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either set harvesting quotas for all species or estab- 

 lish an interim moratorium on all harvesting. The 

 environmental impacts of this alternative are very 

 similar to those of the fourth alternative. 



The main potential adverse impact lies in setting 

 quotas too high for some species out of present igno- 

 rance of the abundance and population dynamics of some 

 stocks. If quotas were set too high, then overexploi- 

 tation and consequent adjustment of other populations 

 within the system would become possible. 



This alternative is a much more difficult one to 

 negotiate than the fourth because of the necessity of 

 either agreeing on a moratorium or establishing har- 

 vesting quotas. A moratorium would prevent the gathering 

 of some commercial data which could be useful in estab- 

 lishing eventual conservation measures. 



