FISHERY BULLETIN: VOL. 83, NO. 2 



forms. Acartia, "Paracalanus" , and "other" nau- 

 plii were significantly more abundant in 3-6 April 

 samples than in the prestorm set (Fig. 2), while 

 the abundance of larval fish in our samples de- 

 creased, as did that of adult and copepodid 

 Oithona. An increase in abundance of appen- 

 dicularians was almost significant. From the point 

 of view of a larval or young juvenile fish, there 

 were more items of desirable food {copepod nau- 

 plii and fewer siblings after the storm. No change 

 was detected in those taxa (adult Labidocera and 



Corycaeus, chaetognaths) likely to be important 

 zooplanktonic predators on larval anchovy. 



Some of these changes appear to be continua- 

 tions of trends evident before the storm (Fig. 2). 

 However, the fact that larval copepods of several 

 types were more abundant following the storm 

 suggests that the storm directly or indirectly 

 stimulated reproductive activity, though stimula- 

 tion of hatching of benthic eggs (cf. Uye and 

 Fleminger 1976; Landry 1978) or advection of 

 populations from an area of greater fecundity 



-| 300 



200 



100 



Nauplior 

 "Paracalanus 



UJ 



o 

 < 



z 



03 

 < 



2.0 



1.5 



1.0 



Female 

 - Calanus 



as - 



100 



1 1 — — n 1 r 



29 30 31 3 4 5 6 



March 



— I 1 n 1 



29 30 31 3 4 



March April 



Morch 



Figure 2. — Temporal change in total abundance (m ) of selected zooplanktonic taxa. The vertical line in each panel separates 

 "prestorm" on the left from "poststorm" on the right. "Paracalanus" includes some Clausocalanus spp. 



156 



