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] | ||||
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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. |
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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] | ||
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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) |
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Aquaculture (Shellfish) |
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Commercial Fisheries |
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Energy Generation |
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Military |
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Ports and Harbours |
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Recreational Boating |
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Telecom Cables |
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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] | ||
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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] | |||||||||
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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] | |
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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] | ||||||||||||||||
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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] | ||
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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 |
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Description of one-off costs |
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Description of recurring costs |
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Description of non-quantified costs |
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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] | ||
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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. |
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Economic Costs on the Activity of Designation of the Site as an MPA | |||
Lower Estimate | Intermediate Estimate | Upper Estimate | |
Assumptions for cost impacts |
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Description of one-off costs |
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Description of recurring costs |
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Description of non-quantified costs |
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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] | ||
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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. |
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Economic Costs on the Activity of Designation of the Site as an MPA | |||
Lower Estimate | Intermediate Estimate | Upper Estimate | |
Assumptions for cost impacts |
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Description of one-off costs |
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Description of recurring costs |
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Description of non-quantified costs |
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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] | ||
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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. |
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Economic Costs on the Activity of Designation of the Site as an MPA | |||
Lower Estimate | Intermediate Estimate | Upper Estimate | |
Assumptions for cost impacts |
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Description of one-off costs |
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Description of recurring costs |
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Description of non-quantified costs |
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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] | ||
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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. |
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Economic Costs on the Activity of Designation of the Site as an MPA | |||
Lower Estimate | Intermediate Estimate | Upper Estimate | |
Assumptions for cost impacts |
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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] | ||
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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 |
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Description of recurring costs |
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Description of non-quantified costs |
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Table 4g. Recreational Boating | [ ARR] | ||
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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. |
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Economic Costs on the Activity of Designation of the Site as an MPA | |||
Lower Estimate | Intermediate Estimate | Upper Estimate | |
Assumptions for cost impacts |
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Description of one-off costs |
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Description of recurring costs |
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Description of non-quantified costs |
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Table 4h. Telecom Cables | [ ARR] | ||
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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 |
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Description of one-off costs |
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Description of recurring costs |
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Description of non-quantified costs |
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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
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] | |
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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
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] | ||||
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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
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