Table 1. Photosynthetic parameters of in situ H. banksii-dominated assemblages (±SE) at three temperature ranges.
Temperature | R (mg O2 gDW-1 h-1) | P m (mg O2 gDW-1 h-1) | α | E c (μmol m–2 s-1) |
---|---|---|---|---|
8-12°C | 0.12 (0.02) | 0.57 (0.04) | 0.006 (0.0005) | 48.39 (2.5) |
13-17°C | 0.16 (0.02) | 0.6 (0.02) | 0.006 (0.0012) | 57.17 (2.8) |
18-22°C | 0.24 (0.03) | 0.58 (0.05) | 0.006 (0.0008) | 76.26 (5.7) |
ANOVA | ||||
F2,9 | 9.5 | 0.35 | 0.05 | 13 |
p | 0.014 | ns | ns | 0.0066 |
Parameters were; assemblage respiration (R), maximum NPP (P m), light-use efficiency (α), and irradiance at compensation (E c). Data were standardized by dry weight of algal material for comparison with laboratory data. ANOVA were used to test differences in photosynthetic parameters between temperature ranges.