2007 Annual Monitoring Report (pdf 16MB) - Bolsa Chica Lowlands ...

More documents

Recommendations

Info

BS PM Rep1BS PM Rep2BS PM Rep3PS1 Rep1BS1 Rep1OT1 Rep1STATION 1OT1 Rep2PS1 Rep2BS1 Rep2BS1 Rep3PS1 Rep3OT1 Rep3OT2 Rep1PS2 Rep1BS2 Rep1OT2 Rep2PS2 Rep2BS2 Rep2STATION 2OT2 Rep3BS2 Rep3PS2 Rep3Beach SeinePurse SeineOtter Trawl0 100 200 400 600 800MetersFisheries Sampling LocationsBolsa Chica Lowlands Restoration ProjectOrange County, CAFigure 1-5Merkel & Associates, Inc.
Bolsa Chica Lowlands Restoration Monitoring2007 Annual ReportDue to the difficulty of conclusively distinguishing between juvenile arrow goby (Clevelandia ios) andshadow goby (Quietula y-cauda), juvenile gobies that may have belonged to either species wereidentified as "arrow/shadow goby complex". These functionally similar species commonly co-occurand occupy similar niches in the demersal fish community. Adult arrow and shadow gobies and othergobies were identified to the species level. This method is regularly employed in similar fish studies.All macroinvertebrates captured in the fish sampling nets were collected, identified to the lowesttaxonomic level possible, counted, and released. Due to the tremendous spatial variability of thesespecies in the lagoon and the non-targeted methodology employed here to sample them, collected datawere intended to generate a list of species that occur in the project area, rather than to providedefinitive density and biomass data on their populations.At each study location, physical water quality parameters were measured coincident with the biologicalsampling described above. A Hydrolab Quanta ® multi-probe, calibrated in accordance withmanufacturer specifications, was used to collect temperature, dissolved oxygen, turbidity, and salinitydata. Readings were taken at the bottom and top of the water column.Voucher specimens of any species that were not readily identifiable in the field were collected andpreserved in a 10% buffered formalin/seawater solution and later transferred to 70% ethanol forsubsequent taxonomic analysis in the laboratory. In the lab, the investigator, date of analysis, sampleparameters, and specimen identification were recorded on hard copy data sheets and the specimenstored for future reference.ResultsThe fish and invertebrates captured in the fishing gear are detailed below.FishA total of 18 species of fish, representing 14 families, were captured throughout the study site inOctober 2007 (Table 1-2). The majority of the fish were captured at Station 1, characterizing the fishcommunity at the inner end of the FTB furthest from the ocean. At Station 1, a total of 2,185 fish,represented by 13 species, were captured. The mean density across gear types at Station 1 was 0.52individuals/m 2 . The most abundant species was topsmelt (Atherinops affinis), followed by juvenileanchovy (Anchoa sp.). Together, these two species comprised 95% of the fish captured. The juvenileanchovy were not developed enough to definitively identify them as either deepbody anchovy (Anchoacompressa) or slough anchovy (Anchoa delicatissima). One adult slough anchovy, however, wascaptured in the same haul. California killifish (Fundulus parvipinis) and small kelp bass were capturedalong with a number of juvenile Atherinids. Three California grunion (Leuresthes tenuis) were caughtwith the topsmelt, suggesting the juvenile Atherinids were probably either topsmelt or grunion. Thesespecies often occur together during larval and juvenile stages (Ehrlich et al, 1978) and were notdeveloped enough to definitively identify. Thirty-two juvenile striped mullet (Mugil cephalus) werealso captured at Station 1.Other species that were represented in small numbers at Station 1 were: 2 California needlefish(Strongylura exilis), 2 bay pipefish (Syngnathus leptorhynchus), 2 diamond turbot (Hypsopsettaguttulata), and single individual snubnose pipefish (Syngnathus arctus), bay blenny (Hypsoblenniusgentilis), cheekspot goby (Ilypnus gilberti), and California halibut (Paralichthys californicus).Merkel & Associates, Inc. 28
Page 1 and 2: BOLSA CHICA LOWLANDSRESTORATION PRO
Page 3: Bolsa Chica Lowlands Restoration Mo
Page 7 and 8: Bolsa Chica Lowlands Restoration Mo
Page 9: Bolsa Chica Lowlands Restoration Mo
Page 20 and 21: MutedPocket MarshSTATION 1wq1STATIO
Page 22 and 23: 22Temperature35Salinity2134.5203419
Page 30 and 31: Cordgrass Planting Area (0.7 acres)
Page 36 and 37: 100%California Halibut Size Class D
Page 40 and 41: 506647Full Tidal BasinFuture Full T
Page 46 and 47: FullMutedGrandFull Tidal Basin Tida
Page 48 and 49: FullMutedGrandFull Tidal Basin Tida
Page 68 and 69: M&A# 05-162-01August 2006 to Januar
Page 82 and 83:
Bolsa Chica Lowlands Restoration Mo
Page 84 and 85:
Page 86 and 87:
Page 88 and 89:
Page 90 and 91:
Page 92 and 93:
Page 94 and 95:
Page 96 and 97:
Page 98 and 99:
Page 100 and 101:
Page 102 and 103:
Page 104 and 105:
Page 106 and 107:
Page 108 and 109:
Page 110 and 111:
Page 112 and 113:
Sampling Location CoordinatesCalifo
Page 114 and 115:
Cordgrass Transplant in Bolsa Chica
Page 116 and 117:
Page 118 and 119:
Shorebirds (cont'd)Upland birdsRudd
Page 120 and 121:
50664749484668694542417040393863717
Page 122 and 123:
2007 Breeding Season for the Califo
Page 124:
Ninety-five-percent of documented m
Page 128 and 129:
Final ReportWestern Snowy Plover Ne
Page 130 and 131:
StudyAreaMeters0 250 500 1,000Figur
Page 132 and 133:
2007 Nest LocationsNest LocationAt
Page 134 and 135:
Western Snowy Plover Nesting at Bol
Page 136 and 137:
Page 138 and 139:
Page 140 and 141:
Page 142 and 143:
Page 144 and 145:
Page 146 and 147:
Page 148 and 149:
Page 150 and 151:
Page 152 and 153:
Bolsa Chica Lowlandss Restoration M
Page 154 and 155:
Page 156 and 157:
Page 158 and 159:
Page 160 and 161:
Page 162 and 163:
Page 164 and 165:
Page 166 and 167:
Page 168 and 169:
Page 170 and 171:
Page 172 and 173:
Page 174 and 175:
Page 176 and 177:
Page 178 and 179:
Page 180 and 181:
Page 182 and 183:
Page 184 and 185:
Page 186 and 187:
Page 188 and 189:
Page 190 and 191:
Page 192 and 193:
Page 194 and 195:
Page 196 and 197:
Page 198 and 199:
Page 200 and 201:
Page 202 and 203:
Page 204 and 205:
Page 206 and 207:
Page 208 and 209:
Page 210 and 211:
Page 212 and 213:
Page 214 and 215:
Page 216 and 217:
Page 218:
show all

2007 Annual Monitoring Report (pdf 16MB) - Bolsa Chica Lowlands ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?