Na Wang, Advocating Socially Responsible

Advocating Socially Responsible Management in fisheries
Na Wang & You-Gan Wang
Centre for Applications in Natural Resource Mathematics (CARM),
School of Mathematics and Physics, The University of Queensland, Australia
1
Introduction
5
Conclusion
When exploiting aquatic resources, we often
1. Optimal harvesting is appealing in fisheries
management.
need to consider,
• environmental sustainability
• economic profitability
• social benefits
2. Achievement of optimality depends on our
inference domain.
3. Appropriate gain functions can lead to better
optimal effort and hence make more efficient use
of our resource for the whole society.
The management objective of Australian
Commonwealth Fisheries is
“maximising net economic returns to the
4. The benefits of socially responsible management
to the broader society outweigh the economic
profit loss in the fishery industry.
community, within the context of ecological
sustainability.’’
5. MEYSRM is more suitable for deriving harvest
strategy.
2
Objective
3
Application to
Commonwealth fisheries
4
Result
MEYSRM > MEYECO
Figure 1 Revenue (solid lines) and cost (stippled
lines) as a function of fishing effort for the fishing
fleets (MEYECO, thin lines) and the whole economy
(MEYSRM, thick lines). MEYSRM is related to the whole
economy. MEYSRM has higher harvest and effort
levels than the traditional economic approach which
based on MEYECO, but still within the context of
sustainability.
References
Bromley, D.W. (2009) Abdicating responsibility: the deceits of fisheries policy. Fisheries 34, 280290.
Christensen, V. (2010) MEY = MSY. Fish and Fisheries 11, 105-110.
Wang, Y.G., and N. Wang. (2012) Implications of gain functions in fisheries management.
Reviews in Fisheries Science 20(2), 103-109.
Wang, N., Wang, Y.G., Courtney, A.J., and O'Neill, M.F. Deriving optimal fishing effort
for managing Australia’s Moreton Bay multiple-species fisheries with aggregated effort data.
submitted.