ESPM 114 Lecture Notes - Lecture 9: Atlantic Cod, Silage
22 Feb 2018
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Lecture 9 : harvest constant harvest rate quotas : 244 problems : don"t know n can"t obtain reliable msy can"t stop harvests when muesam , noncompliance , Atlantic cod : bust since b price. : political , bio econ must balance goals many objectives (deer hinting in wd. Density . dep growth limit to which people will tolerate diff in animals wrong use fixed - effort system : ensy. panderinvestment w f naaint harvest the commons : reprod. in bad catch fvl input yrs. Making a better model: not all same silage ( sex. Cohort : all indiv . born in 1 time interval until they die dynamic. Sectional : snapshot of current age structure state composite : combined approaches over multiple yrs. Known ( marked ) in dive carcasses (harvested. Ix = survivorship schedule ( ratio dive at age x (n /n . ) (arg. = vecmtity schedule probability life - expectancy caks harvesting site classes.
