Environmental Impact on the Araguaya River

The Araguaya and Tokantins rivers, located on the eastern edge of the Amazon, are vital for biodiversity and ecosystem balance. However, they face threats from dam construction and deforestation, which have led to reduced fish populations and environmental degradation. Fish farming is emerging as an industry, but it poses risks with the introduction of foreign species. Deforestation has drastically altered the riverbanks, causing erosion and changes in water levels. Tourism, particularly fishing, offers a sustainable way to preserve these rivers while promoting economic development.

What is the geographical location of the Araguaya and Tokantins River Basin?

• Western edge of the Amazon

• Eastern edge of the Amazon

• Southern edge of the Amazon

• Northern edge of the Amazon

What are the two main environmental threats to the Araguaya and Tokantins River Basin?

• Overfishing and pollution

• Dam construction and deforestation

• Urbanization and mining

• Drought and climate change

How has the construction of hydroelectric dams affected the local fish population?

• Decreased fish population

• Fish population remained stable

• No impact on fish population

• Increased fish population

What is a potential concern associated with the introduction of foreign species for fish farming?

• Decreased water pollution

• Disruption of local ecosystems

• Improved fish quality

• Increased biodiversity

What has been the impact of deforestation on the river's physical characteristics?

• River has become narrower

• River has become wider and shallower

• River has become deeper

• River has remained unchanged

What happens to the riverbanks during the dry season due to deforestation?

• Banks become more stable

• Banks collapse and create ravines

• Banks expand

• Banks remain unchanged

How has the appearance of beaches along the Araguaya River changed over time?

• Beaches have become smaller

• Beaches have disappeared

• Beaches have remained the same

• New beaches appear every year

What is the primary attraction for tourists visiting the Araguaya River?

• Mountain hiking

• Large variety of fish species

• Cultural festivals

• Historical landmarks

What type of tourism is considered sustainable for the Araguaya and Tokantins River Basin?

• Adventure tourism

• Mass tourism

• Luxury tourism

• Catch and release fishing

How can tourism help in the preservation of the Araguaya and Tokantins River Basin?

• By increasing deforestation

• By encouraging urban development

• By promoting catch and release fishing

• By supporting mining activities