a positive trendp < 0.01
Considering Mallomonas annulata , negative growth could be detected at 5°C (−0.213 day −1 ) followed by a positive trend from 8°C (0.059 day −1 , p < 0.01) to 11°C (0.386 day −1 , p < 0.01) and to 15°C (0.508 day −1 , p < 0.01) before slightly but not significantly ( p = 0.997) decreasing at 19°C (0.485 day −1 ) and 23°C (0.443 day −1 , p = 0.244).