 |
Activity
D: relating catch and effort
Resources
Suggested
answers
| 1 |
Conservation.
|
| 2 |
The
effort corresponding to MEY offers the greatest level
of profit because at this point (E4) marginal revenue
equals marginal cost. If effort is increased, the additional
revenue is less than the additional cost (MR>MC).
Conversely, if effort is decreased, the cost savings
are less than the revenue foregone (MC<MR). Thus
at MEY, the difference between the value of the catch
(TR) and the cost of harvesting (TC) is maximised.
Graph 3a
|
| 3 |
|
a |
Fishers
make more profit, (R2 - C) > (R1 - C), but effort
and catch do not necessarily increase (EMEY1= EMEY2). |
|
b |
Fishers
cut back on effort (EMEY2 < EMEY1) and their
catch decreases and profits decline (R1 - C1) >
(R2 - C2). |
|
| 4 |
The
advantage of the QMS for commercial fishers is that they
decide when and how (within limitations) they can catch
their ACE. Their share is guaranteed, so they can confidently
invest in boat, gear and technology. As they are not competing
with others for fish, they can invest in selective catching
methods and value-added processes, rather than in technology
to catch fish faster than other fishers. |
| 5 |
A
competitive TACC means fishers compete against each other
and some fishers probably do well out of this system.
However, it leads to a technology race to build bigger
and better boats, which are used only until the fishery
is closed for the year. |
| 6 |
The
QMS and a competitive TACC both conserve fish, but the
QMS is more efficient in terms of capital investment and
employment.
Graph 3b |
|
