Fremantle Port Inner Harbour and Channel ... - Fremantle Ports

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Figure 1.1Figure 1.2Figure 1.3Figure 1.4Figure 2.1Figure 2.2Figure 3.1Figure 3.2Figure 3.3Figure 3.4Figure 3.5Figure 3.6Figure 3.7List of FiguresGage Roads Offshore Disposal Area and Fremantle Port Authority mooringareas ........................................................................................................................ 2Gage Roads habitat map in 2009, prior to disposal ................................................. 3Bathymetry for Gage Roads Offshore Disposal Area prior to sedimentdisposal from the Inner Harbour Deepening Project ................................................ 5Benthic habitat within Gage Roads 2011 ................................................................. 7Towed video ground truthing transects .................................................................. 10Permanent seagrass and sediment survey sites, Gage Roads ............................. 12Gage Roads Offshore Disposal Area and surrounds post disposal benthichabitat map 2011 ................................................................................................... 20Benthic habitat post disposal within Gage Roads, December 2011 ...................... 21Changes in benthic habitat within Gage Roads between December 2009 andDecember 2011 ..................................................................................................... 22Baseline mean seagrass shoot counts .................................................................. 23Percentage cover by benthic categories ................................................................ 24Particle size distributions ....................................................................................... 26Differences in bathymetry from pre- to post-disposal (November 2009 toDecember 2010) within and surrounding the Offshore Disposal Area ................... 28Figure 3.8 Depths of disposal area after deposition of dredged material inDecember 2010 ..................................................................................................... 29Figure 3.9 Differences in bathymetry from post disposal December 2010 toDecember 2011 ..................................................................................................... 30Figure 3.10Depths of Offshore Disposal area after deposition of dredged materials inDecember 2011 ..................................................................................................... 31List of TablesTable 1.1Table 2.1Table 2.2Table 2.3Table 3.1Table 3.2Table 3.3Table 3.4Table 3.5Table 3.6Table 3.7Seagrass shoot count data from monitoring sites established for the InnerHarbour and Channel Deepening Project ................................................................ 8Seagrass sites, zone designation and distance to Offshore Disposal Areaboundary ................................................................................................................ 13Substrate categories used for estimates of seagrass percentage cover ............... 14Limits of Reporting (LOR) and Interim sediment quality guidelines (ISQG) fornutrients and metals .............................................................................................. 15Seagrass habitat loss with the Offshore Disposal Area, Zone of Potentialloss and Potential Effect ........................................................................................ 19PERMANOVA table of results for P.angustifolia shoot counts .............................. 24Pairwise post hoc tests for P.angustifolia shoot counts ......................................... 24PERMANOVA table of results for P.angustifolia percentage cover ....................... 25Pairwise post hoc tests for P.angustifolia percentage cover ................................. 25Correlation between whole sediment nutrients and metals vs P. angustifoliavariables or percentage cover ............................................................................... 26Data ranges and detection limits of sediment chemical parameters ..................... 27List of AppendicesAppendix A Geo Oceans ReportAppendix B GeoImage ReportAppendix C Seagrass Monitoring Site DiagramsAppendix D Chain of Custody FormsAppendix E Seagrass Shoot Count Data SheetsAppendix F Percentage CoverAppendix G Sediment Field LogAppendix H Particle Size DistributionsAppendix I Nutrient and Metals DataAppendix J Pore-water Nutrients, Whole Sediment Nutrient and Metals GraphsiiOceanica: Fremantle Ports: FP – Gage Roads Offshore Disposal Area Seagrass Recovery Project, Phase I – Initial Survey
AcronymsASdfEDMGISGPShaICP-AESIHDISQGkmLORMAFRLMDDmgMSnNH 3NO 3PO 43QA/QCseSSTKNTPTOCTCAustralian StandardDegrees of freedomEnvironmental Data ManagementGeographic information systemGlobal positioning systemHectareInductively coupled plasma atomic emission spectroscopyInner Harbour Deepening programInterim Sediment Quality GuidelinesKilometreLimit of reportingMarine and Freshwater Research LaboratoryMinimal detectable differenceMilligramMeans of squaresSample sizeAmmoniaNitratePhosphateQuality assurance/ quality controlStandard errorSum of squaresTotal Kjeldahl nitrogenTotal phosphorusTotal organic carbonTotal carbonOceanica: Fremantle Ports: FP – Gage Roads Offshore Disposal Area Seagrass Recovery Project, Phase I – Initial Surveyiii
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Fremantle Port Inner Harbour and Ch
Page 5 and 6:
Client: Fremantle PortsDocument his
Page 7 and 8: ContentsExecutive Summary .........
