american samoa - University of Hawaii at Manoa Botany Department

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Chapter FiveVATIA WETLANDLOCATIONVatia Village is located along the north coast of the Island of Tutuila. One of two wetlands inVatia was examined for this investigation. This wetland is situated on the southeast side ofVatia Village (Figure 5-1).WETLAND HYDROLOGYSources of Surface Runoff to the Southeast WetlandThe primary source of water in the wetland is surface runoff from Faatafe Stream, Tufu Stream,and Mulivai Stream (Figure 5-2). These streams drain a portion of the northern slopes ofMaugaloa Ridge. This drainage area extends downslope between Tiatauala Ridge andMatavalu Ridge.Faatafe Stream originates near the 1,000-foot contour where it receives surface runoff from theeast side of Maugaloa Ridge. The stream course flows downslope through the west side of thewetland, meanders through a small residential area, and eventually discharges along the southside of Vatia Bay.American Samoa Wetland/Stream Restoration and Enhancement PlanFebruary 2001, Vatia Wetland, Page 5-1
Figure 5-1Location MapSoutheast Wetland in VatiaAmerican Samoa Wetland/Stream Restoration and Enhancement PlanFebruary 2001, Vatia Wetland, Page 5-2
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Asili StreamAMERICAN SAMOAWETLAND/S
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American SamoaWetland/Stream Restor
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American Samoa Wetland/Stream Resto
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Figure 1-1Location of Potential Wet
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Onsite InvestigationsNovember 1999G
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Where appropriate, stream cross sec
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Chapter TwoTULA WETLANDLOCATIONTula
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Figure 2-2Tula WetlandExisting Cond
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Improved channelization of stormwat
Page 23 and 24: LAND USES IN THE VICINITY OF TULA W
Page 25 and 26: Figure 2-3Option 2: Detention of St
Page 27 and 28: Figure 2-4Option 3: Expansion of Ta
Page 29 and 30: Comparative Benefits and ImpactsPPC
Page 31 and 32: TABLE 2-4PRELIMINARY COST ESTIMATEP
Page 33 and 34: TABLE 2-5LONG-TERM RESOURCE MONITOR
Page 35 and 36: TABLE 2-6 (CONTINUED)FIELD MONITORI
Page 37 and 38: Chapter ThreeALAO WETLANDLOCATIONAl
Page 39 and 40: Figure 3-2Taufusi MarchExisting Con
Page 41 and 42: Figure 3-3FEMA 100-Year Flood Plain
Page 43 and 44: East Portion of the MarshThe impact
Page 45 and 46: WETLAND RESTORATION AND ENHANCEMENT
Page 47 and 48: The availability of new, blight-res
Page 49 and 50: Long-Term Monitoring and Site Maint
Page 51 and 52: TABLE 3-7FIELD MONITORING WORKSHEET
Page 53 and 54: Recommended monitoring stations or
Page 55 and 56: Figure 4-1Location MapAoa Village W
Page 57 and 58: No stream flow estimates are availa
Page 59 and 60: Fresh-Water SwampThe fresh-water sw
Page 61 and 62: ecome dominant if there is a nearby
Page 63 and 64: Relative Abundance and Diversity of
Page 65 and 66: Option 4: Restore Mangrove Forest U
Page 67 and 68: TABLE 4-5COMPARATIVE EVALUATIONWETL
Page 69 and 70: Long-term resource management activ
Page 73: • begin at the Tapua Stream mouth
Page 77 and 78: Tufu Stream and two stream branches
Page 79 and 80: Mr. Whistler was part of a three-pe
Page 81 and 82: InvertebratesCrustacean densities w
Page 83 and 84: FIGURE 5-3OPTION 1: RESTORE RIPARIA
Page 85 and 86: TABLE 5-4COMPARATIVE EVALUATIONWETL
Page 87 and 88: Long term monitoring of the Vatia w
Page 91 and 92: More specific monitoring of stream
Page 93 and 94: Figure 6-1Location MapVaipito Strea
Page 95 and 96: Stream FlowsHistorical Stream Flows
Page 97 and 98: California grass (Brachiaria mutica
Page 99 and 100: FIGURE 6-3FISH AND INVERTEBRATE SUR
Page 101 and 102: Most of lower Vaipito Stream segmen
Page 103 and 104: Red mangrove should be planted with
Page 105 and 106: TABLE 6-7PRELIMINARY COST ESTIMATEC
Page 107 and 108: TABLE 6-9LONG-TERM RESOURCE MONITOR
Page 109 and 110: TABLE 6-10 (Continued)FIELD MONITOR
Page 111 and 112: Vehicular and pedestrian access to
Page 113 and 114: Figure 7-1Location MapLeele-Papa-Ta
Page 115 and 116: Stream flow, in some cases, is cons
Page 117 and 118: Stormwater Discharges and Related F
Page 119 and 120: AQUATIC FISH AND INVERTEBRATESGener
Page 121 and 122: Opportunities and StrategiesOption
Page 123 and 124: Figure 7-3Option 2: Reduction of Er
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TABLE 7-8PRELIMINARY COST ESTIMATEP
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TABLE 7-9LONG-TERM RESOURCE MONITOR
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TABLE 7-10 (Continued)FIELD MONITOR
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More specific monitoring of stream
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Figure 8-1Location MapSauino Stream
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Stream FlowsHistorical Stream Flows
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AQUATIC FISH AND INVERTEBRATESGener
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Figure 8-3Option 1: Construction of
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FIGURE 8-5OPTION 2: PLANT NATIVE RI
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Long-Term Monitoring and Site Maint
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TABLE 8-8FIELD MONITORING WORKSHEET
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TABLE 8-8 (Continued)FIELD MONITORI
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LOCATIONChapter NineLEAFU STREAMLea
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Figure 9-2Leone Pala and 300-Foot L
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However, during and following heavi
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Vegetation TrendsThe lower Leafu St
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LAND USES ADJACENT TOLOWER LEAFU ST
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Option 2: Construct Basaltic Wall,
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Figure 9-5:Stabilize East Stream Ba
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TABLE 9-7PRELIMINARY COST ESTIMATEP
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TABLE 9-8LONG-TERM RESOURCE MONITOR
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TABLE 9-9 (Continued)FIELD MONITORI
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Chapter TenASILI STREAMLOCATIONAsil
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Figure 10-2Asili Stream SegmentExis
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Stormwater Discharges and Related F
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Further downstream, the stream chan
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TABLE 10-4SUMMARY OF MACROFAUNAL OR
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American Samoa Wetlands/Streams Res
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CLEAN-UP OF LOWER ASILI STREAMLABOR
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TABLE 10-9LONG-TERM RESOURCE MONITO
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TABLE 10-10 (Continued)FIELD MONITO
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Vehicular and pedestrian access to
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Figure 11-1Location MapFusi Wetland
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WETLAND VEGETATIONNovember 1999 Sur
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The lack of stream flow entering th
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Figure 11-3Option 1: Remove Solid W
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Recommended Option and Estimated Pr
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TABLE 11-6FIELD MONITORING WORKSHEE
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Any future monitoring stations or s
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Project ManagerRepresentatives of a
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REFERENCESBiosystems Analysis, Inc.
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APPENDIX ASUMMARY OFPLANTSOBSERVED
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Species Family EnglishNameSamoanNam
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APPENDIX CSUMMARY OFAQUATIC MACROFA
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