Aquaculture Fishery management 4 Aquacultuur 2 Aquatic biology 2 Fishes 2 Gestion des pe^ches 2 Hydrobiologie 2 Hydrobiology 2 Publications pe ́riodiques 2 Aquacultural engineering 1 Aquakultur 1 Aquatic animals 1 Aquatic resources 1 Biologie 1 Catfishes 1 Ecologie 1 Ecology 1 Economic aspects 1 Feeding and feeds 1 Fische 1 Fischwirtschaft 1 Fish Diseases 1 Fish culture 1 Fisheries and Aquaculture 1 Fishery resources 1 Food 1 Gestion 1 Limnology 1 Marine biology 1 Mensuels 1