Optimal Harvesting of Age-structured Fish Populations
AbstractA generic age-structured model for optimal harvesting is formulated and analyzed. The aim is to maximize utility from the harvest, net of effort cost. Yield depends on effort, catchability, and population age structure. The recruitment function is nonlinear. The age-structured model can be viewed as a generalization of the biomass approach. Comparison with the biomass model shows that the age-structured information influences the optimal steady-state population and harvest and the qualitative features of optimal transition. Pulse fishing or interior limit cycles are possible, but the optimal solution may represent a smooth, sustainable harvest even when the model is linear in effort. Linearity assumptions do not guarantee the optimality of constant escapement. If the age distribution is dominated by young age classes, the optimal yield may be lower with higher biomass. With knife-edge selectivity, the optimal steady state may become independent of the interest rate.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
Bibliographic InfoArticle provided by Marine Resources Foundation in its journal Marine Resource Economics.
Volume (Year): 24 (2009)
Issue (Month): 2 ()
Contact details of provider:
Web page: http://www.uri.edu/cels/enre/mre/mre.htm
Fisheries; bioeconomics; optimal harvesting; age-structured models; pulse fishing; Beverton-Holt population model; endogenous recruitment.; Environmental Economics and Policy; Production Economics; Public Economics; Research Methods/ Statistical Methods; Q22; Q57; C61;
Find related papers by JEL classification:
- Q22 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Fishery
- Q57 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Ecological Economics
- C61 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Optimization Techniques; Programming Models; Dynamic Analysis
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Townsend, Ralph E., 1986. "A critique of models of the American lobster fishery," Journal of Environmental Economics and Management, Elsevier, vol. 13(3), pages 277-291, September.
- Reed, William J., 1979. "Optimal escapement levels in stochastic and deterministic harvesting models," Journal of Environmental Economics and Management, Elsevier, vol. 6(4), pages 350-363, December.
- Wilen, James E., 1985. "Bioeconomics of renewable resource use," Handbook of Natural Resource and Energy Economics, in: A. V. Kneese† & J. L. Sweeney (ed.), Handbook of Natural Resource and Energy Economics, edition 1, volume 1, chapter 2, pages 61-124 Elsevier.
- Rognvaldur Hannesson, 1975. "Fishery Dynamics: A North Atlantic Cod Fishery," Canadian Journal of Economics, Canadian Economics Association, vol. 8(2), pages 151-73, May.
- Wilen, James E., 2000. "Renewable Resource Economists and Policy: What Differences Have We Made?," Journal of Environmental Economics and Management, Elsevier, vol. 39(3), pages 306-327, May.
- Bjorndal, Trond & Brasao, Ana, 2006. "The East Atlantic Bluefin Tuna Fisheries: Stock Collapse or Recovery?," Marine Resource Economics, Marine Resources Foundation, vol. 21(2).
- Kennedy, John O.S., 1992. "Optimal Annual Changes in Harvests from Multicohort Fish Stocks: The Case of Western Mackerel," Marine Resource Economics, Marine Resources Foundation, vol. 7(3).
- Clark, Colin W, 1973. "Profit Maximization and the Extinction of Animal Species," Journal of Political Economy, University of Chicago Press, vol. 81(4), pages 950-61, July-Aug..
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (AgEcon Search).
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.