Planning Scotland's Seas: 2013 - The Scottish Marine Protected Area Project – Developing the Evidence Base for Impact Assessments and the Sustainability Appraisal Final Report - Appendix E - Marine Site Reports

This is Appendix E for the pMPA Impact and Sustainability Report containing the detailed site by site reports. Published separately due to size.


South Arran ( ARR)

Site Area (km 2): 286

Site Summary

Table 1. Summary of Proposed Protected Features, Data Confidence and Conservation Objectives [ ARR]
Proposed protected features
Biodiversity Features
Burrowed mud, kelp and seaweed communities, maerl beds, maerl or coarse shell gravel with burrowing sea cucumbers, seagrass beds, shallow tide-swept coarse sands with burrowing bivalves, ocean quahog, herring spawning grounds.

Geodiversity Features
None.

Site Description
The South Arran MPA proposal is located around the southern half of the Isle of Arran in the Clyde Sea. The outer boundary line is 3nm from the coast and incorporates Holy Isle, Pladda Island and an existing NTZ in Lamlash Bay.
Summary of confidence in presence, extent and condition of proposed protected features and conservation objectives
Proposed Protected Feature Estimated Area of Feature (by scenario) (km 2) Confidence in
Feature Presence
Confidence in
Feature Extent
Confidence in
Feature Condition
Conservation Objective and Risk
Biodiversity Features
Burrowed mud *Lower: 103.71
Intermediate: 103.71
Upper: 157.27
Yes ( SNH & Marine Scotland surveys, 2010 & 2012) Partial Not known Conserve
Kelp and seaweed communities Lower: 0.63
Intermediate: 0.63
Upper: 5.06
Yes ( SNH & Marine Scotland surveys, 2010 & 2012) Partial Not known Conserve
Maerl beds Lower: 0.61
Intermediate: 3.90
Upper: 14.96
Yes ( SNH & Marine Scotland surveys, 2010 & 2012) Partial Not known Recover
Maerl or coarse shell gravel with burrowing sea cucumbers Lower: 0.61
Intermediate: 3.90
Upper: 14.96
Yes ( SNH & Marine Scotland surveys, 2010 & 2012) Partial Not known Recover
Seagrass beds Lower: 0.43
Intermediate: 0.61
Upper: 68.51
Yes (COAST data; Seasearch, 2005 & 2012) Yes Not known Conserve
Shallow tide-swept coarse sands with burrowing bivalves Lower: 0.18
Intermediate: 1.77
Upper: 25.90
Yes ( SNH & Marine Scotland surveys, 2010 & 2012) Partial Not known Conserve
Ocean quahog Lower: 214.63
Intermediate: 214.63
Upper: 214.63
Yes ( SNH & Marine Scotland surveys, 2010 & 2012) Partial Not known Conserve
Herring Spawning Grounds Lower: 1.32
Intermediate: 1.32
Upper: 1.32
Yes - dive surveys Partial - age of data Not known Conserve (uncertain)
Geodiversity Features
N/A
Key: * Estimated area based on best available data
References:
Area of Feature: GeMs
Confidence in feature presence and extent: SNH (2012o)

Summary of Costs and Benefits

Table 2a. Site-Specific Economic Costs on Human Activities arising from the Designation and Management of the Site as an MPA (present value of total costs over 2014 to 2033 inclusive) [ ARR]
Human Activity Cost Impact on Activity
Lower Estimate (£Million) Intermediate Estimate (£Million) Upper Estimate (£Million)
Quantified Economic Costs (Discounted)
Aquaculture (Finfish) 0.001 0.003 0.003
Aquaculture (Shellfish) See national costs See national costs See national costs
Commercial Fisheries* 0.009 1.674 4.839
Energy Generation 0.009 0.040 1.054
Military See national costs See national costs See national costs
Telecom Cables 0.007 0.007 0.707
Total Quantified Economic Costs 0.025 1.724 6.603
Non-Quantified Economic Costs
Aquaculture (Finfish)
  • Costs associated with potential future development; and
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Costs associated with potential future development; and
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Costs associated with potential future development; and
  • Costs of project delays during consenting; risk of deterrent to investment.
Aquaculture (Shellfish)
  • Costs associated with potential future development; and
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Costs associated with potential future development; and
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Costs associated with potential future development; and
  • Costs of project delays during consenting; risk of deterrent to investment.
Commercial Fisheries
  • Displacement impacts.
  • Displacement impacts.
  • Displacement impacts.
Energy Generation
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Costs of project delays during consenting; risk of deterrent to investment.
Military
  • See national costs.
  • See national costs.
  • See national costs.
Ports and Harbours
  • Relocation of anchorages/ mooring areas away from features of high sensitivity.
  • Relocation of anchorages/ mooring areas away from features of high and medium sensitivity.
  • Relocation of anchorages/ mooring areas away from features of high and medium sensitivity.
Recreational Boating
  • Cost of anchorage relocation.
  • Cost of anchorage relocation.
  • Cost of anchorage relocation.
Telecom Cables
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Costs of project delays during consenting; risk of deterrent to investment.
Note: For detailed information on economic cost impacts on activities, see Table 4.
* These estimates (present value of total change in GVA) assume zero displacement of fishing activity and hence are likely to overestimate the costs.
Table 2b. Site-Specific Public Sector Costs arising from the Designation and Management of the Site as an MPA (over 2014 to 2033 inclusive) [ ARR]
Description Public Sector Costs
Lower Estimate (£Million) Intermediate Estimate (£Million) Upper Estimate (£Million)
Quantified Public Sector Costs (Discounted)
Preparation of Marine Management Schemes 0.024 0.024 0.024
Preparation of Statutory Instruments 0.004 0.004 0.004
Development of voluntary measures National assessment National assessment National assessment
Site monitoring National assessment National assessment National assessment
Compliance and enforcement National assessment National assessment National assessment
Promotion of public understanding National assessment National assessment National assessment
Regulatory and advisory costs associated with licensing decisions 0.002* 0.002* 0.002*
Total Quantified Public Sector Costs 0.029 0.029 0.029
Non-Quantified Public Sector Costs
None identified.
* Regulatory and advisory costs of finfish and shellfish aquaculture assessed at national level.
Table 2c. Summary of Social Impacts and Distribution of Quantified Impacts arising from the Designation and Management of the Site as an MPA (over 2014 to 2033 inclusive) [ ARR]
Key Areas of Social Impact Description Scale of Expected Impact across Scenarios, Average (mean no. of jobs affected) Distributional Analysis
Location Fishing Groups Predominantly Affected Social Groups Affected
Region Port Rural/ Urban/ Island Gear Types Most Affected Vessels most affected Crofters Ethnic minorities With disability or long term sick
Employment with consequent impacts on: Health, Crime, Environment, and Culture and Heritage Commercial fisheries - Loss of jobs (direct and indirect) Lower: 0 jobs
Intermediate: 3 jobs
Upper: 9 jobs
West
West
N. Ireland
West
Campbeltown
Ayr Belfast
Oban
Impacts concentrated in urban and rural coastal areas Nephrops trawls Other trawls Dredges Lower: N/A Upper: >15m No Impact. No breakdown of fisherman employment by ethnic origin. No employment data but unlikely to be employed in fisheries.
If any energy generation developments do not proceed as a result of designation (due to additional costs, project delays, loss of investor confidence), there may be significant social impacts due to job losses (non-quantified).
Note: For detailed information on socio-economic impacts by sector, see Table 7a. For more detailed information on distributional impacts of quantified costs by sector see Tables 7b and 7c.
Table 2d. Site-Specific Benefits arising from the Designation and Management of the Site as an MPA (over 2014 to 2033 inclusive) [ ARR]
Benefit Description
Ecosystem Services Benefits (Moderate and High Benefits) Relevance Scale of Benefits
Fish for human consumption High. Site fishing grounds are valuable, and contain herring spawning grounds and nursery habitats. Moderate
Fish for non-human consumption
Non-use value of natural environment Moderate - High. The variety of protected features, and a contribution of the site to MPA network, has non-use values. Moderate
Recreation Moderate - High. Active dive sites, angling and recreational boating routes. Low - Moderate, enhancement of activities through improved angling and visitor experiences.
Other Benefits
Tourism Higher biodiversity due to designation, and presence of designations, may attract more tourism activity to local economy.
Contribution to ecologically coherent network See report Section 7.5.
Note: For detailed information on ecosystem services benefits, see Tables 9 and 10. For detailed information on other benefits, see Table 5 (activities that would benefit) and Table 8 (contribution to ecologically-coherent network).

