sjieueuT noA-^e:KamHU xoaniicTBeHHOMy 

 pery^HpoBaiiHio. Ilpmtep: ^co6h 

 naJiTyca BcTpeHawmiieca baojib 

 deperoB MepHKH oTJTHMaioTCfl 

 OT ocoCeid siHBymHX b BOflax 

 mcHee MHca Cnencep. ycneiUHoe 

 peryJiHposaHHe npouucJia ocho- 

 BaHO Ha 3TOM reorpa^JHHecKOM 



paSJIHHHH. PHMCK.KOHCb. 



ocTyapHH 

 3C-o6pa3HaH KpHsan 



3XOJIOT 



nianagement r.nit 



Exarple - Hippogrlossus stenole pis- 

 members of this sjecles along the 

 American coast are distinct from 

 the stocks to the south of (Jape 

 Spenc;r» Successful management 

 regulcitions are based on this geo- 

 graphical division. (Rome Conf.) 



estuary 

 sigmoid curve 

 echo soiinder 



KKOJia 



1} 



dried fish 



H 



H3b /pHfia/ 



HpKHtt /b BUpaSCeHHH ViUCJlVl 



viJivi JKejiaHHfl/ 



fITOBb 



dace, shiner, Leuciscus idus, Europe 

 emphatic 



^^Iintering ground of sturgeons 

 (Caspian Sea) 



129 



10207* 



