Marine ecology Fisheries 6 Marine biology 6 Marine ecosystem management 6 Fishery management 5 Marine pollution 5 Climatic changes 4 Coastal ecology 4 Ecology 4 Oceanographic environment 4 Population ecology 4 Sustainable fisheries 4 Biotic communities 3 Ecosystems 3 Evolutionary ecology 3 Fishing 3 Geographical ecology 3 Marine biodiversity conservation 3 Marine plankton 3 Oceanography 3 Zoogeography 3 Aquacultural and Fisheries Economics, (New March 2000) 2 Aquatic Biology and Ecology 2 Biodiversity conservation 2 Biology 2 Coastal habitats 2 Community ecology 2 Continental shelf seabed 2 Coral reefs 2 Deep sea 2