SAVING THE SALMON

The video discusses the lifecycle and challenges faced by salmon in the Qualicum River. It highlights the low survival rate of salmon eggs due to unpredictable water flow and timber felling. Efforts to improve survival include building a barrage system and monitoring fish movements. Temperature control is crucial, achieved by drawing water from a lake to cool the river. A new, pollution-free river has been created to enhance salmon survival, with expectations of financial returns from increased survival rates.

What is one of the main reasons only 10% of salmon eggs mature?

• Predation by larger fish

• Overfishing

• Unpredictable water flow

• Lack of food resources

How much money has been spent on controlling the flow and diverting polluted streams?

• Two million dollars

• Half a million dollars

• One and a quarter million dollars

• One million dollars

What remains a mystery about salmon despite technological advancements?

• How they return to their spawning stream

• How they avoid predators

• How they find food in the ocean

• How they communicate with each other

What method is used to cool down the river for salmon survival?

• Adding ice blocks

• Using fans

• Drawing water from a lake at varying levels

• Shading the river with trees

By how many degrees can the river temperature be lowered using the new system?

• Nine degrees

• Seven degrees

• Eleven degrees

• Five degrees