developing the least damaged/more natural data layer least damaged/more natural workshop pete...
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Developing the least damaged/more natural data
layer
Least damaged/more natural workshop
Pete Chaniotis
Joint Nature Conservation Committee
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What is ‘least damaged/more natural’?
• A policy approach from Sustainable Seas for All
• Scottish MPA Selection Guidelines will be applied to least damaged/more natural areas first before being applied more widely
– Identification of areas containing features which are potentially in better condition
– Identifying opportunities in areas of least activity
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How was the least damaged/more natural layer developed?
• Features are sensitive to pressures that may be associated with activities
• Need to know: – The degree to which MPA search features are
sensitive to pressures– Which activities may be associated with those
pressures
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• Collation of marine activities data to provide information on the extent of pressures occurring in Scotland’s seas:
• Range of sources:
– Defra-led contract ‘MB106’– JNCC data verification work– State of Scotland’s Seas
How was the least damaged/more natural layer developed?
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• Assigning physical extent/pressure footprints to marine activities data
– Effects of activities may extend beyond the area over which they are undertaken
• Not possible in all cases:– Marinas, ports and harbours, coastal quarrying sites,
beach replenishment sites, munitions dumping ground points, power stations
• Represents activities currently taking place in Scotland’s seas
• Interpreted within the context of future interest areas
How was the least damaged/more natural layer developed?
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Methodology
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Principles
• Areas of approximately one grid cell or less were generally removed
• Areas which overlapped with known existing activity not incorporated into the production of the layer were generally removed
• Intertidal areas/thin coastal strips removed due to scale/data resolution issues
• Removal of areas which were heavily divided, e.g. subdivisions of some sea lochs by fishing activity/parts of the North Sea by oil and gas activity
• Larger, offshore areas subdivided using large scale units or common bathymetry
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Mersehead Sands and Outer Solway Firth
Wigtown Bay
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East Orkney
Norwegian boundary sediment plain
Montrose Field
East of Gannet Field
Greater & Lesser East of Marr & Montrose Bank
St Andrews Bay & Eden Estuary
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Faroe-Shetland Channel
North Orkney to Fair Isle
North-east of Fair Isle
Waters around Roussay
Inshore South Isles - Orkney
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Loch Sween
Loch Nevis & Loch Hourn
Loch Long & Loch Duich
Loch Carron
Loch Torridon
Loch Tarbert
Lochs a Chairn Bhairn, Glencoul & Glendhu
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West MPA Region (islands and offshore)
Stanton Banks to South West St Kilda
Between Monach Islands and St Kilda
West of Outer Hebrides
North West Islay & Laggan Bay
East of Benbecula & North Uist
North West Tiree inc. Skerrymore
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Darwin Mounds
Rockall Basin
Anton Dohrn Seamount
North West Rockall Bank
Sediment plain North of George Bligh BankHatton-Rockall
Basin
Hatton Bank
Far West Approaches
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Limitations and caveats
• The data– Recognised gaps – Represents a snapshot of where and how Scotland’s seas
are being used– High-level assessment as opposed to something more
detailed
• The method– Intensity at which activities occur not considered – Cumulative effects not considered
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[email protected] - Scottish [email protected] - Territorial [email protected] - Offshore waters