1983 data were low and observed data fell within the 95% confidence 

 intervals for both models (Fig. 3). 



7.5 



5.8- 



2.5- 



e 



-2.5- 



-i . 1 1 1 1 1 , 1 1 1 . 1 1 1 — 1 r 



OCT DEC FEB APR JUN AUG OCT DEC FEB APf? JUN AUG 

 1981 1982 1983 



7.5- 



5 8- 



2 5- 



8 8- 



-2.5- 



T 



OCT 



DEC 



FEB 



o 



APR JUN AUG 

 1982 data 



OCT DEC FEB 



— 1 ' 1 — ■ — r 



APR JUN AUG 

 1983 data 



Figure 3. Forecast ( ) and 95% confidence limits ( ) for A. americanus 



larvae at EN (top figure) and NB (bottom figure). The EN model 

 was fit to data from October 1976 through September 1982; the NB 

 model was fit to data from October 1978 through September 1982, 



Sand lance were most prevalent as larvae in the plankton programs, 

 They were present, but not abundant, in other finfish monitoring 

 programs; eggs are demersal (Table 2) and were not found in plankton 

 samples. Larger sand lance burrow into the sand (Table 2) and this 

 behavior may account for the low numbers of post-larval sand lance. 



14 



