174 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



Table 32, — Average size composition of total 

 each of the seasons 

 [In thousands of fish] 



haddock, in 



Table 35. — Division of landings for each size 



' All values calculated by dividing 18-year total for total haddock by 18 

 rather than by summing 18-ye.ar averages of scrod plus large. 

 ' Size groups by 3-cm. intervals. 



Table 33. — Size composition of total haddock in the average 



year 



[In thousands of fish] 



' Size groups by 3-cm. intervals. 



Table 34. — Undersized haddock landed, by years 

 (In thousands of fish] 



1 Size groups by 3-cm. intervals. 



DISCUSSION AND SUMMARY 



1. Presented in this paper is an outline of a 

 study of Georges Bank haddock and also details 

 of landings for the years of 1931 to 1948. Pounds, 

 numbers, and average weights of fish, and size 

 compositions of landings are given for scrod, for 

 large, and for total haddock. While these data 

 are presented primarily as backgi-ound for further 

 studies, the averages and ranges are informative. 

 The values presented, in our opinion, are as nearly 

 complete a record of the quantities of Georges 

 Bank haddock that were landed and sold as can 

 be readily assembled. They are more nearly 

 complete than values previously given (Schuck 

 1949), which represent only Georges Bank had- 

 dock landed at the ports of Boston, Gloucester, 

 and New Bedford, Mass., and Portland, Maine. 



2. The industry is most affected, not by the 

 average or ordinary condition of the fishery, but 

 by deviations from the normal, be it in terms of 

 pounds of fish, of numbers of fish, of numbers of 

 certain sizes as compared with previous years, or 

 of a change in the seasonal cycle of the above. 

 But, in order to measure deviations, it is first 

 necessary to determine the norm from which they 

 deviate. We can define the average year as fol- 

 lows: In the average year (during the period 1931- 

 1948) there were 94,196,000 pounds of haddock 

 (30,79 1 ,000 pounds of scrod and 63,405,000 pounds 

 of large) landed from Georges Bank. The aver- 

 age weight of these fish was 2.55 pounds (1.69 

 for scrod, 3.40 for large) and 36,875,000 individual 

 fish (18,214,000 scrod and 18,661,000 large) were 

 landed. Of these numbers landed, there were 

 practically none less than 27 centimeters (9.6 

 inches), and none more than 81 centimeters (32.1 

 inches) in length. The 45-centimeter (17.9-inch) 



