Sustainability Evaluation for Shellfish Production in Gamak Bay based on the Systems Ecology

This research outlines a method for sustainability evaluation for shellfish aquacultureproduction in Gamak Bay for based on Emergy evaluation of the environmental resources.For a better understanding of environmental factor influencing oyster production and themanagement of oyster stocks, it is important to understand and assess the real value ofenvironmental sources such as solar energy, river, tide, wave, wind, etc. In this research,EMERGY(Odum, 1996; Ulgiati and Brown, 2007) flows from environment were 76% forshellfish aquaculture in Gamak Bay. EMERGY yield ratio, Environmental Loading Ratio,and Sustainability Index (Brown and Ulgiati, 1997; Tilley and Vito, 2006) are 4.2, 0.3, 13.8respectively.