° 40.0177’N 007° 02.8090’W 2 min 57° 39.9973’N 007° 02.8599’W 4 min 57° 39.9779’N 007° 02.9216’W 6 min 57° 39.9549’N 007° 02.9765’W 8 min 57° 39.9427’N 007° 03.0198’W 10 min 57° 39.9307’N 007° 03.0223’W Grey Horse Channel Outer 2018 Baseline Video Survey Report 5 | 14 12 min 57° 39.9103’N 007° 03.0573’W End 57° 39.8978’N 007° 03.0764’W Video 8 Start 57° 39.8967’N 007° 03.0785’W 2 min 57° 39.8841’N 007° 03.0991’W 4 min 57° 39.8854’N 007° 03.1006’W 6 min 57° 39.8727’N 007° 03.1284’W 8 min 57° 39.8548’N 007° 03.1566’W 10 min 57° 39.8523’N 007° 03.1411’W 12 min 57° 39.8595’N 007° 03.1674’W End 57° 39.8608’N 007° 03.1644’W Video 9 Start 57° 39.8676’N 007° 03.1313’W 2 min 57° 39.8542’N 007° 03.1516’W 4 min 57° 39.8630’N 007° 03.1685’W End 57° 39.8633’N 007° 03.1594’W Transect 2 Co-ordinates Video 1 Start 57° 39.9245’N 007° 02.6843’W 2 min 57° 39.9510’N 007° 02.7502’W 4 min 57° 39.9856’N 007° 02.7880’W 6 min 57° 39.9923’N 007° 02.8136’W 8 min 57° 40.0124’N 007° 02.8284’W 10 min 57° 40.0267’N 007° 02.8635’W End 57° 40.0219’N 007° 02.8720’W Video 2 Start 57° 40.0215’N 007° 02.8724’W End 57° 40.0358’N 007° 02.8611’W Video 3 Start 57° 40.0366’N 007° 02.8613’W 2 min 57° 40.0472’N 007° 02.8848’W 4 min 57° 40.0488’N 007° 02.9261’W 6 min 57° 40.0673’N 007° 02.9262’W 8 min 57° 40.0735’N 007° 02.9166’W 10 min 57° 40.0940’N 007° 02.9526’W End 57° 40.0927’N 007° 02.9699’W Video 4 Start 57° 40.0921’N 007° 02.9701’W 2 min 57° 40.0731’N 007° 02.9905’W End 57° 40.0712’N 007° 02.9852’W Video 5 Grey Horse Channel Outer 2018 Baseline Video Survey Report 6 | 14 Static 57° 40.0706’N 007° 02.9740’W Transect 3 Co-ordinates Video 1 Start 57° 40.0775’N 007° 02.3906’W 2 min 57° 40.0954’N 007° 02.4293’W 4 min 57° 40.1177’N 007° 02.4632’W 6 min 57° 40.1337’N 007° 02.5084’W 8 min 57° 40.1518’N 007° 02.5065’W End 57° 40.1616’N 007° 02.5570’W Video 2 Start 57° 40.1618’N 007° 02.5573’W 2 min 57° 40.1744’N 007° 02.5606’W End 57° 40.1782’N 007° 02.5581’W Video 3 Start 57° 40.1784’N 007° 02.5575’W 2 min 57° 40.1849’N 007° 02.5920’W 4 min 57° 40.1949’N 007° 02.5991’W 6 min 57° 40.1958’N 007° 02.5711’W 8 min 57° 40.2041’N 007° 02.6231’W 10 min 57° 40.2245’N 007° 02.6495’W End 57° 40.2218’N 007° 02.6549’W Video 4 Start 57° 40.2217’N 007° 02.6545’W 2 min 57° 40.2250’N 007° 02.6305’W End 57° 40.2291’N 007° 02.6513’W Video 5 Start 57° 40.2298’N 007° 02.6515’W 2 min 57° 40.2276’N 007° 02.6565’W 4 min 57° 40.2366’N 007° 02.6579’W End 57° 40.2283’N 007° 02.6416’W Grey Horse Channel Outer 2018 Baseline Video Survey Report 7 | 14 Footage Biotope Typing HD Video 1 to 12 – Transect 1 The footage in the transect video shows that there are two main biotope types within the area. The start of the transect consists of boulders covered by a mixed turf of hydroids and large ascidians with Swiftia pallida and Caryophyllia smithii on weakly tide-swept circalittoral rock CR.HCR.XFa.SwiLgAs with patches of coarse gravel with high shell content ; circalittoral coarse sediment SS.SCS.CCS. As the transect moves away from the shallower area illustrated on the charts ( Figure 1), where the more rocky habitats as expected occur, the sediment type changes to sandy mud SS.SMu.CSaMu with areas of pebbles and gravel. This is based upon the presence of characterising species Nemertesia ramose, Munida rugosa, Swiftia pallida, Caryophyllia smithii, Echinus esculentus, and Asterias rubens for the first biotope type in conjunction with Cerianthus lloydii, Pagurus bernhardus, Echinus esculentus, and Asterias rubens in the interspersing gravel patches. The second biotope is based upon the presence of characterising species Nemertesia ramosa, Cerianthus lloydii, Pagurus bernhardus, Pagurus prideaux, Turritella communis, Asterias rubens, Ophiura ophiura and Echinus esculentus. There are sparse burrows located throughout the area. Table 2: Species ID – Transect 1 Common Name Latin Name SACFOR abundance estimate Transect 1 – Video 1 Large boulders with gaps of coarse gravel with high shell content. Hydroid Nemertesia ramosa F Tube Anemone Cerianthus lloydii R Rugose Squat Lobster Munida rugosa R Hydroid Sp. O Queen Scallop Aequipecten opercularis R Auger Shell Turritella communis R Transect 1 – Video 2 Patches of boulders at start and end of section, large area of sand with shells and pebbles. Auger Shell Turritella communis F Hermit Crab Pagurus bernhardus F Painted Goby Pomatoschistus pictus R Various Hydroid Species Sp. O Brittle Star Ophiura ophiura O Devonshire Cup Coral Caryophyllia smithii O Curled Octopus Eledone cirrhosa R Phosphorescent Sea Pen Pennatula phosphorea R Sea Squirt Ascidiella aspersa O Starfish Asterias rubens R Queen Scallop Aequipecten opercularis R Northern Sea Fan Swiftia pallida R Rugose Squat Lobster Munida rugosa R Grey Horse Channel Outer 2018 Baseline Video Survey Report 8 | 14 Light Bulb Sea Squirt Clavelina lepadiformis O Edible Sea Urchin Echinus esculentus R Transect 1 – Video 3 Scattered boulders with large patches of coarse gravel with high shell content.
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