Table 4. --Continued 



Date: 

 1954 



Mean water Water 



temperature \ level 

 (°F. ) i (inches) 



Number ' Sea lampreys 



Weather j^j^^i^ Total length (millimeters) 



j Average Range 



1/ Trap inoperative during April 27-30 due to extreme flood conditions. 



2/ Based on 1, 755 specimens. 



3/ Based on 287 sjjecimens. 



4/ Based on 656 specimens. 



5/ Based on 3, 332 specimens. 



21 



