Fisheries Management Measures within Scottish Inshore Marine Protected Areas (MPAs) and Proposed Priority Marine Feature (PMF) Management Areas - High level Site Summary Details and Potential Impacts of Proposed Fisheries Management Measures

Overview of site and area details and potential impacts of the proposed fisheries management measures within Scottish Inshore Marine Protected Areas (MPAs) and proposed Priority Marine Feature (PMF) management areas


7. Argyll Scottish Marine Region MPAs

Due to the complexity and large number of areas and sites, ecosystem services data has been produced at a regional level, allowing for a more consistent assessment across wider geographical scales while still capturing key variations in ecological, social, and economic value.

Table 1: Estimated Ecosystem Service Impacts of proposed fisheries management measures (over 20 years) for Argyll Region

Total value of changes in ecosystem services

Option 1 Min

Option 1 Max

Option 2 Min

Option 2 Max

Benefits

Minimal

Minimal

Minimal

Minimal

Costs

Nil

Nil

Nil

Nil

Net Impacts

Neutral

Neutral

Neutral

Neutral

7.1. Site: Sea of the Hebrides NCMPA

Protected features:

  • Basking Shark
  • Fronts
  • Marine Geomorphology of the Scottish Shelf Seabed (Inner Hebrides Carbonate Production Area).
  • Minke Whale

Fronts are not discussed further as they are not a protected feature for which fisheries management measures are required.

Feature conditions:

  • Basking Shark - Favourable
  • Marine Geomorphology of the Scottish Shelf Seabed (Inner Hebrides Carbonate Production Area) - Favourable
  • Minke Whale - Favourable

Conservation objectives:

  • Basking Shark - Conserve
  • Marine Geomorphology of the Scottish Seabed (Inner Hebrides Carbonate Production Area) – Conserve
  • Minke Whale - Conserve

Option 1:*

The descriptions in bold text e.g. Hatching 1, refer to the symbology used in the maps that follow the description of the measures for each option. The proposed management measures for Sea of the Hebrides NCMPA are as follows:

  • Set nets (not including fyke nets) prohibited from April till the end of October. (Hatching 1)
  • Set nets (not including fyke nets and tangle nets) prohibited from April till the end of October (Hatching 2)

Additional measures from overlapping sites that are included as part of this consultation and overlapping sites that already have measures in place that are for the same fishing gear types

  • Set nets (including fyke nets) prohibited in overlapping areas with Coll and Tiree SPA and West Coast of the Outer Hebrides SPA shallower than 60m, based on maximum dive depth of eider, and the Small Isles NCMPA (includes part of Canna and Sanday SPA) that doesn’t overlap with the Rum SPA (Hatching 3)
  • Demersal set nets prohibited from April till the end of October. Pelagic set nets prohibited in overlapping areas with Coll and Tiree SPA that are deeper than 60m, based on presence of eider (Fill 4)
  • Longlines (until technical measures come into force) and set nets (including fyke nets) prohibited in overlapping areas with Rum SPA (includes part of Canna and Sanday SPA) and Mingulay and Berneray SPA. (Hatching 5)
  • Set nets (including fyke nets) and hydraulic dredge already prohibited through overlaps with current designations, East Mingulay SAC, Treshnish Isles SAC and Loch Sunart to the Sound of Jura NCMPA, that already have management measures in place (Fill 6)
  • Set nets (not including fyke nets) prohibited in overlapping area with the Inner Hebrides and the Minches SAC (Hatching 7)
  • Set nets except tangle nets and fyke nets prohibited in tangle net exemption area that overlaps with the Inner Hebrides and the Minches SAC (Hatching 8)
  • Demersal set nets (including fyke nets) prohibited February till end of August and pelagic set nets prohibited February till mid-October in overlapping portion of Rum SPA deeper than 32.7m but shallower than 177m based on maximum dive depth of guillemot and presence of guillemot and Manx shearwater (Hatching 9)
  • Longlines (until technical measures come into force) and set nets (including fyke nets) prohibited February till mid-October in overlapping portion of the Rum SPA shallower than 32.7m, based on mean dive depth (maximum unknown) and presence of Manx shearwater (Fill 10)
  • Full site closure to hydraulic dredge

Measures for demersal mobile gear have not been developed for this site for the Inner Hebrides Carbonate Production Area as these are being addressed through the overlapping proposed PMF management areas. There are 3 areas proposed for the protection of maerl and seagrass beds that overlap this site: Ulva and Loch na Keal (Mull), Loch a’Chumhainn (Mull) and Sound of Iona (Mull).

