ESPM-EEP%202010%20Lecture%2010 - ESPM 104/EEP 115 Fall...

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Unformatted text preview: ESPM 104/EEP 115 Fall 2010: Lecture 10 1. Proportional harvesting of biomass growth model using effort variable v≥0: dx = f ( x ) − qvx dt where catchability coefficient q>0 is set to 1 through an appropriate choice of units for v. ˆ 2. Under proportional harvesting v = v results in ˆ ˆ ˆˆ corresponding equilibrium solution x ⇐ f ( x ) − vx = 0 . In this case the sustainable yield is T 1 ˆ ˆˆ ˆˆ Y = lim ∫ vxdt = vx T →∞ T 0 3. Read: a. See Case 2000, p. 232 ­242. b. See Part II Harvesting Theory Notes. c. Also see C.W. Clark 1976, 1985, and 2006 (The Worldwide Crisis in Fisheries, Cambridge University Press). ...
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This note was uploaded on 02/09/2011 for the course EEP 115 taught by Professor Waynem.getz during the Fall '10 term at Berkeley.

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