950 



BULLETIN OF THE BUREAU OF FISHERIES. 



PLANTS IN LAKE MANATE. 



The area of this lake is 240 hectares; greatest depth, 37 meters; plankton 

 abundant; vegetation scant; maximum temperature of water, 8° C. at the 

 bottom, 24° C. at the surface; minimum temperature, 8° C. at the bottom 

 0° C. at the surface. The native fishes of this lake are, in the order of their 

 abundance, river perch, tench, roach, pike, bleak, eel, and burbot. Tables i, 

 II, III, and IV show the plants of the introduced fishes and the catch. Table v 

 gives the catch for 1907. 



Year. 



Table I.— Rainbow Trout (Saumo irideus). 



1897 

 1898 

 1899 

 1899 

 1900 

 1901 

 1 90 1 

 1902 

 1903 

 1904 



Size or age of fish planted. 



Fishes 2 years old 



Small fry 



Yearlings "" 



Fry 2 months old .1"." 



Fry 2 months old 



Yearlings '_"_ ^ ' _ 



Fishes weighing 400 grams each . 



Fry 2 months old 



Small fry '"_' 



Small fry J_"' 



Total . 



Number 

 planted. 



800 



4. 130 



8,618 



676 



I, 400 



300 



21 



4.500 



10, 000 



10. 000 



Number 

 caught. 



Weight 

 of catch. 



Kilograms. 



9. 700 



9, 800 



Table II.— Brook'Trout (Salveunus fontinalis). 



1903 

 1903 

 1903 

 1904 

 I90S 



Size or age of fish planted. 



Fry 2 months old __. 



Yearlings 



Fish weighing 200 grams each 



Small fry 



Yearlings "_'_ 



Total 



Number 

 planted. 



2, 240 

 80 



150 

 2,500 



S18 



5.488 



Number 

 caught. 



I 



Weight 

 of catch. 



Kilograms. 



Table III.— Black Bass (Micropterus salmoides). 