Page 9 and 10: Executive SummaryProject StatusFrem
Page 11 and 12: 1. Introduction1.1 Background and p
Page 13 and 14: Figure 1.1Dredge areas, reclaimed a
Page 15 and 16: Table 2.2 Audit tableAuditCode801:M
Page 17 and 18: AuditCodeSubject Action How Evidenc
Page 19 and 20: 3. Annual Survey Footprint of Offsh
Page 21 and 22: Figure 3.2 Differences in bathymetr
Page 23: A one in five year storm event (as
Page 26 and 27: 5. SummaryThere were zero non-compl
Page 29: 6. ReferencesDEC (2009) Guidelines
Page 33 and 34: STATUS OF THIS DOCUMENTThis documen
Page 35 and 36: Report shall be 15 months from the
Page 37 and 38: 6-3 If the Water Quality Monitoring
Page 39: Table 2: Summary of key proposal ch
Page 47: Fremantle Ports1 Cliff StreetFREMAN
Page 51: Fremantle Ports - Gage RoadsOffshor
Page 55: Client: Fremantle PortsRevisions hi
Page 61 and 62: Executive SummaryOceanica Consultin
Page 63 and 64: 1. Introduction1.1 BackgroundThe Ga
Page 65 and 66: Figure 1.2Gage Roads habitat map in
Page 67 and 68: Figure 1.3Bathymetry for Gage Roads
Page 69 and 70: Figure 1.4 Benthic habitat within G
Page 71 and 72: 2. Methods2.1 Benthic habitat surve
Page 73 and 74: 2.2 Seagrass recovery2.2.1 Permanen
Page 75 and 76: Table 2.1Seagrass sites, zone desig
Page 77 and 78: Table 2.3Limits of Reporting (LOR)
Page 79 and 80: Sediment nutrients and metalsNutrie
Page 81 and 82: 3. Results3.1 Benthic habitat mapA
Page 83 and 84: Figure 3.2 Benthic habitat post dis
Page 85 and 86: 3.2 Seagrass recovery3.2.1 Seagrass
Page 87 and 88: Table 3.4PERMANOVA table of results
Page 89 and 90: Table 3.7Data ranges and detection
Page 91 and 92: The bathymetry data for December 20
Page 93 and 94: Bathymetry data from December 2011
Page 95 and 96: 4. DiscussionWithin the Offshore Di
Page 97 and 98: 6. AcknowledgementsThis report was
Page 99: Appendix AGeo Oceans Report
Page 102 and 103: Benthic Habitat AssessmentTowed Vid
Page 104 and 105: 1. IntroductionGeo Oceans was commi
Page 106 and 107: Table 2 Tide predictions for the Po
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Figure 1 Substrate and biota habita
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Figure 2 Depth data collected durin
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Appendix 1: Video analysis biologic
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Appendix BGeoImage Report
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Table of ContentsIntroduction......
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Figure 1: Study site overview for s
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Project 1Project 1 aimed to generat
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Figure 2: Tier 1 classification res
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Limitations and assumptionsA number
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Appendix CSeagrass Monitoring Site
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Appendix ESeagrass Shoot Count Data
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Appendix GSediment Field Log
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Appendix INutrient and Metals Data
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MarineandFreshwaterResearchLaborato
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