Summary of Overlaps and Interactions between Proposed Designated Features and Human Activities

Table 3. Overlaps and Potential Interactions between Features and Activities under different Scenarios, indicating need for Assessment of Cost Impacts on Human Activities from Designation of the Site as an MPA [ ARR]
Aggregates Aquaculture (Finfish) Aquaculture (Shellfish) Aviation Carbon Capture & Storage Coastal Protection Commercial Fisheries Energy Generation Military Activities Oil & Gas Ports & Harbours Power Interconnectors Recreational Boating Shipping Telecom Cables Tourism Water Sports
Biodiversity Features
Burrowed mud - L/I/U L/I/U - - - L/ I/U L/ I/ U L/I/U - - L/I/U - - L/I/U L/I/U L/I/U
Kelp and seaweed communities - - - - - - L/I/U - L/I/U - L/ I/ U L/I/U L/I/U - - L/I/U L/I/U
Maerl beds - - - - - - L/ I/U L/ I/ U L/I/U - - L/I/U - - - L/I/U L/I/U
Maerl or coarse shell gravel with burrowing sea cucumbers - - - - - - L/ I/U L/ I/ U L/I/U - - L/I/U - - - L/I/U L/I/U
Seagrass beds - - L/I/U - - - L/I/U L/I/ U L/I/U - L/ I/ U L/I/U L/I/U - - L/I/U L/I/U
Shallow tide-swept coarse sands with burrowing bivalves - L/I/U L/I/U - - - L/ I/U L/ I/ U L/I/U - - I/U L/I/U - - L/I/U L/I/U
Ocean quahog - L/I/U L/I/U - - - L/ I/U L/ I/ U L/I/U - L/ I/ U L/I/U L/I/U - L/I/U L/I/U L/I/U
Herring Spawning Grounds - - - - - - L/ I/U - L/I/U - - - - - - L/I/U L/I/U
Geodiversity Features
N/A
Note: L = Lower Scenario; I = Intermediate Scenario; U = Upper Scenario. Normal font indicates that there is an overlap between the activity and proposed designated feature under that scenario, bold indicates that the overlap results in a potential interaction between the activity and proposed designated feature that has resulted in cost impacts under that scenario.
For detail of management measures assessed under each scenario for each activity, and results of the cost estimates, see Table 4.

Human Activity Summaries

Human activities that would be impacted by designation of the site as an MPA

Table 4a Aquaculture (Finfish) [ ARR]
One finfish aquaculture (Lamlash) site is located within the ARR proposed MPA. This aquaculture site directly overlaps with the feature 'ocean quahog aggregations' under all scenarios (lower, intermediate and upper). The site is within 1km of this feature (under all scenarios), tide-swept coarse sands with burrowing bivalves and seagrass beds (under the upper scenario only). There is no public information on potential future development within the proposed MPA. In the absence of information on potential future developments, the assessment has focused on the costs associated with obtaining new CAR licences. A national assessment of the costs of obtaining planning permission for new developments is provided separately.
Economic Costs on the Activity of Designation of the Site as an MPA
Lower Estimate Intermediate Estimate Upper Estimate
Assumptions for cost impacts
  • Additional assessment costs for new CAR licence applications to assess impacts to MPA features.
  • Additional assessment costs for new CAR licence applications to assess impacts to MPA features; and
  • Additional survey costs incurred once every 10 years (2019 & 2029) to inform new CAR licence applications.
  • Additional assessment costs for new CAR licence applications to assess impacts to MPA features; and
  • Additional survey costs incurred once every 10 years (2019 & 2029) to inform new CAR licence applications.
Description of one-off costs
  • Additional assessment costs for CAR licence once every 10 years (2019, 2029) of £500 per CAR licence application.
  • Additional assessment costs for CAR licence once every 10 years (2019, 2029) of £500 per CAR licence application; and
  • Additional baseline visual survey costs -£1.6k per CAR licence application
  • Additional assessment costs for CAR licence once every 10 years (2019, 2029) of £500 per CAR licence application; and
  • Additional baseline visual survey costs -£1.6k per CAR licence application
Description of recurring costs
  • None.
  • None.
  • None.
Description of non-quantified costs
  • Possible costs associated with potential future development. A national assessment of additional assessment and survey costs for potential future development is provided separately; and
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Possible costs associated with potential future development. A national assessment of additional assessment and survey costs for potential future development is provided separately; and
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Possible costs associated with potential future development. A national assessment of additional assessment and survey costs for potential future development is provided separately; and
  • Costs of project delays during consenting; risk of deterrent to investment.
Quantified Costs on the Activity of Designation of the Site as an MPA (£Million)
Total costs (2014-2033) 0.001 0.004 0.004
Average annual costs <0.000 <0.000 <0.000
Present value of total costs (2014-2033) 0.001 0.003 0.003
Total costs = Sum of one-off costs and recurring costs for the site summed over the 20 year period.
Average annual costs = Total costs divided by the total number of years under analysis ( i.e. 20).
Present value of total costs = Total costs discounted to their current value, using a discount rate of 3.5%.
Table 4b Aquaculture (Shellfish) [ ARR]

