SKA-FISHERIES LABORATORY. YOY 
bay on the 16th. Ihe numbers keep high in that net 
to the end of the year, being over 9,000 on October 8th, 
over 11,000 on October 14th, and 7,000 on December 30th. 
In the fine net during the same period the catches are 
generally a few hundreds, sometimes less—1,000 is 
reached on two occasions. ‘The shear net and Yugel trawl 
in August and September sometimes obtained very large 
numbers of this and other Copepoda, such as 433,000, 
mainly Pseudocalanus, on August 8th. 
Calanus helgolandicus occurs throughout the year, 
but the numbers are low in the first quarter, and are still 
lower in April, when the greatest haul is 60, and many 
have only single specimens or none at all. The firs: high 
numbers occur in June (210 on the 10th and 185 on the 
12th) in the surface net within the bay. It is not again 
until August that the hundreds are reached (500 in the 
“pulley ” net and 800 in the * new ” net on August (th). 
The numbers run still higher in September and October, 
and on occasions up to the end of the year—for example, 
September 14th, 1,370; 16th, 2,000; October 12th, 
4,900; 23rd, 1,000; 29th, 1,400; December 23rd, 2,850. 
All these high numbers were taken with the coarse net, 
this being one of the larger, more powerful, swimming 
animals which in all probability escape from the feebler 
current at the mouth of the fine net. The shear net and 
Yugel trawl during August and September also frequently 
took very large numbers of Calanus, such as 22,500 on 
August 8th. 
Anomalocera pattersont only occurs between the 
middle of April and the middle of September, 
aide em tact, is only present in numbers above 
20e durme the latter half of April. During that 
period nearly all the catches were outside the bay ai 
Stations Land II. Compared with last year, the numbers 
