192 



Brown Trout 



minutes she turns on her side with a flopping motion (Fig. 193), 

 and during this time deposits the spawn. The male is generally 



FIG. 194. Trout spawning-bed, showing the gravel heaped up. 



beside her throughout the process of spawning, which usually occupies 

 from two to four days, according to the nature of the water and the 