One Shellfish aquaculture site (Lamlash mussel farm) is located within the ARR proposed MPA. This aquaculture site directly overlaps with the feature 'ocean quahog aggregations' under all scenarios (lower, intermediate and upper). The site is within 1km of this feature under all scenarios and within 1km of tide-swept coarse sands with burrowing bivalves, seagrass beds under the upper scenario only.

There is no public information on potential future development within the ARR proposed MPA. In the absence of information on potential future developments, no site specific assessment has been possible. A national assessment of the costs of obtaining planning permission for new developments is provided separately.

Economic Costs on the Activity of Designation of the Site as an MPA
Lower Estimate Intermediate Estimate Upper Estimate
Assumptions for cost impacts
  • N/A
  • N/A
  • N/A
Description of one-off costs
  • N/A
  • N/A
  • N/A
Description of recurring costs
  • N/A
  • N/A
  • N/A
Description of non-quantified costs
  • Possible costs associated with potential future development. A national assessment of additional assessment and survey costs for potential future development is provided separately; and
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Possible costs associated with potential future development. A national assessment of additional assessment and survey costs for potential future development is provided separately; and
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Possible costs associated with potential future development. A national assessment of additional assessment and survey costs for potential future development is provided separately; and
  • Costs of project delays during consenting; risk of deterrent to investment.
Quantified Costs on the Activity of Designation of the Site as an MPA (£Million)
Total costs (2014-2033) See national costs See national costs See national costs
Average annual costs See national costs See national costs See national costs
Present value of total costs (2014-2033) See national costs See national costs See national costs
Total costs = Sum of one-off costs and recurring costs for the site summed over the 20 year period.
Average annual costs = Total costs divided by the total number of years under analysis ( i.e. 20).
Present value of total costs = Total costs discounted to their current value, using a discount rate of 3.5%.
Table 4c. Commercial Fisheries (assuming zero displacement of fishing activity) [ ARR]

According to VMS-based estimates and ICES rectangle landings statistics, Nephrops trawls, dredges and other gears (over-15m) and nephrops trawls, pots, dredges and hand fishing (under-15m) operate within the ARR proposed MPA. The value of catches from the ARR area was £706,000 (over-15m vessels) and £246,000 (under-15m vessels, indicated from ICES rectangle landings data) (annual average for 2007-2011, 2012 prices). Landings from the over-15m vessels are predominantly into Campbeltown (58% by value), Troon and Saltcoats (13%) and Troon (10%). For the over-15m fleet, nephrops trawlers operate in particular in the outer part of the ARR proposed MPA (further from the Arran coast), while dredgers operate across the inner part (closer to the Arran coast).

Management measures for the scenarios have been developed based on the sensitivity and vulnerability of the features to the pressures caused by different gear types and SNH recommendations.

Provisional ScotMap data indicate that the annual average earnings from the ARR proposed MPA was £276,000, with over 70% of this from nephrops trawls. The spatial distribution of value from nephrops trawls indicates that the majority of value in the ARR proposed MPA and surrounding area is derived from the Firth of Clyde in the area north of the southern tip of the Mull of Kintyre and Girvan on the mainland. Since ICES rectangle 39E4 covers a wider area than this, it is likely that the ICES rectangle estimate for the cost impact on <15m nephrops trawls is an under-estimate. ScotMap data would indicate an annual cost impact of around £0.200 million on <15m nephrops trawls under the Upper Scenario. The coverage for ScotMap interviews in the region was 63.8% (total value of reported landings from the Fisheries Information Network for those vessels included in the ScotMap value analysis expressed as a percentage of the total reported landings for all vessels <15m). Therefore the ScotMap estimate is likely to under-represent the value of fishing by under-15m vessels, and the spatial representation of the value of fishing is less robust than in regions where coverage is higher.

VMS data indicate that there are no foreign vessels fishing within the ARR proposed MPA.

Unlike most other sectors, the potential cost of designation on commercial fisheries is a loss or displacement of current (and future) output, caused by restrictions on fishing activities. Any decrease in output will, all else being equal, reduce the Gross Value Added ( GVA) generated by the sector and have knock-on effects on the GVA generated by those industries that supply commercial fishing vessels. The costs estimates for this sector have therefore been estimated in terms of GVA.

GVA estimates have been generated by applying fleet segment-specific 'GVA/total income' ratios to the value of landings affected. The GVA ratios have been calculated using data on total income and GVA from the Sea Fish Industry Authority Multi-year Fleet Economic Performance Dataset (published March 2013). Further details on the GVA ratios and the methodology for estimating GVA and employment impacts applied are presented in Appendix C7.

It is important to note that all costs presented below assume that all affected landings are lost, that is, there is no displacement of fishing activity to alternative fishing grounds. In reality, some displacement is likely to occur and hence the cost, GVA and employment impacts presented in this table are likely to overestimate the costs.

