and at all stations north, whereas at the next station south 

 (38°49' N latitude) it was almost completely replaced by the 

 southern variety, Eucalanus bungii calif ornicus. In the sam- 

 ple taken at this latter station only two adult specimens of 

 the northern variety were found among forty specimens of 

 the southern variant. The USS NEREUS bathythermograms 

 show an 8-degree F difference in surface temperature be- 

 tween these stations. On the west coast of North America 

 the two varieties overlap along the Oregon coast and south- 

 ward to Cape Mendocino, California. 



A study of the copepod larvae and juveniles indicates 

 that active restocking was taking place over much of the 

 area. The nauplii were especially abundant at Bering Sea 

 stations and at station N23 in Kotzebue Sound, where Acartia 

 was actively reproducing. The presence of the cladocerans, 

 Podon and Evadne, at stations N21 and N23 is also correlated 

 with the warmer coastal water. Sagitta sp. was most abundant 

 at stations in the Bering Sea but was distributed all the way to 

 the northernmost station in the Arctic, where both young and 

 adults were taken. 



Figure 

 certain 



57. Locality 

 copepods. 



■ 



LOCALITY RECORDS 

 A Tortanus Discaudatus 

 Epilabidocera Amphitrite: 

 D Centropages Mcmurrichi 

 A Metridia Lucens 

 W Calcanus Tonsus 

 ■ Eucalanus Bungii Bungii 





hit Mirm 



