An ecological-economic model for catchment management: The case of Tonameca, Oaxaca, México
Coastal environmental impacts are generally due to both local and remote land uses. Eutrophication of coastal waters, for example, may be due to local urbanization and tourist development, but typically also stems from nutrient flows from agriculture away from coastal areas. To deal with this problem, catchment and coastal management need to be integrated. Management recommendations need to be supported by integrated analysis linking the geographically dispersed drivers of change from an appropriately interdisciplinary perspective. This paper presents an ecological-economic model that embeds existing food web models within fishery and tourism production functions. The aim is to identify optimal management strategies for catchments in which changes in nutrient loads have consequences for the relative abundance of economically important species. The model is calibrated on data for the Tonameca catchment, located on the coast of Oaxaca in Mexico.
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