278 



FIGUR £mfs 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 OFFSHORE SPOTTED PORPOISE 



64,393 



56,390 



26, 177 



VTA 



Natural 

 Deaths 



Source: Southwest Fisheries Center 

 Admin. Rept. LJ: 76-29 



Net U.S. Foreign Stock 

 Replace- Tuna Flag Increase 

 ment Fishing Tuna 



Deaths Fishing 

 Deaths 



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



NMFS has determined that at the commencement of 1977, the population 

 level of the white belly spinner will be at 76 percent of its initial size. Thus, 

 there is a substantial surplus stock of white belly spinners over that re- 

 quired to keep the stock above the lower bounds of O.S.P. The industry feels 

 that a portion of the surplus (9,165-19,309 animals) could be drawn on in 

 1977 by the international fleet. The impact of this proposed take would result 

 in the stock of white belly .spinners at the start of 1978 being 75 percent of 

 Initial size, as compared to 76 percent at the beginning of 1977. 



