Chenik Lake - Cook Inlet Aquaculture Association, Kenai, Alaska

Appendix 19 (cont’d) Shell Lake 2009 - Macrozooplankton Body Size & Biomass
Site A
Body Size (mm)
Body Size (mm)
Seasonal
Weighted
Date 5-Jun 26-Jun 18-Aug 14-Sep 23-Sep Mean
Diaptomus 0.72 0.98 1.13 1.17 3.48 1.50
Cyclops 1.94 1.87 0.75 0.82 2.57 1.59
Bosmina 0.66 0.58 0.57 0.57 0.60
Daphnia l. 0.85 1.10 1.99 2.94 1.72
Holopedium 0.46 2.02 1.58 1.84 2.27 1.63
Other Copes 3.01 4.28 1.40 1.60 2.76 2.61
Total:
Site B
Body Size (mm)
Body Size (mm)
Seasonal
Weighted
Date 5-Jun 26-Jun 18-Aug 14-Sep 23-Sep Mean
Diaptomus 0.98 2.46 1.14 4.60 2.29
Cyclops 1.90 1.85 0.75 0.82 1.52 1.37
Bosmina 0.53 1.19 2.31 1.34
Daphnia l. 2.23 0.95 3.92 2.37
Holopedium 0.44 2.49 1.72 1.80 3.72 2.03
Other Copes 4.84 1.33 1.28 4.16 2.90
Total:
Site A & B
Biomass (mg/m 2 )
Biomass (mg/m2)
Seasonal
Weighted
Date 5-Jun 26-Jun 18-Aug 14-Sep 23-Sep Mean
Diaptomus 0.06 50.41 44.19 13.36 60.71 169
Cyclops 42.09 47.23 28.83 32.32 43.95 194
Bosmina 1.03 4.26 63.62 52.43 121
Daphnia l. 1.11 0.67 6.63 7.55 16
Holopedium 0.10 16.15 2.40 43.63 19.06 81
Other Copes 2.50 17.14 7.30 1.25 11.07 39
Total: 621
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