277 



foreign flag) by the international fleet in 1977 and still realize an increase 

 of nearly 36,000 animals (Figure 2). In the last three years, the population of 

 this stock has increased by approximately 92,000 animals. The modest take 

 of eastern spinners (6,500 animals proposed by the Administrative Law Judge), 

 by the United States fleet is perfectly consistent with the theory of manage- 

 ment of renewable resources. 



According to data developed by NMFS, the offshore spotted population could 

 sustain a take of 90,570 animals (64.393 United States and 26,177 foreign flag) 

 by the international fleet and still realize an increase of nearly 56,400 animals 

 (Figure 3). In the last three years, the population of this stock has increased 

 by about 174.000. The take of 64,393 offshort spotted porpoise by the United 

 States fleet in 1977, as proposed by the Administrative Law Judge, is per- 

 fectly consistent with the theory of management of renewable resources. 



FIGURE 2 



NMFS BEST ESTIMATE OF STOCK SIZE, BIRTHS, NATURAL DEATHS, 

 NET REPLACEMENT, DEATHS AS A RESULT OF INTERNATIONAL TUNA FLEET 

 ACTIVITY AND PROJECTED STOCK INCREASE IN 1977 

 FOR EASTERN SPINNER PORPOISE 



1.3r 



1.2 



1.1 



0.5 



tn 

 c 

 o 



■H 



0.4 



0.3 



0.2 



0.1 



1,292,000 



129,200 



51,680 



21 



35,907 



6,500 



9,273 

 . 1/ / A 



7& 



Stock 

 Size 



Births 



Natural 

 Deaths 



Net 

 Replace- 

 ment 



U.S. 



Tuna 



Fishing 



Deaths 



Source: Southwest Fisheries Center - 

 Admin. Rept. LJ-76-2 9 



Marine Mammals - Incidental Taking - Fed. Reg. Vol. 42, No. 40 



Foreign 



Flag 



Tuna 



Fishing 



Deaths 



Stock 

 Increase 



