Marmion Marine Park management Plan - Department of ...

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11.0 PRINCIPAL CONSERVATION DIRECTIONSCONSERVATION GOALConserve all aquatic and terrestrial plant and animal species and communities, and the naturalprocesses that sustain them, and the physical, cultural and scenic resources.OBJECTIVES1. To conserve all biological, physical, scenic and cultural resources.2. To protect the natural environment from adverse impacts resulting fromrecreational and commercial use of the Park.3. To promote conservation values in interpretation and education programs.4. To foster ongoing research and monitoring programs to aid future management.STRATEGYGiven the complexity of the marine ecosystem and the limitations of available knowledge, a cautiousapproach to management will be adopted.This plan recognises that appropriate conservation management of the Park's natural attributes will beattained by the stringent management of recreational and commercial activities in the Park. Ongoingresearch and monitoring programs will be encouraged to aid future management of the Park. Anumber of Acts of Parliament have direct bearing on the administration of the Marine Park (see 9.0Interagency Responsibilities) and, consequently, effective regulations for activities in the Park are inplace. In conjunction with this management plan, the enforcement of these regulations will providefor the conservation management of the Park's resources.Descriptions of various aspects of the natural environment in the Park area are contained in separatetechnical reports, (DCE, 1986; EPA, 1987). Summaries of available data can be found in the City ofStirling Coastal Report (City of Stirling, 1984), reports on the Wanneroo Coast (Woods, 1984a,1984b), the Environmental Review and Management Programme (ERMP) for the Sorrento BoatHarbour (PWD, 1985), which is now known as the Hillarys Boat Harbour, and in the EPA's assessmentof the Sorrento Boat Harbour ERMP (EPA, 1985).Only detail relevant to the management of the area's natural environment is provided in this plan.23
12.0 CLIMATE AND OCEANOGRAPHYThe Park area experiences hot, dry summers and mild, wet winters. Air temperatures are similar tothose in Perth, where mean daily maximum temperatures vary from 30.3•C in summer to 17.6•C inwinter. Mean daily minimum temperatures are 18.6•C in summer and 9.1•C in winter. Rainfall ismoderate (about 880 mm/year) and falls mainly in May through to October. Evaporation in theregion is high (about 1980 mm/year).WindsThe dominant climatic factor is the wind, which generates waves, induces water circulation andtransports sand inland. The wind regime in the area is similar to that at Fremantle (Steedman & Craig,1979, 1983). A diurnal wind variation persists throughout the year, but intensifies during thesummer. In winter, winds are predominantly 'offshore' at night and in the morning, and 'onshore' inthe afternoon. In summer, the sea breeze/land breeze pattern is stronger, and acts additionally to apersistent southerly airstream, so that the resultant wind blows from the southeast at night and in themorning and from the southwest in the afternoon. The passage of low pressure systems in winterbrings northwest winds and gales that back to the west and southwest. The strongest winds blow fromthe southwest.Dissipating tropical cyclones can affect the coast during summer, bringing wind gusts up to 70 knots(35 m/s). Though these cyclonic events are of short duration, associated winds and high energy wavescan have a marked effect on the coast.WavesThe Park area is subject to a prevailing, refracted, long period (8-12 sec) southwest-west swell that iscontinually generated by storms and the "Roaring Forties" in the Indian Ocean. The swell is furtherrefracted, reflected and diffracted as it passes through the reef chains.Superimposed on the swell are locally generated, short-period (4-6 sec) wind waves. During summer,southwest waves are generated by the reinforced sea breeze; during winter, high energy waves aregenerated during northwest and westerly gales. The occasional summer cyclone may also generatewaves from the north, west or south.Depending on the prominence of the adjacent islands and reefs, wave energy reaching the coast mayvary markedly from place to place, with different parts of the coast being subject to swell, waves, swelland waves, or waves with damped swell. The prominent reefs off Mullaloo Point have had a markedinfluence on the swell, with the result that the area behind the reef complex has been the site of majoraccumulation of Holocene sands (see 13.0 Geology and Geomorphology).24
Page 2 and 3: MARMION MARINE PARKMANAGEMENT PLAN1
Page 4 and 5: ACKNOWLEDGEMENTSThis management pla
Page 6 and 7: 20.0 COMMERCIAL FISHING____________
Page 8 and 9: INDEX TO ACTIONSReferences are show
Page 10 and 11: INTRODUCTION1. Overview2. Values3.
Page 12 and 13: ecreational uses new to the Park wi
Page 14 and 15: Map 1. Location of Marmion Marine P
Page 16 and 17: • Traditional use of beaches and
Page 19 and 20: PRINCIPAL MANAGEMENT DIRECTIONS6. P
Page 21 and 22: 7.0 POLICIES AND GOALSNPNCA AND CAL
Page 23 and 24: Restrictions on certain activities,
Page 25 and 26: Map 2. Zoning Plan for the Marmion
Page 27 and 28: Many submissions to the draft manag
Page 29 and 30: (vi)The Commonwealth Historic Shipw
Page 31: CONSERVATION11. Principal Conservat
Page 35 and 36: pipes and dense hard capstone layer
Page 37 and 38: Actions1. Maintain liaison between
Page 39 and 40: This habitat occurs in the less she
Page 41 and 42: TABLE 2.Fin Fish Species Commonly C
Page 43 and 44: Little is known about past or prese
Page 45 and 46: 18.0 PRINCIPAL RECREATION AND COMME
Page 47 and 48: Recreational fishing is controlled
Page 49 and 50: 19.3 DIVING AND SNORKELLINGThe shel
Page 51 and 52: 2. Restrict use of motorised and no
Page 53 and 54: 20.0 COMMERCIAL FISHINGCommercial f
Page 55 and 56: 2. Four wheel drive access for beac
Page 57 and 58: 22.0 AIRCRAFTBoth military and civi
Page 59 and 60: ActionDesign, location and installa
Page 61 and 62: Proposed sites, development and con
Page 63 and 64: INFORMATION, INTERPRETATION ANDEDUC
Page 65 and 66: 4. Ensure commercial operators main
Page 67 and 68: 26.0 RESEARCH AND MONITORINGRESEARC
Page 69 and 70: 27.0 SAFETY, SEARCH AND RESCUEA num
Page 71 and 72: 30.0 FUNDINGThis management plan wi
Page 73 and 74: BIBLIOGRAPHYAllen, A.D. (1981). Gro
Page 75 and 76: Woods, P.J. (1984a). Local coastal
Page 77 and 78: APPENDIX 2Western AustralianFISHERI
Page 79 and 80: APPENDIX 3(a)WILDLIFE CONSERVATION

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