• Atlantic salmon are about 2 1/2 feet long and weigh a hefty 10 pounds.

• Salmon are born in rivers. They swim to the ocean, where they live most of their lives.

• Only a small number of salmon reach the ocean after they are born. The few that make it can live for up to seven years.

• In order to spawn, or reproduce, salmon swim upstream back to the place they were born.

• Salmon may swim upstream as far as 2,000 miles. The journey may take many months.

• Salmon eat shrimp, squid, and other small fish.

• Logging in watersheds

• Chemicals from farms

• Introduction of non-native salmon that escape from pens and breed with wild salmon

• Acid rain