Economic Costs on the Activity of Designation of the Site as an MPA
Lower Estimate Intermediate Estimate Upper Estimate
Assumptions for cost impacts
  • Closure to mobile bottom-contact gear (whitefish, nephrops and other trawls and seines, beam trawls and dredges) across seagrass beds.
  • Reduce mobile bottom-contact gear pressure (whitefish, nephrops and other trawls and seines, beam trawls and dredges) by 50% across burrowed mud;
  • Closure to mobile bottom-contact gears (see above) across maerl beds and seagrass features;
  • Closure to beam trawls and dredges (gears likely to impact on ocean quahog) across the ocean quahog feature extent and reduce pressure from these gears by 50% across tide-swept coarse sands; and
  • Limit further expansion of static gears.
  • Closure to mobile bottom-contact gears (whitefish, nephrops and other trawls and seines, beam trawls and dredges) across full extent of MPA; and
  • Limit further expansion of static gears.
Description of one-off costs
  • None.
  • None.
  • None.
Description of recurring costs
  • Loss of >15m fishing income (annual values, £ million, 2012 prices):
  • Nephrops trawls (0.001);
  • Dredges (<0.001).
  • Loss of <15m fishing income (annual values, £ million, 2012 prices):
  • Nephrops trawls (<0.001);
  • Other trawls (<0.001);
  • Dredges (<0.001);
  • Loss of >15m fishing income (annual values, £ million, 2012 prices):
  • Nephrops trawls (0.157);
  • Dredges (0.051);
  • Other trawls (0.001).
  • Loss of <15m fishing income (annual values, £ million, 2012 prices):
  • Nephrops trawls (0.029);
  • Other trawls (<0.001);
  • Dredges (0.014).
  • Loss of >15m fishing income (annual values, £ million, 2012 prices):
  • Nephrops trawls (0.492);
  • Dredges (0.099);
  • Other trawls (0.002).
  • Loss of <15m fishing income (annual values, £ million, 2012 prices):
  • Nephrops trawls (0.150);
  • Other trawl (<0.001);
  • Dredges (0.018).
Description of non-quantified costs
  • Displacement effects, including conflict with other fishing vessels, environmental impacts in targeting new areas, longer steaming times and increased fuel costs, changes in costs and earnings, gear development and adaptation costs, and additional quota costs.
  • Displacement effects, including conflict with other fishing vessels, environmental impacts in targeting new areas, longer steaming times and increased fuel costs, changes in costs and earnings, gear development and adaptation costs, and additional quota costs.
  • Displacement effects, including conflict with other fishing vessels, environmental impacts in targeting new areas, longer steaming times and increased fuel costs, changes in costs and earnings, gear development and adaptation costs, and additional quota costs.
Quantified Costs on the Activity of Designation of the Site as an MPA (£Million)
Total costs (2014-2033) 0.029 5.043 15.801
Average annual costs 0.001 0.252 0.790
Present value of total costs (2014-2033) 0.021 3.709 11.622
Economic Impacts (£Million)
Total change in GVA (2014-2033) 0.012 2.276 6.58
Average annual change to GVA 0.001 0.114 0.329
Present value of total change in GVA (2014-2033) 0.009 1.674 4.839
Direct and Indirect reduction in Employment 0.0 jobs 2.9 jobs 8.7 jobs
Total costs = Sum of one-off costs and recurring costs for the site summed over the 20 year period.
Average annual costs = Total costs divided by the total number of years under analysis ( i.e. 20).
Present value of total costs = Total costs discounted to their current value, using a discount rate of 3.5%.
Total change in GVA (2014-2033) = The change in direct GVA in the sector for the site summed over the 20 year period.
Average annual change to GVA = Total change in direct GVA in the sector for the site divided by the total number of years under analysis ( i.e. 20).
Present value of total change in GVA (2014-2033) = Total change in direct GVA in the sector for the site discounted to current value, using a discount rate of 3.5%.
Direct and Indirect reduction in Employment = The average (mean) reduction in direct employment in the sector plus the indirect reduction in employment on the sector's suppliers.
Table 4d. Energy Generation [ ARR]

There are no energy generation activities currently operating within the ARR proposed MPA boundary or corresponding buffer zones. Thus, economic costs and management measures associated with energy generation in this proposed MPA are described in light of known possible future developments.

One cable route for a potential future tidal energy generation within a proposed Area of Search (AoS) could pass through the ARR proposed MPA boundary, overlapping numerous MPA features. Under all scenarios ( i.e. lower, intermediate and upper extent), this potential cable route overlaps ocean quahog and burrowed mud features. The features maerl beds, maerl or coarse shell gravel with burrowing sea cucumbers and tide-swept coarse sands with burrowing bivalves also overlap the potential cable route within the MPA under the intermediate and upper scenarios. The MPA feature seagrass beds overlaps the potential cable route, but only under the upper scenario.

As a result of the sensitivity of maerl beds and seagrass beds, additional mitigation measures could be required under the intermediate and upper scenarios. For instance, maerl beds (and maerl or coarse shell gravel with burrowing sea cucumbers) are an OSPAR and BAP designated feature are of high sensitivity to physical change (to another seabed type) and sub-surface abrasion/penetration and of medium sensitivity to water clarity changes and changes in water flow (tidal current). Seagrass beds ( OSPAR and BAP designated) are of high sensitivity to changes in water clarity and of medium sensitivity to permanent change of one marine habitat type to another (through changes in substratum), sub-surface abrasion/penetration and changes in water flow (tidal current). However, it would be expected that mitigation measures for these features would need to be implemented irrespective of any MPA designation and, therefore, the designation would not result in additional costs being incurred in respect of these features.

Under all scenarios ( i.e. lower, intermediate and upper), the potential cable route overlaps 'burrowed mud'; a feature which is not OSPAR or BAP designated. It is possible that additional mitigation measures could be necessary to protect burrowed mud features within the ARR proposed MPA boundary. The conservation objective for burrowed mud is currently to recover and, thus, the SNH management option is to 'remove' the activity. Therefore, seasonal restrictions on cable laying and re-routing of cables may be required under the upper scenarios.

Economic Costs on the Activity of Designation of the Site as an MPA
Lower Estimate Intermediate Estimate Upper Estimate
Assumptions for cost impacts
  • Additional licensing costs to assess potential impacts to features within 1km of proposed activities.
  • Additional licensing costs to assess potential impacts to features within 1km of cable route; and
  • Additional survey costs incurred to inform new licence applications.
  • Additional licensing costs to assess potential impacts to features within 1km of cable route;
  • Additional survey costs incurred to inform new licence applications;
  • Seasonal restrictions on laying cables during the time when ocean quahog larvae are likely to be undergoing settlement (assumed developer could work around these at no additional cost); and
  • Re-routing of cables to avoid sensitive features.
Description of one-off costs
  • Additional assessment costs for licence application - £12k. Application estimated to be submitted in 2024 (tidal energy AoS export cable route).
  • Additional assessment costs for licence application - £12k. Application estimated to be submitted in 2024 (tidal energy AoS export cable route); and
  • Additional survey costs - £5k per linear km of development (8.9km).
  • Additional assessment costs for licence application - £12k. Application estimated to be submitted in 2024 (tidal energy AoS export cable route);
  • Additional survey costs - £5k per linear km of development (12km); and
  • Re-routeing of cable (2026) - £1.01m per km (burrowed mud, 10% of 15km = 1.5km).
Description of recurring costs
  • None.
  • None.
  • None.
Description of non-quantified costs
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Costs of project delays during consenting; risk of deterrent to investment.
Quantified Costs on the Activity of Designation of the Site as an MPA (£Million)
Total costs (2014-2033) 0.012 0.057 1.587
Average annual costs 0.001 0.003 0.079
Present value of total costs (2014-2033) 0.009 0.040 1.054
Total costs = Sum of one-off costs and recurring costs for the site summed over the 20 year period.
Average annual costs = Total costs divided by the total number of years under analysis ( i.e. 20).
Present value of total costs = Total costs discounted to their current value, using a discount rate of 3.5%.
Table 4e. Military [ ARR]

