CA^ADIAy FISnERIlJS EXPEBITIOW lDl',-irj 



25 



moreover, been recorded in August on a single bank of the North sea. The spawning 

 takes place for the most part on the bank^, where the temperature keeps at about 4° 

 C, and it is generally supposed that the cod, for this reason, move down from the 

 Polar seas to the southward, in order to spawn en the Norwegian coastal banks about 

 Lofoten, which are washed by the temi^erate waters of the Gulf Steam, f'od held 

 in captivity seldom spawn in water below 2° C. 



The ppawniiifr in Canadian waters evidently extends over a very loniz jx-riod. On 

 the first cruises of the Acadia and Princess, May 29 to June 16, free larvae of cod were 

 found, while on the last cruises, July 21 to August 12, ova were still obtained in early 

 stages. This is doubtless due to the extraordinary conditions of temi)erature in these 

 waters. 



Of the Onus eggs and larva>, most no doubt, belong to 0. cimhrius, Plate III, 

 figs. 21 to 22, but as pigmentation, especially of the larvae, varies somew^hat, I could not 

 feel certain that all belonged to this species. A number of Onos eggs from the Acadia 

 captures certainly belong to another species. 



Onos sp 



• i-ioopr Station all hauls 



Princess I St 3-26 ^^95(^f„ore than loo . 



jrjmore than lo 



Fig. 17. 



