o 



z 

 z 

 < 



19 20 21 2 2 23 24 25 26 27 28 29 30 31 32 



FORK LENGTH (mm.) 



Figure 1. — Size of copepods ingested in relation to fork length of Atlantic 

 larvae. Range of copepod dimensions shown by vertical lines; mean length 

 shown by trend lines. 



(2) 

 100 I— f- --^ 



menhaden 

 and width 



80 - 



60 



40 



20 



(5C) 



(5) 

 (6) • 153) 



(43) 



f. 



Oiii,i, 



0400 



(56) 



(3) 



(30) 



(21) 



(46) 



(14) 



J I L 



(55) 



(9) 



:4o) 



*5) 



(54) 

 (46) 



ue> 



(5) 



(II) 



I  I I I I I I 



oeoo 



1200 



1600 A 



2000 



2400 



DAWN 



DUSK 



TIME OF DAY 



496 



Figure 2. — Scatter diagram showing the relation between the number of alimentary tracts of 

 Atlantic menhaden larvae containing food and time of collection. Number of larvae examined 

 shown above each dot. 



U.S. FISH AND WILDLIFE SERVICE 



