fully realized. The freshwater aquaculture which began as small scale activity of stocking ponds with fish seed collected …

The aim of the study was to investigate as to whether piezoelectric energy harvesting could be a viable contributor to …

transport cost than leads to both overharvesting and under-harvesting in some regions. Due to these externalities market … of this paper is to study the role of market structure for the sustainable harvesting of natural resources. This work is …. Contrary to the previous works, this uses also reproduction equation for renewable resources. The intensity of harvesting …

Harvesting of prey biomass is analyzed in an integrated ecological-economic system whose submodels, a predator … the ecosystem responds to harvesting - through the reactions of optimizing individual organisms - by changing the … provision of public ecosystem services to consumers. General analytical results are derived regarding the impact of harvesting …