Optimum Fisheries Management under Climate Variability: Evidence from Artisanal Marine Fishing in Ghana

Sustainability

Wisdom Akpalu¹  Isaac Dasmani³  Ametefee K. Normanyo² 

[1] United Nations University—World Institute for Development Economics Research (UNU-WIDER), University of Ghana, P.O. Box LG 25, Legon-Accra, Ghana;Ho Polytechnic, P.O. Box 217, Ho, Ghana; E-Mail:;Economics Department , University of Cape Coast, University Post Office, Cape Coast, Ghana; E-Mail:

关键词: climate variability;    optimal tax;    generalized maximum entropy;    Ghana;   

DOI  :  10.3390/su7067942

来源: mdpi

【 摘 要 】

In most developing coastal countries, the artisanal fisheries sector is managed as a common pool resource. As a result, such fisheries are overcapitalized and overfished. In Ghana, in addition to anthropogenic factors, there is evidence of rising coastal temperature and its variance, which could impact the environmental carrying capacity of the fish stock. This study investigates the effect of climate variation on biophysical parameters and yields. Our results indicate that the rising temperature is decreasing the carrying capacity. As a result, an optimum tax on harvest must reflect climate variability, as well as the congestion externality.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.