Specific management measures haven’t been proposed for creels but the further development and adoption of existing best practice to reduce or limit entanglement of basking sharks and minke whales in creel ropes is being explored through the development of the Future Catching Policy under technical measures to reduce bycatch of marine sensitive species, specifically exploring the use of sinking ground lines in creels.

Figure 1. Map of measures proposed under option 1:

Option 1 map shows the Sea of the Hebrides Nature Conservation Marine Protected Area (NCMPA), covering waters off the west coast of Scotland, From the southwest coast of Mull to Loch nam Madadh and the mouth of Loch Dunvegan. 10 zones are marked on the map where measures will vary, largely where another site overlaps or exists within the NCMPA. The measures for these zones are not detailed on the map. No full site measures are detailed on the map.

*This site will have other demersal mobile measures that may apply from the overlapping portions with the proposed PMF management areas, Small Isles and Shiant East Bank NCMPAs and Loch nam Madadh SAC that aren’t shown on the map for this option.

  • Small Isles NCMPA has zoned measures for demersal trawl, demersal seine net, beam trawl and mechanical dredge
  • Loch nam Madadh SAC would prohibit demersal trawl, demersal seine net, beam trawl, mechanical dredge in the overlapping portion.
  • The proposed PMF management areas would prohibit all demersal mobile gear from the entire area that overlaps. (see section below for overlapping areas)

Please check the Option 1 or single management overlapping site and area maps to see proposed demersal mobile measures under Option 1.

Option 2:*

  • Full site closure to set nets (not including fyke nets) and hydraulic dredge

Figure 2. Map of measures proposed under option 2:

Option 2 map shows the Sea of the Hebrides Nature Conservation Marine Protected Area (NCMPA), overing waters off the west coast of Scotland, From the southwest coast of Mull to Loch nam Madadh and the mouth of Loch Dunvegan. Set nets (not including fyke nets) and hydraulic dredges are proposed for prohibition throughout the NCMPA. The areas where the site overlaps with Mingulay SAC, Treshnish Isles SAC and Loch Sunart to the Sound of Jura NCMPA are marked on the map; in these areas set nets (including fyke nets) and hydraulic dredges are already prohibited.

* The measures for Option 2 proposals only come from gear types prohibited in non-overlapping areas. Overlapping restrictions may still apply from overlapping sites or areas dependent on the decisions taken for that site or area. Overlaps showing are from designations that currently have fisheries management measures in place.

Overlapping sites and areas included in this consultation

This NCMPA overlaps with:

  • Inner Hebrides and the Minches SAC, Loch nam Madadh SAC and Small Isles NCMPA
  • Coll and Tiree, Canna and Sanday, Rum, Mingulay and Berneray and West Coast of the Outer Hebrides SPAs
  • South of Muck and Bo Fascadale, Muck and Godag, Eigg, South-East, Ulva and Loch na Keal (Mull), Loch a’Chumhainn (Mull), Sound of Iona (Mull), Little Minch, East of Mingulay and Oberon bank proposed PMF management areas.

Estimated Socio-economic impacts of proposed measures for Sea of the Hebrides NCMPA

No socio-economic impacts are anticipated for this site, based on available data, in relation to:

  • Average annual loss in value of landings (£000s, 2022 prices)
  • Direct + indirect reduction in GVA (PV) impact (£000s) 20 years
  • Average (mean) number of direct + indirect jobs (year on year, over 20 years), Full Time Equivalents
Table 2: Estimated Environmental impacts of proposed fisheries management measures for Sea of the Hebrides NCMPA

Environmental Impact

Option 1

Option 2

Benefits within the sites/areas

Major beneficial

Major beneficial

Spill over benefits

None

None

Displacement effects

None

None

Effects from other gear types

None

None

Estimated overall environmental impact

Major beneficial

Major beneficial

7.2. Site: Moine Mhor SAC

Protected features:

  • Intertidal mudflats and sandflats

Feature conditions:

  • Intertidal mudflats and sandflats - Favourable

Conservation objectives:

  • Intertidal mudflats and sandflats - Maintain

The proposed management measure for Moine Mhor SAC is as follows:

Single Proposed Management Option:

  • Full site closure to mechanical dredge and hydraulic dredge

Figure 3. Map of measures proposed:

Single option map of Moine Mhor Special Area of Conservation (SAC), which is all shallower than 10m and largely composed of intertidal mudflats and sandflats. Mechanical and hydraulic dredge are prohibited throughout the whole marine component of the site.

