72 Investigations on the Life- Hi story 



TABLE XV. 



Showing Average Weight per Fish of Standard Length in Upper Waters: 



(b) Jfusde. 



The weight of muscle in fish coming to the estuaries is greatest in 

 July and August and least in October and November. In May and 

 June the weight of muscle is the same in fish in the upper waters as in 

 fish in the estuaries, but in July and August it is 22 per cent, less and 

 in October and November 25 per cent. less. 



TABLE XVI. 



Showing Average Weight of Muscle per Fish of Standard Length: 



w 



The weight of the testes increases in fish in the estuary and in the 

 upper waters throughout the season, and the increase is as marked in fish 

 inJJie estuaries as in fish in the upper waters. 



TABLE XVII. 



Show-ing Average Weight of Testes per Fish of Standard Length : 