Ten military practice areas (Brodick (X5510), Lamlash (X5513), Pladda (X5522), Stafnish (X5523) and Arran Lamlash Harbour (X5560); and five submarine exercise areas) overlap with the ARR proposed MPA.

The military practice areas Brodick (X5510), Lamlash (X5513) and Arran Lamlash Harbour (X5560) overlap with kelp and seaweed communities on sublittoral sediment (all scenarios), maerl beds (all scenarios), maerl or coarse shell gravel with burrowing sea cucumbers (all scenarios), and ocean quahog (all scenarios). In addition Brodick (X5510) overlaps with burrowed mud (all scenarios) and tide-swept coarse sands with burrowing bivalves (all scenarios), Lamlash (X5513) overlaps with burrowed mud (all scenarios) and seagrass beds (all scenarios), Arran Lamlash Harbour (X5560) overlaps with tide-swept coarse sands with burrowing bivalves (all scenarios), Pladda (X5522) overlaps with burrowed mud (all scenarios) and ocean quahog (all scenarios) and Stafnish (X5523) overlaps with ocean quahog (all scenarios).

The five submarine exercise areas overlap with the features of the ARR proposed MPA to varying degrees under the different extent scenarios.

The features and associated habitats which overlap with military practice areas have not been described as vulnerable to MoD activities in this proposed MPA. It is assumed that management relating to MoD activity will be coordinated through the MoD's Maritime Environmental Sustainability Appraisal Tool ( MESAT) which the MoD uses to assist in meeting its environmental obligations. This process will include operational guidance to reduce significant impacts of military activities on MPAs. It is assumed that the MoD will incur additional costs in adjusting MESAT and other MoD environmental assessment tools in order to consider whether its activities will impact on the conservation objectives of MPAs and also incur additional costs in adjusting electronic charts to consider MPAs. However, these costs will be incurred at national level and hence no site-specific cost assessments have been made.

Economic Costs on the Activity of Designation of the Site as an MPA
Lower Estimate Intermediate Estimate Upper Estimate
Assumptions for cost impacts
  • See National Assessment.
  • See National Assessment.
  • See National Assessment.
Description of one-off costs
Description of recurring costs
Description of non-quantified costs
Quantified Costs on the Activity of Designation of the Site as an MPA (£Million)
Total costs (2014-2033) See national costs See national costs See national costs
Average annual costs See national costs See national costs See national costs
Present value of total costs (2014-2033) See national costs See national costs See national costs
Total costs = Sum of one-off costs and recurring costs for the site summed over the 20 year period.
Average annual costs = Total costs divided by the total number of years under analysis ( i.e. 20).
Present value of total costs = Total costs discounted to their current value, using a discount rate of 3.5%.
Table 4f. Ports and Harbours [ ARR]
There are no ports/harbours within the ARR proposed MPA boundary; however, there are five anchorages/mooring areas which overlap features for designation. Three anchorages/mooring areas overlap kelp and seaweed communities under all scenarios, whilst the other two anchorages/mooring areas overlap ocean quahog and seagrass beds, respectively under all scenarios. Costs may be expected to relocate anchorages/mooring areas to less sensitive areas, although any associated costs are non-quantifiable.
Economic Costs on the Activity of Designation of the Site as an MPA
Lower Estimate Intermediate Estimate Upper Estimate
Assumptions for cost impacts
  • Relocate anchorages/mooring areas away from all features with a high sensitivity.
  • Relocate anchorages/mooring areas away from features with high or medium sensitivity. If not possible to relocate away from sensitive features, relocate to more representative areas.
  • Relocate anchorages/mooring areas away from features with high or medium sensitivity. If not possible to relocate away from sensitive features, relocate to more representative areas.
Description of one-off costs
  • None.
  • None.
  • None.
Description of recurring costs
  • None.
  • None.
  • None.
Description of non-quantified costs
  • Relocation of anchorages/mooring areas away from features of high sensitivity.
  • Relocation of anchorages/mooring areas away from features of high and medium sensitivity.
  • Relocation of anchorages/mooring areas away from features of high and medium sensitivity.
Table 4g. Recreational Boating [ ARR]

A number of anchorages and cruise routes for recreational boating overlap with features proposed for designation within the ARR proposed MPA boundary. There are eight cruise routes intersecting the MPA proposal that overlap with proposed designated features under different extent scenarios; three designated as heavy traffic, three as medium and two as low traffic. Cruising routes are not expected to incur any management or assessment costs.

Under the upper scenario there are seven recreational anchorages that overlap with proposed protected features within the MPA proposal boundary. Overlaps with ocean quahog, kelp and seaweed communities, seagrass beds and shallow tide-swept coarse sands with burrowing bivalves have been identified for the anchorages present. Spatial data show three Crown Estate mooring points within the proposed MPA and a larger mooring area with another two mooring points within it. It is noted, however, that this may be an underestimate and additional mooring points may be present within the mooring area that are not represented by the data. Crown Estate moorings overlap with ocean quahog, seagrass beds, maerl beds, maerl or coarse shell gravel with burrowing sea cucumbers, tide-swept coarse sands with burrowing bivalves and kelp and seaweed communities on sublittoral sediment.

Under the intermediate and lower scenarios, SNH have identified two recreational anchorages that overlap with proposed protected features. A recreational anchorage in Lamlash Bay overlaps with point records of shallow-tide swept coarse sands with burrowing bivalves in the 100m zone and kelp and seaweed communities in the 100m and 200m zones. In Whiting Bay, one recreational anchorage overlaps with point records for seagrass beds.

