APPENDIX I 

 GLOSSARY OF TERMS 



Acceptable biological catch (ABC) : 



seasonally determined catch that may differ 

 from MSY for biological reasons. It may be 

 lower or higher than MSY in some years for 

 species with fluctuating recruitment, It may 

 be set lower than MSY in order to rebuild 

 overfished stocks, (North Pacific Council, 

 1978 DEIS/FMP Groundfish Fishery in the' 

 Bering Sea/Aleutian Island Area, p. 5) 



Carrying capacity: 



population size at which death rate is balanced 

 by recruitment (for an undisturbed population) ; 

 initial size of a renewable resource population 

 before exploitation by man. (Holt and Talbot, 

 1971, p. 22.) 



upper asymptote of the sigmoid growth curve 

 (simple logistic model) ; where N = population 

 size number; r = intrinsic rate of increase; 

 k = carrying capacity; t = time then 



*|- rN(l - N/k) (Qdum) 19yl( p( 183) 



Conservation : 



wise use, including keeping for future use. 

 (Holt and Talbot, 1978, p. 7) 



(1) insuring the preservation of a quality 

 environment that considers esthetic and 

 recreational as well as product needs , and 



(2) insuring a continuous yield of useful 

 plants, animals, and materials by establishing 

 a balanced cycle of harvest and renewal. 

 (Odum, 1971, p. 408) 



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