A full site level of protection from the specified gear has been identified as the only suitable option in enabling the achievement of the desired level of protection for the feature in question.

Estimated Socio-economic impacts of proposed measures for Moine Mhor SAC

No socio-economic impacts are anticipated for this site, based on available data in relation to:

  • Average annual loss in value of landings (£000s, 2022 prices)
  • Direct + indirect reduction in GVA (PV) impact (£000s) 20 years
  • Average (mean) number of direct + indirect jobs (year on year, over 20 years), Full Time Equivalents
Table 3: Estimated Environmental impacts of proposed fisheries management measures for Moine Mhor SAC

Environmental Impact

Single Proposed Management Option

Benefits within the sites/areas

Minor beneficial

Spill over benefits

None

Displacement effects

None

Effects from other gear types

None

Estimated overall environmental impact

Benefit

 

7.3. Site: Eileanan agus Sgeiran Lios mór SAC

Protected features:

  • Harbour seal

Feature conditions:

  • Harbour seal - Favourable

Conservation objectives:

  • Harbour seal – Maintain

The proposed management measure for Eileanan agus Sgeiran Lios mór SAC is as follows:

Single Proposed Management Option:*

  • Full site closure to set nets (including fyke nets), pelagic seine and ring nets
  • Hydraulic dredge would be prohibited in overlapping areas with the Inner Hebrides and the Minches SAC from proposed measures and is already prohibited in overlapping areas with the Loch Sunart to Sound of Jura NCMPA from management measures already in place.

*Set nets (including fyke nets) are also already prohibited in in overlapping areas with the Loch Sunart to Sound of Jura NCMPA from management measures already in place.

Figure 4. Map of measures proposed:

Single option map of Eileanan agus Sgeiran Lios mor Special Area of Conservation (SAC), five discrete areas surrounding islands and skerries around Lismore. The three southern areas overlap with Loch Sunart to the Sound of Jura and the Inner Hebrides and Minches SACs, where set nets (including fyke ents) and hydraulic dredges are already prohibited. Set nets (including fyke nets) are also prohibited in the northern areas. Pelagic Seine (including ring nets) are prohibited throughout the whole site.

A full site level of protection from the specified gear has been identified as the only suitable option in enabling the achievement of the desired level of protection for the feature in question.

Estimated Socio-economic impacts of proposed measures for Eileanan agus Sgeiran Lios mór SAC

No socio-economic impacts are anticipated for this site, based on available data in relation to:

  • Average annual loss in value of landings (£000s, 2022 prices)
  • Direct + indirect reduction in GVA (PV) impact (£000s) 20 years
  • Average (mean) number of direct + indirect jobs (year on year, over 20 years), Full Time Equivalents
Table 4: Estimated Environmental impacts of proposed fisheries management measures for Eileanan agus Sgeiran Lios mór SAC

Environmental Impact

Single Proposed Management Option

Benefits within the sites/areas

Minor beneficial

Spill over benefits

None

Displacement effects

None

Effects from other gear types

None

Estimated overall environmental impact

Benefit

7.4. Site: South-East Islay Skerries SAC

Protected features:

  • Harbour seal

Feature conditions:

  • Harbour seal - Favourable

Conservation objectives:

  • Harbour seal – Maintain

The proposed management measure for South-East Islay Skerries SAC is as follows:

Single Proposed Management Option:*

  • Full site closure to set nets (including fyke nets), pelagic seines, and ring nets.

Figure 5. Map of measures proposed:

Single option map of South-East Islay Skerries Special Area of Conservation (SAC) a straight edged area extending from the Islay coast, with only small parts of the edges deeper than 20m. The full site is closed to pelagic seine (including ring-nets) and set nets (including fyke nets).

A full site level of protection from the specified gear has been identified as the only suitable option in enabling the achievement of the desired level of protection for the feature in question.

*This site will have other demersal mobile measures that may apply from the overlapping portions with the proposed PMF management area that aren’t shown on the map for this option.

  • The proposed PMF management area would prohibit all demersal mobile gear from the entire area that overlaps. (see section below for overlapping area)

Please check the Option 1 or single management overlapping area map to see proposed demersal mobile measures.

Overlapping area included in this consultation

This SAC overlaps with Loch a' Chnuic and Ardilistry (Islay) proposed PMF management area.

