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Revised Coastal Management Plan 2017-2022

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Revised Coastal Management Plan 2017-2022 Coastal Management Plans (2017-2022) Semaphore, Largs Bay, Taperoo, Osborne and North Haven Dunes 1 City of Port Adelaide Enfield Coastal Management Plans (2017-2022) City of Port Adelaide Enfield 26 September 2017 Version 3 Prepared by EBS Ecology for the City of Port Adelaide Enfield Document Control Revision Date Date issued Authors Reviewed by Revision type No. Reviewed 1 24/08/2017 A. Derry G. Glazier 24/08/2017 Draft1 2 13/09/2017 A. Derry G. Glazier 12/09/2017 Draft2 3 26/09/2017 A. Derry - - Final Distribution of Copies Revision Date issued Media Issued to No. 1 24/08/2017 Electronic Andy Walker, City of Port Adelaide Enfield 2 13/09/2017 Electronic Andy Walker, City of Port Adelaide Enfield 3 26/09/2017 Electronic Andy Walker, City of Port Adelaide Enfield COPYRIGHT: Use or copying of this document in whole or in part (including photographs) without the written permission of EBS Ecology constitutes an infringement of copyright. LIMITATION: This report has been prepared on behalf of and for the exclusive use of EBS Ecology’s Client, and is subject to and issued in connection with the provisions of the agreement between EBS Ecology and its Client. EBS Ecology accepts no liability or responsibility whatsoever for or in respect of any use of or reliance upon this report by any third party. CITATION: EBS (2017) Coastal Management Plans (2017-2022). Report to City of Port Adelaide Enfield. EBS Ecology, Adelaide. Coastal Management Plan (2017-2022) – City of Port Adelaide Enfield Table of Contents 1 INTRODUCTION ................................................................................................... 1 1.1 Objectives .............................................................................................................................. 3 2 BACKGROUND INFORMATION .......................................................................... 4 2.1 Pre-European Settlement ...................................................................................................... 4 2.2 Post European Settlement ..................................................................................................... 4 2.3 Survey Limitations ................................................................................................................. 4 3 SITE DETAILS AND DESCRIPTION .................................................................... 5 3.1 Physical description ............................................................................................................... 5 3.1.1 Topography ............................................................................................................... 5 3.1.2 Soils .......................................................................................................................... 5 3.1.3 Climate ...................................................................................................................... 5 3.2 Vegetation .............................................................................................................................. 6 3.2.1 Flora species............................................................................................................. 7 3.2.2 Significant flora ....................................................................................................... 10 3.2.3 Condition ................................................................................................................. 10 3.3 Previous revegetation .......................................................................................................... 10 3.4 Bushland condition monitoring ............................................................................................ 11 3.5 Signs .................................................................................................................................... 12 3.6 Fauna ................................................................................................................................... 12 3.6.1 Native fauna ............................................................................................................ 12 3.6.2 Introduced Fauna .................................................................................................... 14 4 VALUES .............................................................................................................. 15 4.1 Educational Value ................................................................................................................ 15 4.2 Aesthetic Value .................................................................................................................... 15 4.3 Recreation Value ................................................................................................................. 15 4.4 Community Engagement ..................................................................................................... 15 4.5 Biodiversity Value ................................................................................................................ 15 5 MANAGEMENT ISSUES .................................................................................... 16 5.1 Weeds .................................................................................................................................. 16 5.2 Erosion ................................................................................................................................. 26 5.2.1 Cooroyba Court....................................................................................................... 26 5.2.2 Gulf Point Drive ....................................................................................................... 27 5.2.3 Beach access paths ................................................................................................ 28 5.2.4 Erosion areas in Semaphore South ........................................................................ 30 5.3 Public safety ........................................................................................................................ 32 ii Coastal Management Plan (2017-2022) – City of Port Adelaide Enfield 5.4 Stormwater drainage ........................................................................................................... 32 5.5 Introduced fauna .................................................................................................................. 34 5.6 Disability access .................................................................................................................. 34 5.7 Seaweed .............................................................................................................................. 34 6 ACTION PLAN .................................................................................................... 35 6.1 Weed Control ....................................................................................................................... 35 6.2 Revegetation ........................................................................................................................ 37 6.3 Erosion Mitigation ................................................................................................................ 39 6.3.1 Cooroyba Court....................................................................................................... 39 6.3.2 Gulf Point Drive ....................................................................................................... 39 6.3.3 Beach access paths ................................................................................................ 39 6.3.4 Erosion areas in Semaphore South ........................................................................ 40 6.4 Public safety mitigation ........................................................................................................ 41 6.5 Stormwater discharge mitigation ......................................................................................... 41 6.6 Seaweed .............................................................................................................................. 41 7 BIBLIOGRAPHY ................................................................................................. 51 8 APPENDICES ..................................................................................................... 52 Appendix 1. Weed control methodology. ............................................................................................... 52 Appendix 2. Vegetation associations across the five management areas. ........................................... 55 Appendix 3. Locations of tracks within the LeFevre Peninsula Dune System. ..................................... 60 iii Coastal Management Plan (2017-2022) – City of Port Adelaide Enfield List of Tables Table 1. Vegetation species identified within the LeFevre Peninsula Coastal Dune System. ................ 7 Table 2. Numbers of plants planted per year. ....................................................................................... 10 Table 3. Bird species recorded within the LeFevre Peninsula Coastal Dune System. ......................... 13 Table 4. Native reptiles and mammals likely to be present within the LeFevre Peninsula Coastal Dune System. ......................................................................................................................... 13 Table 5. Weed threat category. ............................................................................................................
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