The environmental quality of the coastal area is a parameter that should be known to establish management actions to assure constant environmental health of coastal ecosystems.

The properties of the large ecosystems: ocean and land, whose interface is the coastal area and their different environments of influence (mangroves, plains, coastal lagoons, coastal oases, among others), which can contribute up to 25% of the global biological production and sustain up to 90% of the fisheries, should be safeguarded and integrated in the development plans in favor of public welfare, because of the importance they represent.

The methods for measuring coastal environmental quality are efficient tools to determine, monitor, and establish the trend of environmental quality to be ready to define management or correction strategies in real time. This idea extends also to productive processes such as aquaculture, while their surpluses are thrown away to the coastal area. The farming systems can be monitored to know the variability of their quality and their effects in the coastal area.

This research applies an algorithm developed at CIBNOR (ICAC [its acronym in Spanish for Coastal Environmental Quality Index] in different environments of the coastal area, with and without influence of human activity, and tries to observe the tendency as productive activities increase.