Marine Fish and Benthos Studies - Knik Arm Bridge and Toll Authority

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HDR Alaska, Inc. 12214-12 May 13, 2005 Page 3 Juvenile salmon numbers in beach seine hauls increased relative to April sampling with juvenile chum the most abundant. Moderate numbers of juvenile pink salmon were also observed. During the May 18-21 period, larger hatchery Chinook salmon were found, particularly on the eastern side of the Arm. Post-spawn eulachon (hooligans) were moderately abundant in beach seine hauls. In tow net samples, invertebrates and juvenile salmon dominated catch. Moderate numbers of juvenile chum and pink salmon were observed offshore at all transects. A few to moderate numbers of juvenile sockeye salmon were also observed offshore. Other species were relatively few in number but included threespine stickleback, smelt, herring, and larval flatfish.
HDR Alaska, Inc. 12214-12 May 13, 2005 Page 4 Table 1 - Fish Species Observed during Beach Seine Activities at Knik Arm Stations 5A 16 14 10 7 3 13 7A 11A Chinook salmon Juvenile X X X X Adult Coho salmon Juvenile X X X X X Adult Chum salmon Juvenile X X X X Adult Pink salmon Juvenile X X Adult Sockeye salmon Juvenile X X X Adult Threespine X X X X X X X X stickleback Ninespine X stickleback Saffron cod X X X X X X X Bering Cisco Longfin smelt X Pacific herring Clingfish X Starry flounder Eulachon X X X X X Dolly Varden char
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Marine Fish and Benthos Studies in
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CONTENTS Page EXECUTIVE SUMMARY E-1
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CONTENTS (CONT.) FIGURES (CONT.) 14
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MARINE FISH AND BENTHOS STUDIES IN
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Among the non-salmonids, threespine
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The extreme turbidity and poor visi
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MARINE FISH AND BENTHOS STUDIES IN
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2.2 Sample Methods MacKenzie facili
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will conduct a fatty acid analysis
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2.3 Laboratory Analysis (Figure 3).
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Null hypotheses were tested using t
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3.2.3 KA 3 - North Entrance to Eagl
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3.2.10 KA 11 and KA 11A - Cairn Poi
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3.2.15 PM SS and PM S1 through PM S
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plus range) seen in July of both ye
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greater number of stations sampled)
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were common throughout the summer.
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3.3.2.5 Longfin Smelt 2004. Two-hun
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3.3.2.9 Tide Stage vs. Catch Beach
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(4.0 per set) followed by pink salm
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Ten species of fish were captured i
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species of polychaete worm, Neanthe
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3.4.4 Facilities Sampling 3.4.4.1 F
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flow meter reading to standardize t
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each seines in 2005. In summer/fall
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salmonid catches in Moulton’s (19
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(Figure 8), the larger size of the
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4.4 Knik Arm Ecological Conditions
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An apparent near absence of inverte
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4.4.4 Importance of Littoral Habita
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5.0 REFERENCES Bakus, G., M. Orys,
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Simenstad, C.A., C.D. Tanner, W.M.
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Table 1 - Knik Arm 2004 and 2005 Sa
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Table 3 - Total 2004 and 2005 Month
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Table 5 - Fish CPUE in 2004; 120-Fo
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Table 7 - Fish CPUE in 2005; 120-Fo
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Table 9 - Fish CPUE in 2005 as a Fu
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Table 11 - Total Fish CPUE by Tow N
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Table 13 - Total Catch and CPUE in
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Table 15 - Total Fish Catch in 2005
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Table 17 - Statistical Analyses of
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Table 19 - Total Catch and CPUE of
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Pentec Environmental 12214-12 Novem
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6-2 Knik Arm Crossing Tow Net Locat
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Water Quality of Knik Arm, 2004 - 2
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Juvenile Salmonid CPUE over Time; 1
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Length Frequencies of Juvenile Coho
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Length Frequencies of Juvenile Chum
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CPUE for Stickleback Species; 120-F
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CPUE for Saffron Cod and Longfin Sm
Page 101 and 102: Length Frequencies of Longfin Smelt
Page 103 and 104: Juvenile Salmonid CPUE over Time in
Page 105 and 106: Non-Salmonid CPUE over Time in Tow
Page 107 and 108: Length Frequencies of Sockeye Salmo
Page 109 and 110: Length Frequencies of Chinook Salmo
Page 111 and 112: Invertebrate CPUE by Species in 200
Page 113 and 114: Relationship of Tidal Stage and Inv
Page 115 and 116: Invertebrate CPUE by Transect in 20
Page 117 and 118: Invertebrate Monthly CPUE in Port M
Page 119 and 120: Invertebrate CPUE by Station; Port
Page 121 and 122: Pentec Environmental 12214-12 Photo
Page 131 and 132: MEMORANDUM DATE: August 13, 2004 TO
Page 133 and 134: HDR Alaska, Inc. 12214-10 August 13
Page 135 and 136: HDR Alaska, Inc. 12214-10 October 6
Page 137 and 138: MEMORANDUM DATE: October 6, 2004 TO
Page 139 and 140: HDR Alaska, Inc. 12214-10 October 6
Page 141 and 142: HDR Alaska, Inc. 12214-10 November
Page 143 and 144: MEMORANDUM DATE: November 22, 2004
Page 145 and 146: HDR Alaska, Inc./Integrated Concept
Page 147 and 148: MEMORANDUM DATE: May 13, 2005 TO: F
Page 149 and 150: HDR Alaska, Inc. 12214-12 May 13, 2
Page 151: HDR Alaska, Inc. 12214-12 May 13, 2
Page 155 and 156: MEMORANDUM DATE: July 8, 2005 TO: F
Page 157 and 158: HDR Alaska, Inc. 12214-12 July 8, 2
Page 159 and 160: MEMORANDUM DATE: August 10, 2005 TO
Page 165 and 166: APPENDIX B Invertebrate Data Sheet
Page 167 and 168: APPENDIX B Invertebrate Data Sheet
Page 169 and 170: Appendix B (cont.) Table B-2: Inver
Page 171 and 172: Appendix B (cont.) Table B-5: Stati
Page 173 and 174: Table C-1: Summary of CPUE by all G
Page 175: Table C-3 Summary of Catch and Perc
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Marine Fish and Benthos Studies - Knik Arm Bridge and Toll Authority

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