FISHERY BULLETIN: VOL 81, NO. 3 



The very large area enclosed by the 10~ 3 contour 

 was the striking aspect of the pattern for run E at 5 

 mo (Fig. 6E). Cells in this area had a mean concentra- 

 tion of 0.002 and contained in total a concentration of 

 0.9. This region formed an exaggerated example of 



the results of prolonged leptocephalus entry into the 

 Gulf Stream. In this case, the observed distribution is 

 because larvae began close to the Gulf Stream, in the 

 region where the main patch of concentration formed 

 in other runs. 



Figure 6. — Concentration contours of American eel leptocephali after 150 d of drift (29 July). 



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