Question B $[12$ points$]$

By applying the "algebraic analysis of fishery equilibria" and assuming: $a=0\mathrm{.}40$;$\frac{a}{k}=0\mathrm{.}045$; and $p=c=$$$2$

Stock $=x$

Effort $=E$

Stock growth is given by $F(x)=ax-(\frac{a}{k})x^2$

And, harvest or catch $H=$qEx

Where q is the catchability coefficient

$F(x)=0$ when $x=$

$F(x)>0$ when $$

Solve for the "economic optimum" and "open access" equilibrium values for $E,H,$ and X