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diet have a greater relative importance of the total ingested items. These items possibly represent prey species that are abundant in the region during some periods,
since the richness of teleost, crustaceans and cephalopods available for consumption is almost twice as much as the number of species ingested by the Guiana dolFig. 2.13 An interspecific interaction among Guiana dolphin and several species of seabirds is frequently observed at Cananéia estuary. At this picture is possible to see a large group of brown boobies
(Sula leucogaster) foraging in association with a Guiana dolphin group (Photo: Caio N. Louzada)
Fig. 2.14 At Cananéia estuary, Guiana dolphins have a positive interaction with artisanal fishermen. At the estuarine waters, fixed fishing traps are built, which benefit dolphins foraging due to a
limitation of escape routes for shoals during foraging. Groups of Guiana dolphins are found frequently using these traps during fishing activities (Photo: Caio N. Louzada)
2 Long-Term Monitoring of Dolphins in a Large Estuarine System of Southeastern…
diet have a greater relative importance of the total ingested items. These items possibly represent prey species that are abundant in the region during some periods,
since the richness of teleost, crustaceans and cephalopods available for consumption is almost twice as much as the number of species ingested by the Guiana dolFig. 2.13 An interspecific interaction among Guiana dolphin and several species of seabirds is frequently observed at Cananéia estuary. At this picture is possible to see a large group of brown boobies
(Sula leucogaster) foraging in association with a Guiana dolphin group (Photo: Caio N. Louzada)
Fig. 2.14 At Cananéia estuary, Guiana dolphins have a positive interaction with artisanal fishermen. At the estuarine waters, fixed fishing traps are built, which benefit dolphins foraging due to a
limitation of escape routes for shoals during foraging. Groups of Guiana dolphins are found frequently using these traps during fishing activities (Photo: Caio N. Louzada)
2 Long-Term Monitoring of Dolphins in a Large Estuarine System of Southeastern…