113 



26 



1 ported by the habitat within the historic range of a 



2 species or population stock prior to human-caused 



3 habitat degradation or enhancement, modified to 



4 take into account increases and decreases due to 



5 natural causes or human-caused effects which for all 



6 practical purposes are irreversible."; 



7 (3) by inserting the following new paragraph 



8 (10) and renumbering all other paragraphs 



9 accordingly — 



10 "(10) The term 'maximum net productivity 



11 level' means the population size, age, and gender 



12 composition at which the net annual increase in pop- 



13 ulation size resulting from additions to the popu- 



14 lations due to reproduction, less losses due to natu- 



15 ral mortality, is maximized."; 



16 (4) by inserting the following new paragraph 



17 (15) and renumbering all other paragraphs accord- 



18 ingly: 



19 "(15) The term 'potential biological removal' 



20 means the number of animals that may be removed 



21 from a marine mammal population stock without 



22 causing that stock to be reduced to, or to be main- 



23 tained for a significant period of time at, a level 



24 below its maximum net productivity level. Potential 



• HR 2760 IH 



