appendix b final 2008 biological surveys of los angeles and long ...

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2.0 Water Quality outfall, although similar profiles were not evident at Station LA1 that is considerably closer to the outfall terminus. An example of the salinity profile, showing lower salinity in the surface layer, for the Long Beach Outer Harbor area is provided in Figure 2.4-1. Receiving water quality data for the outfall show a similar seasonal reduced surface salinity trend for the outer harbor area, with the greatest decreases in surface salinity occurring in August (CLAEMD 2008). As mentioned in Section 2.3.6, some depth-related patterns in transmissivity were observed that probably were related to higher plankton densities in surface waters and resuspended sediments in bottom waters. Water quality data from 2008 sampling was not sufficient to test for correlations between water quality and relative eelgrass distribution, even though the highest transmissivity was recorded at the seaplane lagoon/Pier 300 location (see Section 2.3.6). Thus, it appears that water clarity has not prevented a healthy eelgrass community from establishing (see Section 8.4). Depth-related patterns in pH were negligible. As mentioned in Section 2.3.5, DO concentrations below 5 mg/L occurred in bottom waters at three sites (LB1, LB3, and LA8). Station LB1 is in an open area of the outer harbor with a water depth of 17 m, whereas LA8 is a shallow-water site (4 m) in an inner portion of the harbor, and LB3 is in the inner portion of the harbor with a water depth of 15 m. An example of the DO profile for a deepwater basin site is shown in Figure 2.4-2. DO concentrations did not exhibit significant spatial patterns within the study area, although it is notable that near-bottom DO concentrations less than 5 mg/L occurred in the outer harbor only, whereas low DO concentrations normally would be expected in areas with relatively poor circulation (i.e., slip areas of the inner harbor). The lowest near-bottom DO concentration at an inner harbor area was 5.37 mg/L at station LA14o (outside Consolidated Slip). The ranges in values, and the spatial and depth-related patterns, for the individual water quality parameters measured during the July 2008 survey are considered representative of summer conditions within the port complex. Water quality conditions during other seasons are expected to deviate from summer conditions due to the seasonal changes in water masses in adjacent offshore areas, magnitude and dispersion of freshwater inputs, and mixing processes. 2.5 HISTORICAL COMPARISONS Water quality characteristics measured during the July 2008 survey generally were comparable to conditions during the August 2000 biological baseline survey (MEC 2002). While the pH and DO values during July 2008 were slightly higher (approximately 1.5 – 2.0 mg/L and 0.5 pH units) than those during the August 2000 survey, the differences were minor and probably due to normal variability in water quality conditions. As recently as the late 1960s, DO levels at some locations in Los Angeles Harbor were so low that little or no marine life could survive. Since that time, regulations have reduced direct waste discharges into the harbor, resulting in improved DO levels throughout the harbor (MEC and Associates 2002). 2008 Biological Surveys of Los Angeles and Long Beach Harbors 2–5 April 2010
2.0 Water Quality Table 2.2-1. Water Quality Sampling Locations (Latitude and Longitude) and Depth (m) for the July 2008 Biological Baseline Survey Station Latitude (N) Longitude (W) Depth (m) LA1 33° 43.045’ 118° 14.431’ 23 LA2 33° 42.440’ 118° 16.231’ 5 LA3 33° 42.484’ 118° 16.435’ 6 LA4 33° 44.279’ 118° 16.600’ 17 LA5 33° 45.883’ 118° 16.483’ 17 LA6 33° 45.554’ 118° 15.647’ 13 LA7 33° 44.446’ 118° 14.783’ 5 LA8 33° 44.884’ 118° 15.053’ 4 LA9 33° 43.892’ 118° 15.157’ 17 LA10 33° 43.719’ 118° 15.909’ 24 LA11 33° 43.051’ 118° 16.160’ 16 LA12 33° 43.261’ 118° 16.738’ 12 LA13 33° 45.300’ 118° 16.931’ 12 LA14i* 33° 46.499’ 118° 14.729’ 7 LA14o* 33° 46.170’ 118° 15.054’ 13 LA15 33° 45.285’ 118° 16.496’ 17 LB1 33° 43.924’ 118° 13.353’ 17 LB2 33° 44.122’ 118° 14.352’ 8 LB3 33° 44.635’ 118° 13.924’ 15 LB4 33° 46.455’ 118° 12.862’ 8 LB5 33° 44.604’ 118° 11.813’ 17 LB6 33° 44.242’ 118° 11.305’ 16 LB7 33° 44.950’ 118° 13.015’ 24 LB8 33° 44.332’ 118° 11.028’ 15 LB9 33° 43.703’ 118° 11.530’ 24 LB10 33° 44.822’ 118° 12.640’ 20 LB11 33° 44.750’ 118° 13.386’ 14 LB12 33° 45.342’ 118° 12.683’ 15 LB13 33° 46.178’ 118° 13.385’ 20 LB14 33° 46.040’ 118° 13.954’ 17 * - i=inner; o=outer 2–6 2008 Biological Surveys of Los Angeles and Long Beach Harbors April 2010
Page 1 and 2: APPENDIX B FINAL 2008 BIOLOGICAL SU
Page 4: FINAL 2008 BIOLOGICAL SURVEYS OF LO
