Fish Culture in Inland Wafers 235 



and of carbon dioxide, quantity and vertical distribution of the plank- 

 ton, and abundance of the bottom fauna in the deeper portions of the 

 lake. 



Dr. Moore's report pertained to the primary sources of food of 

 certain food and game and bait fishes of Lake George. She says : 

 " This investigation has sought to determine the nature of the food 

 taken by the young of certain food and game and bait fishes of Lake 

 George ; and with such data as a basis, to seek further information on 

 the primary sources of their food supply." 



Mr. Sibley's part in the investigation consisted of listing the species 

 of fish occurring in the lake, with notes on their feeding habits. 



Mr. Titcomb's part consisted of fish cultural observations, he de- 

 voting his time " to ascertaining the viewpoints of anglers and guides 

 as to past and present fishing conditions and their preferences as to 

 species to be fostered. 



" Investigations were made as to the relative abundance of mature 

 fishes in the lake, angling conditions on the principal tributary 

 streams, and with especial reference to the abundance of landlocked 

 salmon in streams where planted for the especial purpose of stocking 

 the lake. Particular attention was paid to the methods in vogue for 

 distributing and planting the lake trout after their arrival at the Lake 

 George railroad station." 



The combined report is truly an excellent and enlightening one 

 upon work well done, what there was of it. The investigations were 

 all too brief and incomplete for the purpose of general recommenda- 

 tions as concerns conservation of the fishes and stocking of the lake. 

 The studies indicate that the waters, except perhaps some tribu- 

 tary waters, are well adapted to various species, but there are much 

 data lacking which must be acquired before rational stocking or 

 conservation can be adequately undertaken. 



In his recommendations Dr. Needham asks : " What can be done 

 at Lake George to improve the fishing? " and adds: " My sugges- 

 tions fall into two groups, I : Measures Immediately Applicable, and 

 II : Measures Looking Toward the Future." Under each of these 

 main groups general and specific recommendations are made, only 

 a part of which ^^^ll be mentioned here as the others do not appear 

 • to demand any comment. 



The second recommendation with its subdivisions is, " Give more 

 attention to the planting of hatchery-reared lake trout and more 

 particularly : 



" a. ' Acclimatize ' the fingerlings to their new environment before 

 liberating them in it. Get them accustomed to feeding on the natural 

 food of the lake, and get them accustomed to a sight of their worst 

 enemies. ''^ 



" b. Plant them in water more than thirty-five feet deep. 



" c. Scatter them widely in planting." 



This recommendation is discussed in this paper under the subject 

 of "Planting." 



Under measures looking toward the future, the first recommenda- 



