Aquatic biology, organisms, plankton, freshwater biology 65 Aquatic Biology and Ecology 13 Aquatic biology 9 Ecosystems 5 Life sciences 5 Pollution and Degradation 5 Aquaculture (Animals) 4 Ecology 4 Environmental impact 4 Fishes 4 Freshwater & Marine Ecology 4 Life Sciences 4 Aquacultural and Fisheries Economics, (New March 2000) 3 Biological Resources (Animal) 3 Fish culture 3 Fisheries 3 Fishery management 3 Sustainability 3 Water Resources 3 AQUATIC BIOLOGY 2 Animal Genetics and Breeding, (New March 2000) 2 Animal Immunology, (New March 2000) 2 Animal ecology 2 Aquaculture 2 Aquatic animals 2 Aquatic environment 2 Biology 2 Eutrophication 2 Fish production 2 Habitats 2