180 TJ. S. BUREAU OF FISHERIES 



Production of frozen fishery products in 1930 and 1929, compared 



Species 



Blueflsh (all trade sizes) 



Butterflsh (all trade sizes) 



Catfish 



Cisco (Lake Erie) 



Cisco (lake herring), including bluefln, blackfln, and chub 



Cisco (tuUibees, Canadian lakes) 



Cod, haddock, hake, pollock (including haddock fillets) 



Croakers 



Flounders - 



Halibut (all trade sizes) 



Herring, sea (including alewives and bluebacks) 



Lake trout 



Mackerel (except Spanish) 



Pike, blue and sauger 



Pike, yellow or wall-eyed 



Pike (including pickerel, jacks, and yellow jack) 



Sablefish (black cod) - 



Salmon, ehinook 



Salmon, silver 



Salmon, fall and pink 



Salmon, steelhead trout 



Salmon, all other 



Scup (porgies) 



Shad and shad roe 



Shellfish 



Smelts, eulachon, etc 



Squid 



Sturgeon and spoonbill cat 



Suckers 



Weakflsh (including southern "sea trout") 



Whitefish 



Whiting 



Miscellaneous fish 



Total 



Production of certain species of frozen fish for various years, 1920 to 1930 



1 Including steelhead trout. 



' Including haddock fillets. 



HOLDINGS 



During 1930 the average monthly holdings of frozen fish and shellfish 

 increased 12 per cent over the average monthly holdings during 1929, 

 and 25 per cent over the 5-year average of monthly holdings. Indi- 

 vidual monthly holdings during the year were all above normal when 

 compared with the 5-year average, being from 4 to 39 per cent higher. 

 Compared with the respective monthly holdings in 1929 they were 

 from about 1 to 26 per cent greater dm-ing 10 months of the year, 

 and 6 to 20 per cent less during the remaining 2 months of the year. 



