Table 2.

Estimates of photosynthesis versus irradiance curve parameters α and I sat forSynechococcus sp. incubated at different temperatures

ExptTemp (°C)UV treatmentResult for:
α ± 95% CIaIsat ± 95% CIb
8 July 1995 (1st [morning])70+11.0 ± 1.8487.3 ± 108.7
16.9 ± 5.5404.1 ± 96.2
Pooled14.0 ± 3.1438.9 ± 32.3
65+20.1 ± 4.3524.6 ± 146.8
18.4 ± 4.5553.5 ± 215.5
Pooled19.3 ± 2.7553.0 ± 47.4
55+7.2 ± 1.7483.3 ± 58.1
10.6 ± 2.0486.4 ± 67.9
Pooled8.6 ± 1.9481.3 ± 44.1
8 July 1995 (2nd [afternoon])70+6.0 ± 1.5541.0 ± 228.1
7.4 ± 1.4576.0 ± 84.5
Pooled6.7 ± 1.2566.2 ± 59.8
65+7.4 ± 1.0558.9 ± 141.6
8.8 ± 1.1571.8 ± 48.3
Pooled8.1 ± 0.9574.4 ± 41.0
55+2.9 ± 1.1457.5 ± 150.5
4.1 ± 0.5523.6 ± 29.9
Pooled3.5 ± 0.9493.3 ± 53.1
25 June 199670+12.7 ± 2.9563.6 ± 94.2
16.6 ± 3.1549.1 ± 118.5
Pooled14.6 ± 2.4556.9 ± 34.6
65+19.6 ± 2.7581.2 ± 90.9
17.8 ± 1.6655.9 ± 61.1
Pooled18.6 ± 1.6614.2 ± 29.1
55+7.7 ± 1.5536.2 ± 59.0
8.6 ± 1.3557.4 ± 41.4
Pooled8.2 ± 1.0542.9 ± 22.2
  • a Counts per minute per microgram of Chla per hour per watt per square meter.

  • b Watts per square meter.