Fishes 240 Risk management 162 Vertebrates-- Cold-blooded vertebrates-- Pisces (Fishes)-- Cat fishes 154 Fisheries-- Fishing 140 Fish culture-- Aquaculture of fishes 74 Management 73 Fish physiology-- Physiology of fishes 72 Risk assessment 60 Fishes-diseases 51 Fish and shellfish processing 46 Freshwater fishes 46 History 46 Insurance 45 Fisheries 44 Fish culture in freshwater 41 Fish culture in aquariums 38 Fish culture 37 Risk management--Disaster management 37 Dissertations, Academic (Ph.D) 36 Risk 34 Economics 33 Mathematical models 33 Toxicology 33 Fish farming 32 Fishes Ichthyology 32 Mathematics 32 Philosophy 32 Fishing 31 Marine fishes 31 Fish 30