FISHERY BULLETIN: VOL. 87, NO. 3, 1989 



o 



C3 



3 

 O 



CD 



.4 



G =-0.0036 + 0.0094 T 

 r^ = .57 



10 15 20 



Temperature (°C) 



a 



25 



30 



Figure 1. — Weight-specific gi-owth coefficients (G) of marine fi.sh larvae in 

 relation to temperature (T). A. Ranges and midpoints of reported G and 

 T values. Data, letters designating species and references are from Table 

 2. B. Regression relationship of midpoint G on midpoint T. 



Stage Duration 



Larval stage duration ranged from 10 days to 

 >550 days, based on the reported growth rates 

 (Table 3; Fig. 2). The regression relationship for 

 27 species indicated that stage duration (D) de- 

 clines rapidly as temperature (T) increases. 



D = 952.5^"^''^^^ 



r2 = 0.70 Sh = 0.1418. (2) 



Predicted stage duration ranged from 25 days 

 at 30°C to >165 d at 5°C. The variability in 

 stage duration was greatest at low tempera- 



476 



