Table 1.

Effects of different temperature steps on the development rate of echinoid embryos. Data shown are Q₁₀ values for different temperature steps for rates shown in figure 6.

temperature step	Q10 values for difference in development time
−1.8 to 0°C	33.65
0 to 5°C	4.06
5 to 10°C	2.60
10 to 15°C	2.76
15 to 20°C	2.77
20 to 25°C	2.01