230 



Fishery Bulletin 89(2). 1991 



relationship with tide range at Tulagi. Overall, the most 

 significant variable was total rainfall. The results of the 

 regression analysis of the independent stimuli (Table 

 5) were similar, except at Vona Vona where a four- 

 variable model including zooplankton density, wind, 

 and days of rain gave the best fit. 



Spratelloides For S. delicatulus, moon phase was 

 highly correlated with spawning and accounted for at 

 least 26% of the variation in spawning periodicity at 

 all sites (Table 4). Increased cloud cover and reduced 

 tidal range were also correlated with spawning at Vona 

 Vona and Tulagi. However, when data from all sites 

 were combined, the most significant correlates were 