Estimated Socio-economic impacts of proposed measures for South-East Islay Skerries SAC

No socio-economic impacts are anticipated for this site, based on available data in relation to:

  • Average annual loss in value of landings (£000s, 2022 prices)
  • Direct + indirect reduction in GVA (PV) impact (£000s) 20 years
  • Average (mean) number of direct + indirect jobs (year on year, over 20 years), Full Time Equivalents
Table 5: Estimated Environmental impacts of proposed fisheries management measures for South-East Islay Skerries SAC

Environmental Impact

Single Proposed Management Option

Benefits within the sites/areas

Minor beneficial

Spill over benefits

None

Displacement effects

None

Effects from other gear types

None

Estimated overall environmental impact

Benefit

7.5. Site: Coll and Tiree SPA

Protected features:

  • Eider - non-breeding
  • Great northern diver - non-breeding

Feature conditions:

  • Eider - Favourable
  • Great northern diver - Favourable

Conservation objectives:

  • Eider - Maintain
  • Great northern diver - Maintain

The proposed management measures for Coll and Tiree SPA are as follows.

Option 1:

  • Set nets (including fyke nets) prohibited all year in areas down to 60m based on presence and maximum dive depth of eider
  • In areas deeper than 60m, demersal set nets prohibited from April till end of October due to overlap with the Sea of the Hebrides NCMPA and pelagic set nets prohibited due to presence of all protected features
  • Full site closure to hydraulic dredge.

Figure 6. Map of measures proposed under option 1:

Map shows Coll and Tiree SPA, an area surrounding Tiree and extending up the north coast of Coll. Most of the area is shallower than 60m. Small slivers of the southeastern edge, the northwestern tip, and the area north of Coll being deeper than 60m. In areas shallower than 60m set nets (including fyke nets) are prohibited. In deeper areas demersal set nets prohibited April till end of October and pelagic set nets are prohibited year round. Hydraulic dredge is prohibited throughout the site.

Option 2:

  • Full site closure to set nets (including fyke nets) and hydraulic dredge.

Figure 7. Map of measures proposed under option 2:

Map shows Coll and Tiree SPA, an area surrounding Tiree and extending up the north coast of Coll. Set nets (including fyke nets), and hydraulic dredges are prohibited throughout the site.

Overlapping sites included in this consultation

This SPA overlaps with the Sea of the Hebrides NCMPA and Inner Hebrides and the Minches SAC.

Estimated Socio-economic impacts of proposed measures for Coll and Tiree SPA

No socio-economic impacts are anticipated for this site, based on available data in relation to:

  • Average annual loss in value of landings (£000s, 2022 prices)
  • Direct + indirect reduction in GVA (PV) impact (£000s) 20 years
  • Average (mean) number of direct + indirect jobs (year on year, over 20 years), Full Time Equivalents
Table 6: Estimated Environmental impacts of proposed fisheries management measures for Coll and Tiree SPA

Environmental Impact

Option 1

Option 2

Benefits within the sites/areas

Moderate beneficial

Moderate beneficial

Spill over benefits

None

None

Displacement effects

None

None

Effects from other gear types

None

None

Estimated overall environmental impact

Benefit

Benefit

7.6. Site: Sound of Gigha SPA

Protected features:

  • Eider - non-breeding
  • Great northern diver - non-breeding
  • Red-breasted merganser - non-breeding
  • Slavonian grebe - non-breeding

Feature conditions:

  • Eider - Favourable
  • Great northern diver - Favourable
  • Red-breasted merganser - Favourable
  • Slavonian grebe - Favourable

Conservation objectives:

  • Eider - Maintain
  • Great northern diver - Maintain
  • Red-breasted merganser - Maintain
  • Slavonian grebe - Maintain

The proposed management measures for Sound of Gigha SPA are as follows.

Option 1:*

  • Set nets (including fyke nets) prohibited in areas down to 60m based on presence and maximum dive depth of eider.
  • Pelagic set nets prohibited in areas deeper than 60m based on presence of all species.
  • Full site closure to hydraulic dredges.

Figure 8. Map of measures proposed under option 1:

Map shows Sound of Gigha SPA, an area of waters running from Machrihanish in the south to the mouth of Loch Caolisport in the north, extending seawards to take in the waters surrounding Gigha. Almost all of the site is shallower than 60m, with only a small sliver northwest of Gigha being deeper. In this deeper area pelagic set nets are prohibited. In the rest of the site set nets (including fyke nets) are prohibited. Hydraulic dredges are prohibited throughout the site.

