Time of taking it. 

 Quantity consumed. 



II. Reproduction 



Interference with spawning, by lines, nets, etc. 



Age of male and of female respectively, when capable of 

 reproduction. 



Change in physical condition (color, shape, fatness, etc.). 



Date of spawning, and its duration as relating to the indi- 

 vidual as well as to the species. 

 Preferred localities for spawning, as to place, temperature, 



etc. 

 Special habits during spawning season. 

 Special habits before or after spawning. 

 Ratio of mortality in old fish from spawning, 

 ^''umber of successive years of capacity for spawning. 

 Nesting places. 



Are nesting places prepared ? if so, whether of grass, 

 stones, sand, etc., or cleared areas, and whether made 

 by one sex only, or both ? 

 If ridges or furrows are formed, how made. 



The eggs. 



Mode of fecundation. 

 Where laid. 



Where and how attached, if at all. 

 Covered up, and how, or exposed in water. 

 Number laid by one fish at one time, and the number 

 during lifetime. 



Size and color 



Special enemies. 



Guarding of eggs by either sex. 



