86°W 
Is-7209 
NOVEMBER 1972 
EGGS (number per 10m?) 
IS-7308 
MAY 1973 30°N 
EGGS (number per 10m?) 
28°N 
26°N 
22°N 
Figure 3.—Continued. 
g4°w srw 
i) 
A 
EF ARE IS-7303 
JANUARY 1973 we ee 
EGGS (number per 10m2) \\ 
10 
> . 
26°N 
{| 
26°N 
24°N 
IS-7311 
JUNE-JULY 1973 
EGGS (number per 10m2) 
