1931 ANNUAL REPORT. 1930 43 



LAKE TROUT 



The reduction in the output of lake trout as compared with the previous 

 year was due to the prolonged and extremely stormy weather on Georgian bay 

 and Lake Huron during the fall spawning operations for the year 1930. The 

 output is fair, however, when compared with that of 1927 and 1928. 



During the year a total of 3,658,967 fingerlings were distributed. Of the 

 total distribution of fry and fingerlings, 15,636,702 were deposited in commercially 

 fished waters and 3,501,300 in game-fish waters. 



YELLOW PICKEREL 

 (Pike-Perch or Dore) 



A comparison of the pickerel distribution for 1930 with that of 1929 shows a 

 decided increase; on analysing this increase, it is found that the provincial 

 hatcheries at Kenora and Fort Frances made a very creditable contribution. 



Of the total production, 189,630,000 were deposited in commercially fished 

 waters and 22,915,000 in game-fish waters. 



WHITEFISH 



The decline in the total number of whitefish distributed in 1930 as compared 

 with the previous years was due to the weather conditions on Lake Erie, which 

 entirely prevented spawning operations. 



LAKE HERRING 



There was an increase of nearly four million in the output of herring in 1930 

 as compared with that of 1929. 



MASKINONGE 



The artificial propagation of maskinonge was carried out at Omemee, on 

 the Pigeon river, by using a portable hatchery as in previous years. Consider- 

 able basic work in this connection has been accomplished by the hatchery officials 

 in charge, and the knowledge gained should open up the way to greater success 

 in the future. 



SMALL-MOUTHED BLACK BASS 



Restocking depleted waters with small-mouthed black bass must be viewed 

 from many angles, particularly on account of the large extent of the waters 

 with which we have to deal. The introduction of small quantities of bass fry 

 or fingerlings to inshore waters of the Great Lakes and such large inland lakes 

 as Nipissing and Simcoe appears unnecessary when we consider the numbers of 

 bass fry produced in these waters annually by natural propagation. Suitable 

 restrictive measures on inshore w-aters and large inland lakes pertaining to bag 

 limit, size limit, season, and closed areas should suffice. No one remedy would 

 succeed in attaining our objective, namely, to maintain and, if possible, toimprove 

 the bass fishing in provincial waters. The courses being pursued to effect this 

 are: 



1. Protection of Fish during Spawning Season. — Although the closed 

 season to July 1st is a sufficient protection in southern Ontario, it is not so 

 4— G &. F 



