Table 2 Categories and variables created based on local ecological knowledge of fishers

Behavioral aspects

Lives in shoals (species of fish that usually live in the water column in groups with individuals of the same or another species), solitary (species of fish that do not live in aggregate form), migratory (species of fish that perform migratory movements) and resident (species of fish generally demersal, considered not making migratory movements)

Habitat types

River, lake, beach (sand banks formed in the period when river levels are lowest in the Amazon), stream, flooded forest (igapó), floodplain, aquatic vegetation, river bank

Food aspects

Periphyton (slime), fish, plant material (fruits, flowers, leaves, vegetable debris and grass), worm (Oligochaeta), detritus (sand, mud, clay and water), insects (spiders and mosquitoes larvae (Diptera)), non-plant prganic material (decaying animal remains, blood, eggs from other fish), shrimp (Decapoda), crab (Decapoda), snails (Gastropoda)

Breeding season of species

Rising (April to June), full (July to August), ebb (September to November) and dry (December to March)