140 Investigations on the Lifo- Ifi 



Nitrogen Balinc*. per Fish of Standard 



Available for liberation of energy, 22 grms. = 240,000 Kgrns. 



Muscle. Ovaries. 



Estuary (May to August), . 214 



Upper Water (Oct. and Nov.). 1 



214 

 113 



5-7 

 86-0 



Loss- 101 



Gain 80-3 



Available for liberation of energy, 20 grms. 217, Odd Kgms. 



MALE SALMON 1896. 



The number of male fish analysed is too small to allow of any good 

 average being struck as i-egnrds the amount of material available fov the 

 evolution of energy. Especially is this the case as regards the later part 

 of the season, since only one male fish from the upper waters was 

 obtained in October and November. 



In the earlier part of the season the evolution of energy appears about 

 the same in the male as in the female. 



TABLE 

 Fat Balance per Fish of Standa/rd Length. 



Estuary (M ay to August), 

 Upper Water (July and August) 



Muscle. 



756 

 428 



Loss- 328 



Testes. 



0-74 

 2-41 



Gain 1-67 



Available for liberation of energy, 326 grms. = 1,271,400 Kgrus. 



Muscle. 



Testes. 



Estuary (May to August), 

 Upper Water (Oct. and Nov), | 



756 

 103 



0-74 

 6-34 



Loss 653 



I Gain 5 '60 



Available for liberation of energy, G47 grms. 2.523,300 Kiriu? 