Economic Costs on the Activity of Designation of the Site as an MPA
Lower Estimate Intermediate Estimate Upper Estimate
Assumptions for cost impacts
  • Relocate anchorages from Whiting Bay which overlap with seagrass beds because this feature has medium sensitivity to surface abrasion pressure associated with anchoring. If not possible to relocate from features, relocate to less sensitive or more representative area; and
  • No additional management required for other anchorages in possible MPA area that overlap with shallow tide-swept coarse sands with burrowing bivalves and kelp and seaweed communities on sublittoral sediment because these features have low sensitivity to surface abrasion associated with anchoring and tend to be more dynamic habitats that can recover quicker from such pressures.
  • Relocate anchorages from Whiting Bay which overlap with seagrass beds because this feature has medium sensitivity to surface abrasion pressure associated with anchoring. If not possible to relocate from features, relocate to less sensitive or more representative area; and
  • No additional management required for other anchorages in possible MPA area that overlap with shallow tide-swept coarse sands with burrowing bivalves and kelp and seaweed communities on sublittoral sediment because these features have low sensitivity to surface abrasion associated with anchoring and tend to be more dynamic habitats that can recover quicker from such pressures.
  • Relocate anchorages and moorings away from seagrass, maerl or coarse shell gravel with burrowing sea cucumbers and maerl beds because these features have medium and high sensitivities to surface abrasion pressure associated with anchoring. If not possible to relocate from features, relocate to less sensitive or more representative area.
Description of one-off costs
  • None.
  • None.
  • None.
Description of recurring costs
  • None.
  • None.
  • None.
Description of non-quantified costs
  • Cost of anchorage relocation.
  • Cost of anchorage relocation.
  • Cost of anchorage relocation.
Table 4h. Telecom Cables [ ARR]
Two telecom cables overlap with the ARR proposed MPA; Lanis 3 for a distance of 1.9km and Sirius North for a distance of 9.1km. Both cables overlap with burrowed mud and ocean quahog under all scenarios. The possible cost associated with re-routing the cable (upper scenario only) and replacement of existing telecom cables at the end of their working life is provided.
Economic Costs on the Activity of Designation of the Site as an MPA
Lower Estimate Intermediate Estimate Upper Estimate
Assumptions for cost impacts
  • Where cables need replacing, additional licensing costs to assess potential impacts to features within the proposed development footprint.
  • Where cables need replacing, additional licensing costs to assess potential impacts to features within the proposed development footprint.
  • Where cables need replacing, additional licensing costs to assess potential impacts to features within the proposed development footprint;
  • Additional survey costs incurred to inform new licence applications; and
  • Re-routing of telecom cable to avoid burrowed mud.
Description of one-off costs
  • Additional assessment costs for licence application - £10k assumed to be in 2024 (assume only one of existing telecom cables will need replacing over assessment period).
  • Additional assessment costs for licence application - £10k assumed to be in 2024 (assume only one of existing telecom cables will need replacing over assessment period).
  • Additional assessment costs for licence application - £10k assumed to be in 2024 (assume only one of existing telecom cables will need replacing over assessment period);
  • Additional survey costs (£5k per linear km of development) - £45k (worst case); and
  • Re-routeing of cable to avoid burrowed mud feature (£1.01m per km - approximately 1km of additional cable required).
Description of recurring costs
  • None
  • None
  • None
Description of non-quantified costs
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Costs of project delays during consenting; risk of deterrent to investment.
  • Costs of project delays during consenting; risk of deterrent to investment.
Quantified Costs on the Activity of Designation of the Site as an MPA (£Million)
Total costs (2014-2033) 0.010 0.010 1.065
Average annual costs 0.001 0.001 0.053
Present value of total costs (2014-2033) 0.007 0.007 0.707
Total costs = Sum of one-off costs and recurring costs for the site summed over the 20 year period.
Average annual costs = Total costs divided by the total number of years under analysis ( i.e. 20).
Present value of total costs = Total costs discounted to their current value, using a discount rate of 3.5%.

Human activities that would benefit from designation of the site as an MPA

Table 5. Human Activities that would Benefit from Designation of the Site as an MPA [ ARR]
Activity Description Lower Estimate Intermediate Estimate Upper Estimate
Tourism Coastal areas are well represented when considering the locations of various tourist related sites within Scotland with a range of site types present in all regions including the West. Where significant impacts to recreational boating or water sports have been identified for the site, there could also be consequential impacts on tourism. Tourism may benefit from the designation of the MPA as an added attraction to the destination. In addition, there may also be indirect benefits to tourism as a result of benefits to some water sports activities, for example, recreational angling and diving. The intermediate management measures applied to sector activities will result in an increase of the beneficial impacts seen in the lower estimate. The upper management measures applied to sector activities will result in an increase of the beneficial impacts seen in the lower and intermediate estimates.
Water Sports - Sea Angling Sea angling is carried out along most of the Scottish coastline within 6nm ( SSACN). ARR proposed MPA is a coastal site and is located wholly within 6nm of the UK coastline. Therefore, sea angling overlaps with all features and their corresponding extents within the proposed MPA. No management restrictions upon this activity are required. Sea anglers could benefit from any on-site positive effects resulting from the MPA designation and corresponding management restrictions on sector activities including an increase in the size and diversity of species which in turn is expected to increase the attraction of a site for anglers (Fletcher et al. 2012). The intermediate management measures applied to sector activities will result in an increase of the beneficial impacts seen in the lower estimate. The upper management measures applied to sector activities will result in an increase of the beneficial impacts seen in the lower and intermediate estimates.
Water Sports - Scuba diving There are five recreational dive sites located within ARR proposed MPA, three of which are wrecks (Trygon, Strathdee, unnamed wreck) and two of which are submarine wrecks (U33 and HMS Sealion). Under the lower scenarios, two dive sites overlap with proposed features of Ocean quahog and Burrowed mud. The intermediate scenario has four dive sites overlap with proposed features of Ocean quahog and Burrowed mud. The Upper scenario has all five dive sites overlap with feature extents, four overlap with 'Ocean quahog' and 'Burrowed mud' and one dive site overlaps with 'Seagrass beds' and 'Kelp and seaweed communities on sediment'. No management restrictions upon this activity are required. The added protection offered by an MPA designation and management measures placed upon sector activities may increase the aesthetic attraction of the dive sites through an improved marine ecosystem and a reduction in degradation to the wreck sites. The intermediate management measures applied to sector activities will result in an increase of the beneficial impacts seen in the lower estimate. The upper management measures applied to sector activities will result in an increase of the beneficial impacts seen in the lower and intermediate estimates.

