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

Bolsa Chica Lowlands Restoration Monitoring2007 Annual ReportTable 1-3. Summary of fish mass (g) and biomass (g/m 2 ) (October 2007).PocketStation 1 (North)Station 2 (South)MarshGrand Beach Otter Purse Station 1 Beach Otter Purse Station 2 BeachTotal (g) Seine Trawl Seine Total Seine Trawl Seine Total SeineBat Ray 341 0 341.0 341.0 0Slough Anchovy 3.8 3.8 3.8 0 0Anchoa , Unidentified Juvenile 92.9 92.9 92.9 0 0California Needlefish 408 408.0 408.0 0 0California Killifish 174.3 60.3 60.3 15.8 15.8 98.2California Grunion 12.8 2.8 2.8 10.0 10.0 0Topsmelt 7,295.7 3,281.6 216.8 3,498.4 2,374.7 230.0 2,604.7 1,192.6Atherinid, Unidentified Juvenile 7 6.7 6.7 0 0Bay Pipefish 2.5 1.9 1.9 0.6 0.6 0Snubnose Pipefish 0.1 0.1 0.1 0.0 0Kelp Bass 40.9 7.5 0.3 7.8 2.0 31.1 33.1 0Salema 22.2 0 22.2 22.2 0Shiner Surfperch 13 0 13.0 13.0 0Striped Mullet 9.9 0.4 9.5 9.9 0 0Bay Blenny 0.4 0.4 0.4 0 0Cheekspot Goby 1 0.2 0.2 0.8 0.8 0Arrow/Shadow Goby Complex 1.3 0 0 1.3California Halibut 89.8 40.0 40.0 49.8 49.8 0California Tonguefish 20.5 0 20.5 20.5 0Diamond Turbot 280.9 9.7 140.0 149.7 1.2 130.0 131.2 0Total Mass (g) 8,817.7 3,368.6 180.0 734.3 4,282.9 2,474.8 537.9 230.0 3,242.7 1,292.1Area Sampled (m 2 ) 776 2,400 1,041 977 2,400 1,041 1,319Biomass (g/m 2 ) 4.34 0.08 0.71 2.53 0.22 0.22 0.98Juvenile anchovy at Station 1.Of all eighteen species captured, the only full sized fish capturedwere California killifish, California needlefish, and topsmelt.Figure 1-6 presents the standard length size class data for fourgroups of fish of interest: California halibut, kelp bass, Atherinids(topsmelt and grunion only), and anchovy (slough andunidentified juveniles). All groups were heavily represented byfish likely less than one year in age. In addition to the very smallhalibut captured, other small juveniles included striped mullet,salema, diamond turbot, bay blenny, and California killifish.Merkel & Associates, Inc. 30