NOTE Johnson: Recruitment variability of Limanda feiruginea 



857 



25 



° larvae 

 -• — zooplankton 



30,000 



- 25,000 



20,000 n 



15,000 



- 10,000 



5,000 



10 11 12 



° 25 



20 



40,000 



30,000 



20,000 2_ 



3 



10,000 



Figure 3 



Monthly mean catch per 10 m- of Limanda ferruginea larvae, Calanus sp., and Pseudocala- 

 nus sp. in Southern New England for years 1977-87. 



1987 showed matches in peak spawning and prey produc- 

 tion (Fig. 4). 



Larger gaps exist between predator and prey in GB for 

 many of the year classes (Fig. 5). There was a temporal gap 

 of almost 56 days between yellowtail flounder and Calanus 

 sp. abundance during 1980 and 1982. A slightly smaller 

 mismatch occurred during 1977 at 45 days. The poor year 

 class 1986 had the smallest span in time between predator 

 and prey (16 days) when larvae peaked prior to Calanus 

 sp.. For the same year class, 1986, the difference between 



peaks was slightly greater between larvae and Pseudocala- 

 nus sp.. There was a smaller mismatch between Pseudo- 

 calanus sp. and larvae for year class 1982, amounting to 

 52.6 days (Fig. 5). The stronger year classes, 1977 and 1980, 

 showed more definite matches in spatial timing (<45 days). 

 To test for a relationship between predator-prey overlap 

 and year-class strength, differences between predator and 

 prey peaks versus year-class strength were plotted for the 

 eleven-year time period (Fig. 6). Two predator and prey 

 combinations (1^), yellowtail larvae and Calanus sp., and 



