17 



APPENDIX F: HENKING 



year. They differ in that a greatly increased catch also occurred in the spring of 1902, 

 which was not quite the case in 1903; in the latter year, on the other hand, a high 

 average occurred in August. 



11. The brill shows the following averages: 



1902 1903 



1 '45 pounds 1-58 pounds. 



As with the turbot and sole, there is a distinct minimum in the summer and a maximum 

 in the winter. The greatest average of both years, with 8'3l pounds, occurs in December 

 1903, the same month in which the turbot had the highest average, viz. l6'06 pounds. 

 The sole had also a relatively high average in this month, viz. 3'15 pounds per day or 

 1227 pounds alltogether. 



12. Plaice. The average catch per day amounts to: 



1902 1903 



I-II sort 7-37 pounds 8'04 pounds 



in „ 40-93 „ 19-09 



48-30 pounds 27-73 pounds. 



The minimum for both years, with ca. '/j of the general average, lies in the summer, 

 for 1902 in July (and the data of the journals confirm this), further in June for 1903. 

 Both years agree also, in that the maximum lies in September with almost double the 

 general average; further, the curves agree in having a broad elevation in the months 

 August— November. (Fig. 9, 10, p. 22). 



13. Witch and lemon-sole have an average per day of: 



1902 1903 



230-77 pounds 220-60 pounds. 



This is a very remarkable agreement, when we consider the great numbers which 

 form the basis of the calculations. Further, the curves for the two years show quite a 

 striking resemblance, even in the small fluctuations, and only differ in that the highest 

 point i. e. the maximum falls in May for 1902, but in June for 1903, whilst it occurs 

 in July according to the journals for 1902. 



It is quite unmistakeable, that the minimum lies in December — January; the curve 

 rises high above this in all the remaining months. (Fig. 13, 14, p. 24). 



14. Dab. The average catch per day is: 



1902 1903 



30-82 pounds 35-99 pounds. 



The course of the curves is exactly the same as for the witch and lemon-sole; a 

 minimum in January is followed by a rising increase in the catch to the highestpoint 

 in May. From this onwards there is a rapid, though not quite uniform, fall to the 

 depression in December. 



.Appendix P 3 