Page 7 and 8: Table of Contents 3.4.3 Summary of
Page 9 and 10: Table of Contents 8.2.1 Aerial Phot
Page 11 and 12: Table of Contents Table 3.4-2. Tabl
Page 13 and 14: Table of Contents Table 8.3-3. Tabl
Page 15 and 16: Table of Contents Figure 6.2-1. Rip
Page 17 and 18: Table of Contents This page intenti
Page 19 and 20: Executive Summary otter trawls to s
Page 21 and 22: Executive Summary Van Veen) and ana
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Page 26 and 27: 1.0 Introduction 1.0 INTRODUCTION T
Page 28 and 29: 1.0 Introduction 1.4 STUDY OBJECTIV
Page 30 and 31: 1.0 Introduction Historical compari
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Page 34: CHAPTER 2 WATER QUALITY
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3.0 Adult and Juvenile Fishes Figur
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CHAPTER 4 ICHTHYOPLANKTON
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4.0 Ichthyoplankton studies (Horn a
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4.0 Ichthyoplankton more likely to
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4.0 Ichthyoplankton The results of
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4.0 Ichthyoplankton Table 4.3-1. To
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4.0 Ichthyoplankton Table 4.3-2. To
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4.0 Ichthyoplankton Table 4.3-4. We
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4.0 Ichthyoplankton Table 4.3-5. We
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4.0 Ichthyoplankton Table 4.3-6. Se
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4.0 Ichthyoplankton Table 4.5-1. Ar
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4.0 Ichthyoplankton LA05 LA14 2D St
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5.0 Benthic and Epibenthic Inverteb
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CHAPTER 6 RIPRAP BIOTA
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6.0 Riprap Biota diver collection m
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6.0 Riprap Biota relatively small b
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6.0 Riprap Biota sea cucumber (Para
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6.0 Riprap Biota polychaete worms.
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6.0 Riprap Biota Table 6.3-1. Mean
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6.0 Riprap Biota Figure 6.2-1. Ripr
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7.0 Kelp and Macroalgae 7.0 KELP AN
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7.0 Kelp and Macroalgae the laborat
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7.0 Kelp and Macroalgae sediment us
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7.0 Kelp and Macroalgae Overall, ou
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7.0 Kelp and Macroalgae pose a sign
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7.0 Kelp and Macroalgae Figure 7.2-
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CHAPTER 8 EELGRASS
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8.0 Eelgrass distribution of eelgra
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8.0 Eelgrass adjacent to most trans
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8.0 Eelgrass load on the plants was
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8.0 Eelgrass (Table 8.3-5), based o
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8.0 Eelgrass surveys. No eelgrass b
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8.0 Eelgrass Areas containing eelgr
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8.0 Eelgrass Seasonal patterns amon
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8.0 Eelgrass 2002) inferred that th
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8.0 Eelgrass Table 8.3-2. Spring 20
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8.0 Eelgrass Table 8.3-4. Fall 2008
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8.0 Eelgrass Table 8.3-12. Oceanic
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8.0 Eelgrass Figure 8.3-2. Eelgrass
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8.0 Eelgrass Figure 8.3-6. Spatial
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9.0 Birds 9.0 BIRDS 9.1 INTRODUCTIO
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9.0 Birds changes in species number
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9.0 Birds the Brown Pelican populat
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9.0 Birds 9.4.2.10 9.4.2.11 9.4.2.1
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9.0 Birds 9.5.1 Distribution and Ab
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9.0 Birds discussed in Section 9.4.
