RAPPORTS. XIV : THOMPSON — 32 — 



March and June are only about half those for July and May, and at the period of mini- 

 mum from July to November the monthly landings are only about a quarter of those 

 during the two months of maximum. 



Hake (fig. 68) exhibits, as is well known, a very great and irregular seasonal fluc- 

 tuation. Its maximum is in the month of October and its minimum in early spring. In 

 the latter season the catches are quite insignificant; they gradually ascend during the 

 winter months, and rapidly descend from October or November to the February minimum. 



The fluctuations of Whiting (fig. 69) are remarkable, because they are inverse in 

 character to those of the majority of our fishes. Whiting alone shows a minimum in early 

 summer and a maximum in mid winter. The monthly landings in January and December 

 are about double those in May and June. 



Lastly, (fig. 70) the catch of Catfish shows, like all the rest, periodic fluctuations. 

 In this case the maximum is in the late spring or early summer, about the month of 

 May, and a low minimum is reached in November and December, when the landings 

 become very small indeed. 



