Table 3 Growth rates of Immergentia stephanieae in nutrition and no-nutrition treatments in Experiment 2
Cystid appendage (cya) growth | Growth | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Colony size | No. of colonies observed | Sample | Feeding treatment | cya 1 | cya 2 | cya 3 | cya 4 | Total cya growth (µm) | Days observed | Growth rate day−1 (µm) |
Small (ancestrula + 3 autozooids) | 2 | |||||||||
TL1 | x | 4,16 | 1,98 | 2,02 | - | 8,2 | 22 | 0,4 | ||
TL1-F | ✓ | 406,64 | 4,27 | 398,89 | - | 504,9 | 22 | 23,0 | ||
Colony size | No. of colonies observed | |||||||||
Large > 30 zooids | 4 | |||||||||
TL-2 | x | 406,64 | 4,27 | 398,89 | - | 809,8 | 22 | 36,8 | ||
TL3 | x | 1,35 | 50,91 | - | - | 52,3 | 20 | 2,6 | ||
TL4 | x | 3,25 | 0,92 | - | - | 4,2 | 20 | 0,2 | ||
RS1 | x | 2,33 | 0,73 | - | - | 3,1 | 7 | 0,4 | ||
Mean = 217,3 ± SD 396 | Mean = 10 ± SD 18 | |||||||||
Colony size | No. of colonies observed | |||||||||
Large > 30 zooids | 5 | TL2-F | ✓ | 0,28 | 1,43 | - | - | 1,7 | 20 | 0,1 |
TL3-F | ✓ | 40,99 | 18,75 | - | - | 59,7 | 20 | 3,0 | ||
TL4-F | ✓ | 26,75 | 232,54 | - | - | 257,3 | 20 | 13,0 | ||
RS1-F | ✓ | 310,17 | 380,03 | 247,35 | 561,09 | 1498,6 | 20 | 74,9 | ||
RS2-F | ✓ | 4,28 | 9,17 | - | - | 13,4 | 7 | 1,9 | ||
Mean = 366,6 ± SD 641,3 | Mean = 23 ± SD 32 | |||||||||