597 alabama amazonriver amazonriverregion amphibians amériquedunord asia atlases behavior biodiversity canada congresses conservation delaware distributiongéographique ecology ecosystems effectofhabitatmodificationon effectofhumanbeingson endangeredspecies equipmentandsupplies ethnoarchaeology europe fish fishculture fisheries fisherymanagement fisheryresources fishes fishing fishpopulations freshwaterbiology freshwaterecology freshwaterfishesidentificationcanada freshwaterfishesidentificationunitedstates freshwaters geographicaldistribution guiana history identification juvenileliterature madagascar mammals maryland minnesota mississippirivervalley mobileriverwatershed nature newzealand northamerica northcarolina northwest orinocoriver(venezuelaandcolombia) orinocorivervalley(venezuelaandcolombia) pacific pictorialworks piranhas poissons poissonsd'eaudouce predatoryanimals predatoryaquaticanimals rarefishes reptiles southcarolina texas traditionalfishing unitedstates virginia états-unis