*This site will have other demersal mobile measures that may apply from the overlapping portions with the proposed PMF management areas that aren’t shown on the map for this option.

  • The proposed PMF management areas would prohibit all demersal mobile gear from the entire area that overlaps. (see section below for overlapping areas)

Please check the Option 1 or single management overlapping area maps to see proposed demersal mobile measures under Option 1.

Option 2:*

  • Full site closure to set nets (including fyke nets) and hydraulic dredges

Figure 9. Map of measures proposed under option 2:

Map shows Sound of Gigha SPA, an area of waters running from Machrihanish in the south to the mouth of Loch Caolisport in the north, extending seawards to take in the waters surrounding Gigha. Set nets (including fyke nets), and hydraulic dredges are prohibited throughout the site.

* The measures for Option 2 proposals only come from gear types prohibited in non-overlapping areas. Overlapping restrictions may still apply from overlapping sites or areas dependent on the decisions taken for that site or area.

Overlapping sites and areas included in this consultation

This SPA overlaps with the Inner Hebrides and the Minches SAC, West Loch Tarbert (Kintyre), Gigha North-east and Gigha South proposed PMF management areas.

Estimated Socio-economic impacts of proposed measures for Sound of Gigha SPA

No socio-economic impacts are anticipated for this site, based on available data in relation to:

  • Average annual loss in value of landings (£000s, 2022 prices)
  • Direct + indirect reduction in GVA (PV) impact (£000s) 20 years
  • Average (mean) number of direct + indirect jobs (year on year, over 20 years), Full Time Equivalents
Table 7: Estimated Environmental impacts of proposed fisheries management measures for Sound of Gigha SPA

Environmental Impact

Option 1

Option 2

Benefits within the sites/areas

Moderate beneficial

Moderate beneficial

Spill over benefits

None

None

Displacement effects

None

None

Effects from other gear types

None

None

Estimated overall environmental impact

Benefit

Benefit

7.7. Site: North Colonsay and Western Cliffs SPA

Protected features:

  • Chough - breeding and non-breeding
  • Guillemot – breeding
  • Kittiwake - breeding

Chough are not discussed further as they are not a protected feature for which fisheries management measures are required as they are not a marine species.

Feature conditions:

  • Guillemot – Favourable
  • Kittiwake – Unfavourable

Conservation objectives:

  • Guillemot – Maintain
  • Kittiwake - Restore

The proposed management measures for North Colonsay and western cliffs SPA are as follows.

Option 1:

  • Set nets (including fyke nets) prohibited from February till end of August in areas down to 177m based on presence and maximum dive depth of guillemot.
  • Full site closure to hydraulic dredges

Figure 10. Map of measures proposed under option 1:

Map shows North Colonsay and Western Cliffs SPA, an area of waters immediately off the northern and northwestern coast of Colonsay. The entire site is less than 177m deep. Throughout the site set nets (including fyke nets) are prohibited February to end August, while hydraulic dredges are prohibited year-round.

Option 2:

  • Full site closure to set nets (including fyke nets) and hydraulic dredge.

Figure 11. Map of measures proposed under option 2:

Map shows North Colonsay and Western Cliffs SPA, an area of waters immediately off the northern and northwestern coast of Colonsay. The entire site is less than 177m deep. Throughout the site set nets (including fyke nets) and hydraulic dredges are prohibited year-round.

Overlapping sites included in this consultation

This SPA overlaps with the Inner Hebrides and the Minches SAC.

Estimated Socio-economic impacts of proposed measures for North Colonsay and Western Cliffs SPA

No socio-economic impacts are anticipated for this site, based on available data in relation to:

  • Average annual loss in value of landings (£000s, 2022 prices)
  • Direct + indirect reduction in GVA (PV) impact (£000s) 20 years
  • Average (mean) number of direct + indirect jobs (year on year, over 20 years), Full Time Equivalents
Table 8: Estimated Environmental impacts of proposed fisheries management measures for North Colonsay and Western Cliffs SPA

Environmental Impact

Option 1

Option 2

Benefits within the sites/areas

Moderate beneficial

Moderate beneficial

Spill over benefits

None

None

Displacement effects

None

None

Effects from other gear types

None

None

Estimated overall environmental impact

Benefit

Benefit

Contact

Email: marine_biodiversity@gov.scot

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