Human activities that are present but which would be unaffected by designation of the site as an MPA

Table 6. Human Activities that are present but which would be Unaffected by Designation of the Site as an MPA [ ARR]
Activity Description
Power Interconnectors One existing power interconnector and one consented power interconnector (Western HVDC Link) overlap with the ARR proposed MPA. The existing power interconnector overlaps with kelp and seaweed communities on sublittoral sediment (all scenarios) and ocean quahog (all scenarios). In addition, the existing power interconnector overlaps with seagrass beds (upper scenario only) and tide-swept coarse sands with burrowing bivalves (upper scenario). Within a 1km buffer, the existing power interconnector also overlaps with maerl beds (all scenarios), maerl or coarse shell gravel with burrowing sea cucumbers (all scenarios), seagrass beds (all scenarios) and tide-swept coarse sands with burrowing bivalves (intermediate and upper scenarios). No cost impacts are foreseen, as it is assumed that there will be no review of the existing consent. The consented power interconnector overlaps with burrowed mud (all scenarios) and ocean quahog (all scenarios). No cost impacts are foreseen as the project is already consented and it is assumed that there will be no review of the existing consent.

Social and Distributional Analysis of Impacts from Designation of the Site as an MPA

Table 7a. Social Impacts Associated with Quantified and Non-Quantified Economic Costs [ ARR]
Sector Potential Economic Impacts Economic Costs and GVA ( PV) Area of Social Impact Affected Mitigation Significance of Social impact
Commercial Fisheries Loss of traditional fishing grounds with consequent loss in landings, value of landings and hence GVA. Annual Average Loss in Value of Landings*:
Lower: <£0.01m
Intermediate: £0.25m
Upper: £0.79m

Annual Average Loss in GVA (direct and indirect)*:
Lower: <£0.01m
Intermediate: £0.11m
Upper: £0.33m
Culture and heritage - impact on traditions from loss of fishing grounds. Health: xx (for individuals affected who do not find alternative employment)
If the loss in GVA significant enough, risk of job losses (direct and indirect) Job Losses*:
Lower: 0.0 jobs
Intermediate: 2.9 jobs
Upper: 8.7 jobs
A reduction in employment can generate a wide range of social impacts which, in turn, can generate a range of short and long term costs for wider society and the public purse:
  • Healt h (increase in illness, mental stress, loss of self esteem
and risk of depression);
  • Increase in crime; and
  • Reduction in f u ture emp lo y me n t prospects/future earnings.
Support to retrain those affected and for the promotion of new small businesses in fisheries dependent areas.
Displacement Effects Not Quantified Quantified impact on jobs assume worst case scenario ( i.e. no redistribution of effort). In reality displacement effects likely to occur with socio-economic consequences:
  • Empl o y m e nt - reduced employment due to changes in costs and earnings profile of vessels ( e.g. increased fuel costs, gear development and adaption costs, additional quota costs);
  • Conflict/Loss of social cohesion - diminishing fishing grounds may increase conflict with other vessels/gear types, increase social tensions within fishing communities and lead to a loss of social cohesion among fleets. Could also lead to increased operating costs as a result of lost or damaged gear. Equally, gear conflict could reduce where gears are restricted/prohibited;
  • Healt h - increased risks to the safety of fishers and vessels and increased stress due to moving to lesser known areas;
  • E n v ironmental - increased impact in targeting new areas, longer streaming times and increased fuel consumption; and
  • Cultur e a nd her i tag e - change in traditional fishing patterns/ activities.
xx
Energy Generation Additional operational costs Quantified Cost Impact (2014-2033): £0.009 - 1.054m Future employment opportunities - if increased operational costs associated with management measures render projects unviable or restrict project size there will be a negative impact on economic activity and job creation in this sector. xx (under the upper scenario)
Costs associated with delays during the consenting process Loss of investor confidence (developments do not proceed) Not Quantified

Future employment opportunities - if the delays deter investments there will be a negative impact on economic activity and future job creation in this sector.

Environment - possible negative impact in relation to climate change and the ability of the Scottish Government to meet its 2020 renewables targets, decarbonisation targets and climate change targets. There would also be consequent financial implications of climate change impacts.

This impact is uncertain and is only likely to arise under the upper scenario. JNCC's current advice is that the intermediate scenario represents their best view on management requirements.

xxx (under the upper scenario only)
Impacts: xxx - significant negative effect; xx - possible negative effects; x - minimal negative effect, if any; 0 - no noticeable effect expected.
* These estimates assume zero displacement of fishing activity and hence are likely to overestimate the costs.
Table 7b. Distribution of Quantified Economic Costs for Commercial Fisheries and Fish Processors (assuming zero displacement of fishing activity) - Location, Age and Gender [ ARR]
Sector/Impact Location Age Gender
Region Ports* Rural, Urban, Coastal or Island Children Working Age Pensionable Age Male Female

Commercial Fisheries

Reduction in landed value, GVA and employment

xx

West North-West (and Belfast)

xx

Largest employment impacts in:

Campbeltown (59%), Ayr (22%), Belfast (11%), Oban (7%)

xx Coastal Urban and Rural

xxx

Potentially significant negative effect if parent loses job/becomes unemployed.

xxx

Potentially significant negative effect if individuals lose job/become unemployed

xx

Potential negative effect if retirees own affected vessels or live in households affected by unemployment.

xxx

0.0-8.7 job losses

Potentially significant negative effect on individuals that lose job/become unemployed.

xxx

Potentially significant negative effect if member of household loses job/becomes unemployed.

Fish Processors

Reduction in local landings at landing ports

xx

West

xx

Campbeltown Troon and Saltcoates Tarbet Carradale Ardrossan Girven

xx

Coastal

Urban and Rural

xx xx 0 xx xx
Impacts: xxx - significant negative effect; xx - possible negative effects; x - minimal negative effect, if any; 0 - no noticeable effect expected. * Based on value of landings by home port affected under intermediate scenario.
Table 7c. Distribution of Quantified Economic Costs for Commercial Fisheries and Fish Processors (assuming zero displacement of fishing activity) - Fishing Groups, Income Groups and Social Groups [ ARR]
Sector/Impact Fishing Groups Income Groups Social Groups
Vessel Category <15m >15m* Gear Types/Sector* 10% Most Deprived Middle 80% 10% Most Affluent Crofters Ethnic minorities With Disability or Long-term Sick

Commercial Fisheries

Reduction in landed value, GVA and employment

Lower: N/A Upper: >15m Nephrops trawls Other trawls Dredges xx xx

x

Information only available on average incomes not the distribution of income. Therefore, not clear whether this group will be affected.

