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Development of a Marine Sensitivity Mapping Database and GIS Integration The Marine Life Information Network® for Britain and Ireland (MarLIN) Development of a marine sensitivity mapping database and GIS integration. Stage 1. Review of current habitat and species information Contract no. FC 73-02-245 Report to Cyngor Cefn Gwlad Cymru / Countryside Council for Wales Harvey Tyler-Walters Olwen Ager Keith Hiscock December 2002 Reference: Tyler-Walters, H., Ager, O.E.D. & Hiscock, K., 2002. Development of a marine sensitivity mapping database and GIS integration. Stage 1. Review of current habitat and species information. Report to Cyngor Cefn Gwlad Cymru / Countryside Council for Wales from the Marine Life Information Network (MarLIN). Plymouth: Marine Biological Association of the UK. [Contract no. FC 73-02-245] Sensitivity mapping: review of current habitat and species information MarLIN 2 Sensitivity mapping: review of current habitat and species information MarLIN Development of a marine sensitivity mapping database and GIS integration. Stage 1. Review of current habitat and species information. Contents 1. AIMS AND BACKGROUND TO CONTRACT........................................................................................................9 2. TIMETABLE.....................................................................................................................................................9 3. METHODOLOGY..............................................................................................................................................9 4. RESULTS .......................................................................................................................................................10 4.1. Introduction ...........................................................................................................................................10 4.2. Existing gaps in knowledge concerning sensitivity and recoverability of key marine species and biotopes ........................................................................................................................................................10 4.2.1 Current MarLIN species Key Information reviews .........................................................................10 4.2.2 Existing gaps concerning sensitivity and recoverability of key marine species..............................15 4.2.3 Current MarLIN biotope Key Information reviews.........................................................................20 4.2.4 Existing gaps concerning sensitivity and recoverability of key marine biotopes............................23 4.2.5 Existing gaps concerning sensitivity and recoverability information..............................................23 4.3. The extent to which spatial and temporal factors have been taken into account in existing sensitivity and recoverability assessments.....................................................................................................................25 4.3.1 Spatial factors..................................................................................................................................25 4.3.2 Temporal factors..............................................................................................................................25 4.3.3 Relevance of MarLIN ‘Environmental factors’ and ‘Key information fields’ to assessing spatial and temporal change.................................................................................................................................26 4.4. Environmental factors used for sensitivity assessment by SensMap, MarLIN and the UK Marine SACs project...........................................................................................................................................................27 4.4.1 Environmental factors .....................................................................................................................27 4.4.2 Maritime activities and their associated environmental factors ......................................................27 4.5. Extending species and biotope sensitivity assessments to the biotope complex, habitat complex and ‘lifeform’ levels............................................................................................................................................30 4.5.1 Introduction .....................................................................................................................................30 4.5.2 Combining sensitivity (=intolerance) and recoverability ................................................................31 4.5.3 Assessing sensitivities at the biotope complex, ‘lifeform’ and habitat complex levels ..................32 5. CONCLUSIONS...............................................................................................................................................33 6. ACKNOWLEDGEMENTS.................................................................................................................................34 7. REFERENCES.................................................................................................................................................34 8. APPENDICES ……………………………………………………………………………………………….37 3 Sensitivity mapping: review of current habitat and species information MarLIN Development of a marine sensitivity mapping database and GIS integration. Stage 1. Review of current habitat and species information. Contract specification A thorough but concise review of current sensitivity data is needed, to identify remaining gaps in knowledge, especially in relation to key species and habitats. A review of any temporal and spatial influence of factors on species and biotope sensitivity will be required and, in addition, a methodology for translating the sensitivity of species and biotopes to more aggregated levels, including biotope complex, ‘lifeform’ and habitat complex will be required. The objectives of the contract are: i) review existing gaps in knowledge concerning sensitivity and recoverability of key marine species and habitats, including BAP habitats and species and nationally rare and scarce species or habitats; ii) review the extent to which spatial and temporal factors have been taken into account in existing sensitivity and recoverability assessments and where absent how best to incorporate them; iii) identify common environmental factors used for sensitivity assessment by SensMap, MarLIN and the UK Marine SACs project and highlight different factors where present, and iv) develop a draft protocol for extending species and biotope sensitivity assessments to the biotope complex, habitat complex and ‘lifeform’ levels, taking into account the SensMap approach. List of Figures Figure 1. The number of researched biotope Key Information reviews within Annex I habitats.................. 22 List of Tables Table 1. Key Information reviews completed by MarLIN. Priority 1 species, designated or listed under statute or convention. ...................................................................................................................... 12 Table 2. UK Biodiversity Action Plan Species of Conservation Concern present in Welsh waters............. 14 Table 3. Keystone, characterizing and representative species for which MarLIN full Key Information reviews have been prepared. ........................................................................................................... 15 Table 4. Keystone and important characterizing species not yet researched by MarLIN and known to be present in Welsh waters................................................................................................................... 19 Table 5. The number of MarLIN researched biotope Key Information reviews and represented biotopes within BAP habitat and species reviews. ........................................................................................ 21 Table 6. Biotopes considered in the UK Marine SACs habitat reviews that have been researched or represented by MarLIN. .................................................................................................................. 22 Table 7. Comparison between environmental factors used to assess sensitivity by MarLIN, SensMap, and the UK Marine SACs project. ......................................................................................................... 29 Table 8. Combining ‘intolerance’ and ‘recoverability’ to identify ‘sensitivity’............................................ 31 4 Sensitivity mapping: review of current habitat and species information MarLIN List of Appendices Appendix 1. Biology and Sensitivity Key Information reviews – priority and terminology……………...37 Appendix 2. Key Information reviews and basic information completed by MarLIN…………………….43 Appendix 3. Species selected as indicative of the sensitivity of the biotopes researched by MarLIN…….65 Appendix 4. Complete list of MarLIN researched and represented biotopes at November 2002……….....79 Appendix 5. The marine natural heritage importance of the MarLIN researched biotopes……………..…91 Appendix 6. The number of MarLIN researched biotope Key Information reviews and represented biotopes within BAP habitat and species reviews…………………..……………………...103 Appendix 7a. Nationally rare and scarce biotopes in the MarLIN database..………………..…………….107 Appendix 7b. Nationally scarce biotope complexes in the MarLIN database..…………………...…....….111 Appendix 7c. Nationally rare biotopes in the MarLIN database ...…………………………..………….…113 Appendix 8. Biotopes considered
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