InpingAin 

 Trawls 



B F.B FCoKt 



B S-B SCo>(l 



I I 



1 t-i ^ 



B SSInftK 



B S$ln(tK 

 I 1 



1 t-l ! 



12 3 



tK l-B _ 

 U 3 



-? 3 t- 



K^^|-B^SCos(tK^|«B^SCus(tK^)-Il^SSin(tK^). 



-2 3 t- 



-B SSIn 



-B SSIn 



b I t-1 2 



, )»B SColltK, 



-2 3 t-?o 



20.5 3'3 31. S 52 



29.0 353 39. 1 52 



23.7 nt, 23.1 2I> 



it.! 176 25.1 26 



22.5 176 16.5 26 



29.7 176 161.2 26 



sidudi (pre<1icted-observe 



Historically, levels of totncod abundance have fluctuated greatly' in 

 impingement and trawls (NUSCo 1982a) . Tomcod were impinged primarily 

 from December through January and caught in trawls from April through 

 June. Because tomcod spavm and mature in fresh or brackish waters, and 

 their eggs are demersal (Table 2) , they were Infrequently seen in 

 plankton samples. All models except for TT seemed to predict the 

 patterns of catch fluctuations reasonably well. Tomcod catches in 1983 

 were higher than predicted in most cases. The decrease in catch at TT 

 was a result of the high variability in catches at that station and not 

 a reflection of the general tomcod population variability. 



Myoxocephalus aenaeus , grubby 



The grubby, a nearshore demersal fish, was well represented in all 

 programs at Millstone except seines (Table 1). It ranked ninth in trawl 

 samples and was most abundant from December through May (Table A) . Over 

 one-third of all trawl-caught grubby came from NR (Table 3) . Larval 

 grubby, collected from January through May, ranked fourth in entrainment 

 samples and fifth in offshore plankton samples. Eggs were not abundant 



30 