0 No breakdown of fisherman employment by ethnic origin.

0

No employment data but unlikely to be employed in fisheries.

Fish Processors

Reduction in local landings at landing ports

Shellfish: xxx Demersal: xx Pelagic: 0 xx xx 0 0 No breakdown of fisherman employment by ethnic origin.

0

No employment data but unlikely to be employed in fisheries.

Impacts: xxx - significant negative effect; xx - possible negative effects; x - minimal negative effect, if any; 0 - no noticeable effect expected.
* Based on costs to gear types/sectors and vessel categories affected under the intermediate scenario.

Potential Contribution of the Site to an Ecologically-Coherent Network

Table 8. Overview of Features Proposed for Designation and how these contribute to an Ecologically Coherent Network of MPAs [ ARR]
Feature Name Representation Replication Linkages Geographic Range
and Variation
Resilience
Burrowed mud Provides representation for the seapens and burrowing megafauna type of burrowed mud in OSPAR Region III. Represents one of two recommended areas of this type of burrowed mud within OSPAR Region III and one of five areas within all of Scotland's seas. Not currently understood for burrowed mud. Burrowed mud occurs within a range of environments. The recommended MPA areas would provide representation for the geographic range of the firework anemone type of burrowed mud. Seapens and burrowing megafuna are considered to be threatened and/or declining by the OSPAR commission. MPA is expected to help increase resilience for the feature.
Kelp and seaweed communities Provides representation for kelp and seaweed communities in OSPAR Region III. No information available.
Maerl beds Provides representation for maerl beds in OSPAR Region III. No information available. Maerl beds are listed by OSPAR as threatened and/or declining. MPA area may increase resilience.
Maerl or coarse shell gravel with burrowing sea cucumbers Provides representation for maerl or coarse shell gravel with burrowing sea cucumbers in OSPAR Region III. No information available.
Seagrass beds Provides representation for seagrass beds in OSPAR Region III, including what is considered to be the largest bed within Firth of Clyde. No information available. No information available. Seagrass bed within Whiting Bay is believed to be the largest within the Firth of Clyde. No information available.
Shallow tide-swept coarse sands with burrowing bivalves Provides representation for the shallow tide-swept coarse sands with burrowing bivalves in OSPAR Region III. Provides representation for one of two potential MPA areas where it is known to occur in Scotland's seas. Not currently understood for shallow tide-swept coarse sands with burrowing bivalves. Shallow tide-swept coarse sands with burrowing bivalves occur in OSPAR Regions II and III in Scotland's seas. This MPA represents a distinct contribution to coverage of the feature's geographic range. Not considered to be threatened and/or declining by the OSPAR commission. Feature only occurs in OSPAR Regions II and III.
Ocean quahog Provides representation for ocean quahog in OSPAR Region III. Not currently understood for ocean quahog. Ocean quahog is considered to be threatened and/or declining by the OSPAR commission. MPA is expected to help increase resilience for this feature.
Herring spawning grounds No information available.
JNCC (pers. comm.); SNH and JNCC. (2012). Assessment of the potential adequacy of the Scottish MPA network for MPA search features: summary of the application of the stage 5 selection guidelines.
Available online from: http://www.scotland.gov.uk/Topics/marine/marine-environment/mpanetwork/engagement/270612.

Anticipated Benefits to Ecosystem Services

Table 9. Summary of Ecosystem Services Benefits arising from Designation of the Site as an MPA [ ARR]
Services Relevance
to Site
Baseline Level Estimated Impacts of Designation Value Weighting Scale of Benefits Confidence
Lower Intermediate Upper
Fish for human consumption High. Site fishing grounds are valuable and contain herring spawning grounds and nursery habitats. Stocks not at MSY, maerl beds need to recover Low Moderate Moderate High, significant commercial landings from site. Commercially valuable species supported. Moderate Moderate, uncertainty mainly in response of habitats to management measures.
Fish for non-human consumption Stocks reduced from potential maximum Protection of herring spawning grounds and shellfish beds can contribute to maintenance and recovery of stocks - benefits are higher under stronger protection measures but ecosystem response is uncertain. Protecting habitats with primary productivitiy ( e.g. seagrass beds) also supports food webs and marine fish stocks.
Gas and climate regulation Moderate, extent of relevant benthic communities uncertain Low - Moderate. Extent of benthic plant communities uncertain Low - Moderate, protection of seagrass beds under all scenarios. Moderate, social cost of carbon Low Low, due to uncertain extent of seagrass beds and other benthic communities
Natural hazard protection Low Low Nil Low Nil High
Regulation of pollution Moderate, benthic communities regulate pollution Low, major water quality issues to be dealt with through WFD Nil Low, if protection allows recovery of habitats, service could increase Low, water quality in this area not affecting human welfare Minimal, increase in this service unlikely to substitute existing water treatment High
Non-use value of natural environment Moderate - High, variety of protected features, and contribution of the site to MPA network, have non-use value. Non-use value of the site may decline Low, maintain features of site Low - Moderate, Protection of features of site from minor decline Moderate - protection of features of site from decline, and/or allowing some recovery Moderate - range of features means strong contribution to halting decline of marine biodiversity. Moderate Low - Moderate, extent of features, responses to management measures, and value to society all uncertain
Recreation Moderate - High, active dive sites, angling and recreational boating routes Moderate - High, including tourism activities. Angling may be reduced by damage to features Low - Moderate, Angling benefits and biodiversity encountered by divers and recreational boaters are protected from possible decline, and could recover under upper scenario. Designation could enhance tourism activity. Moderate, extensive activities, but substitutes are available. Low - Moderate, enhancement of activities through improved angling and visitor experiences. Low - Moderate, extent of change from management measures uncertain
Research and Education Moderate Low, small number of biological features have research value and there are substitutes Minimal, no change in most of the characteristics of site Low, protection of key characteristics of site from decline, improving future research opportunities Low for individual features. Moderate for opportunity to understand response of wide range of features to management Low Low - Moderate, extent to which research uses site in future uncertain
Total value of changes in ecosystem services Low for lower scenario, moderate for upper scenarios Moderate Low

Human Activities which Occur within the Proposed MPA South Arran

Fishing Activities which Occur within the Proposed MPA South Arran

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