Chenik Lake - Cook Inlet Aquaculture Association, Kenai, Alaska

Appendix 13 (cont’d) Shell Lake 2008 – Macrozooplankton Biomass
Body Size (mm)
Body Size (mm)
Seasonal
Seasonal
Weighted
Weighted
Date 4-Jun 30-Jun 18-Jul 11-Aug 25-Sep Mean Mean Mean Mean
Ergasilus
Epischura 1.40 1.18 1.38 1.50 1.38 1.37 1.27 13.61 13.61
Diaptomus 0.81 1.05 1.07 1.04 1.12 1.02 1.06 142.61 142.61
Ovig. Diaptomus 1.20 1.20 1.20 2.51 2.51
Cyclops 0.9 0.84 0.76 0.77 0.84 0.83 0.82 186.96 186.96
Ovig. Cyclops 1.08 1.10 1.17 1.02 1.09 1.08 11.04 11.04
Bosmina 0.62 0.75 0.60 0.58 0.56 0.62 0.57 37.38 37.38
Ovig. Bosmina 0.77 0.62 0.70 0.66 5.85 5.85
Daphnia l. 0.79 0.93 1.32 0.97 0.94 0.99 1.01 6.90 6.90
Ovig. Daphnia l 1.64 1.26 1.45 1.42 4.06 4.06
Daphnia r.
Holopedium 0.86 0.86 0.68 0.93 0.83 0.83 163.61 163.61
Ovig. Holopedium 1.19 1.19
Chydorinae
Polyphemus
Heterocope 3.22 3.22 75.88 75.88
Total: 650 650
Site B
Body Size (mm)
Body Size (mm)
Seasonal
Biomass (mg/m 2 )
Seasonal
Weighted
Weighted
Date 4-Jun 30-Jun 18-Jul 11-Aug 25-Sep Mean Mean Mean Mean
Ergasilus
Epischura 1.33 1.28 1.45 1.40 1.37 1.33 18.89 18.89
Diaptomus 1.08 0.93 1.03 1.10 1.04 1.02 130.89 130.89
Ovig. Diaptomus 1.28 1.28 1.27 2.34 2.34
Cyclops 0.87 0.80 0.80 0.80 0.82 0.82 0.81 114.67 114.67
Ovig. Cyclops 1.09 1.10 1.10 1.09 16.25 16.25
Bosmina 0.42 0.54 0.51 0.56 0.54 0.51 0.54 57.11 57.11
Ovig. Bosmina 0.64 0.62 0.63 0.63 8.30 8.30
Daphnia l. 0.56 1.13 0.77 0.83 0.82 0.82 4.84 4.84
Ovig. Daphnia l 1.10 1.10 1.10 7.12 7.12
Daphnia r.
Holopedium 0.38 1.16 1.00 1.28 0.93 0.95 1.01 55.72 55.72
Ovig. Holopedium 1.51 0.90 1.21
Heterocope
Site A
Biomass (mg/m 2 )
Total: 416 416
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