_____ is a primary activity along rivers and lakes and in coastal areas.
Marine fisheries, as well as fisheries in large lakes, depend on the coastal region in a variety of ways. Most capture fisheries are base on coastal stocks; others develop offshore stock which spends part of their life in inshore waters, e.g., in a nursery school or feed area.
Fish stocks also rely on the main efficiency in the coastal area as an important part of the food chain. Coastal aquaculture is also greatly charged on the coastal area for liberty and wealth.
This dependence of the marine fisheries segment on the coastal area makes it mainly at risk to activities which result in coastal environmental change which may have major impacts on the sector. At the same time, the fisheries sector can affect other coastal activities.
Thus, the correct option is A.