Harvesting technology and catch-to-biomass dependence: The case of small pelagic fish
This note deals with a harvesting model for a single stock fishery. In the case of small pelagic fish it seems reasonable to consider harvest functions depending nonlinearly on fishing effort and on fish stock. Empirical evidence about these fish species suggests that marginal catch does not necessarily react in a linear way to changes in fishing effort and fish stock levels. This is in contradiction with traditional fishery models where catch-to-input marginal productivities are normally assumed to be constant. While allowing for non linearities in both catch-to-effort and catch-to-stock parameters, this note extends the traditional analysis by focusing on the dependence of the stationary solutions upon the nonlinear catch-to-biomass parameter. Given the emphasis on the case of small pelagic fish, the analysis considers positive but small values for the catch-to-stock parameter.
|Date of creation:||Dec 2009|
|Contact details of provider:|| Postal: Erasmo Escala 1835, 6500620 Santiago|
Phone: (562) 692-0265
Fax: (562) 692-0303
Web page: http://www.economia.uahurtado.cl/
More information through EDIRC
|Order Information:|| Email: |
References listed on IDEAS
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.:
- Julio Peña-Torres & Michael Basch & Sebastian Vergara, .
"El Dilema de la Escala Productiva frente a Ciclos de Abundancia: La Pesca Industrial en Chile,"
ILADES-Georgetown University Working Papers
inv142, Ilades-Georgetown University, Universidad Alberto Hurtado/School of Economics and Bussines.
- Peña-Torres, Julio & Vergara, Sebastián & Basch, Michael, 2004. "El dilema de la escala productiva frente a ciclos de abundancia. La pesca industrial en Chile," El Trimestre Económico, Fondo de Cultura Económica, vol. 0(283), pages 575-612, julio-sep.
When requesting a correction, please mention this item's handle: RePEc:ila:ilades:inv232. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Marcela Perticara)
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.