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9.0 Birds Angeles Harbor. The relat
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9.0 Birds Table 9.4-1. Percent Comp
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9.0 Birds Table 9.4-3. Nest Numbers
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9.0 Birds Table 9.5-2. Species Comp
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9.0 Birds Table 9.5-4. Percent Comp
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9.0 Birds Table 9.6-1. Historical C
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9.0 Birds 70 12000 60 10000 50 40 3
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9.0 Birds 3500 shallow water sandy
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9.0 Birds 40 35 30 riprap aerial Nu
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9.0 Birds Number Observed 3500 3000
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9.0 Birds Figure 9.5-1. Total numbe
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9.0 Birds Number of Individuals 400
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9.0 Birds 7000 Mean Number of Indiv
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CHAPTER 10 MARINE MAMMALS
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10.0 Marine Mammals Gray whales dif
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10.0 Marine Mammals This page inten
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11.0 References 11.0 REFERENCES Abb
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11.0 References Dennison, W.C. and
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11.0 References Jacques, D.L., C.S.
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11.0 References North, W.J. 1983. S
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APPENDIX A STATION LOCATIONS
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Appendix A Station Coordinates (NAD
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Appendix B (A) Temperature (°C), S
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APPENDIX C FISHES
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Appendix C Table C-1. Combined Fish
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Appendix C LA01 LA02 LA03 LA04 LA05
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Appendix C Table C-3. Otter Trawl C
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Appendix C Table C-5. Otter Trawl B
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Appendix C Table C-7. Otter Trawl B
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Appendix C Table C-8. Lampara Catch
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Appendix C Table C-10. Lampara Catc
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Appendix C Scientific Name Table C-
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Appendix C Table C-14. Beach Seine
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Appendix D Table D-1. Ichthyoplankt
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Appendix D fish eggs (undeveloped)
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Appendix D fish eggs unid. unidenti
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fish eggs unid. unidentified fish e
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Appendix D Eggs Oligocottus / Clino
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Appendix D Eggs Rhinogobiops nichol
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Appendix D Juvenile Eggs Heterostic
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Appendix D Eggs Liparis spp. snailf
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Appendix D Juvenile Eggs Heterostic
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Appendix D Table D-11. Ichthyoplank
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APPENDIX E INFAUNA
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Appendix E Taxon LA-1 LA-10 LA-11 L
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Appendix E Protothaca laciniata Tax
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Appendix E Taxon LA1 LA2 LA3 LA4 LA
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Appendix E Table E-4. Otter Trawl,
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Appendix E Taxon LA1 LA2 LA3 LA4 LA
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Appendix E Octopus sp. 1 Philine sp
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Appendix E This page intentionally
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Appendix F Table F-1. Total Abundan
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Appendix F LARR-1 LARR-2 LARR-3 LAR
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APPENDIX G KELP AND MACROALGAE
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Appendix G Date Survey Site Observe
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Appendix G Species T1 T2 T3 T4 T5 T
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Appendix H APPENDIX H-1 AVIAN ECOLO
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Appendix H Table H-1. Avian Ecologi
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Appendix H GUILD 8 - UPLAND BIRDS G
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Appendix H APPENDIX H-2 NUMBER OF I
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Appendix H Table H-2. December A 20
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Appendix H Table H-3. December B 20
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Appendix H Table H-4. January A 200
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Appendix H Table H-5. January B 200
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Appendix H Table H-6. February A 20
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Appendix H Table H-7. February B 20
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Appendix H Table H-8. March A 2008
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Appendix H Table H-9. March B 2008
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Appendix H Table H-10. April A 2008
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Appendix H Table H-11. May A 2008 S
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Appendix H Table H-13. July A 2008
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Appendix H Table H-15. August B 200
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Appendix H Table H-16. September A
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Appendix H Table H-17. September B
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Appendix H Species Totals Zones 1 2
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Appendix H Species Totals Zones 1 2
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Appendix H Zones Species Totals 1 2
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Appendix H Zones Species Totals 1 2
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Appendix H Date ELEGANT TERN — OB
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APPENDIX I MARINE MAMMALS
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Appendix I Common Survey Station/ N
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Appendix I Common Name Survey Type
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Appendix I This page intentionally
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