SEA-FISHERIES LABORATORY. 165 



(2.) These fishes are generally most abundant during 

 Tune, July, August and September. But on certain of 

 the grounds in winter (December and January) plaice 

 may be more abundant than in summer. 



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Mersey Shrimping Grounds. 



(3.) The number of fish caught by the shrimp trawl 

 varies greatly from time to time. On the Mersey grounds 

 the average for September, 1893, was nearly 3,000 per 

 haul, and the average for September, 1899, was nearly 



