Most shrimp served these days are not wild caught, but are raised in massive shrimp farms. This seems like a good idea. But aquiculture, in the past looked upon as only positive, has negative effects beyond what you would think ,especially it is not regulated. In Southeast Asia shrimp farming is rapidly destroying mangrove forests, which provide nurseries for marine life and protection along the shore from rapid erosion. A link to a report is HERE. The attached overlay shows one of the shrimp farming regions.