Facts about Life Cycle of the Salmon

1. 06

   Female Chinook salmon can lay between 3,000 and 14,000 eggs in a single gravel nest called a redd.

   Life Cycle of the SalmonAug 29sharebiologyreproductionmeasurement
2. 05

   Spawning salmon stop feeding entirely once they enter freshwater rivers, relying solely on stored body fat and muscle to fuel their upstream journey.

   Life Cycle of the SalmonJun 6sharebiologymigrationphysiology
3. 04

   During the smoltification process, juvenile salmon undergo dramatic physiological changes that allow their bodies to transition from freshwater to saltwater living.

   Life Cycle of the SalmonJun 6sharebiologyphysiologyadaptation
4. 03

   The remarkable ability to navigate from the ocean back to their natal stream is guided by the salmon's highly sensitive sense of smell, which detects the unique chemical signature of their birthplace.

   Life Cycle of the SalmonJun 6sharebiologynavigationinstinct
5. 02

   Pacific salmon are semelparous, meaning they die shortly after spawning, and their decomposing bodies provide crucial nutrients to riverside ecosystems.

   Life Cycle of the SalmonJun 6sharebiologyecologyreproduction
6. 01

   After hatching from gravel-buried eggs, salmon pass through distinct stages called alevin, fry, parr, and smolt before reaching the ocean.

   Life Cycle of the SalmonJun 6sharebiologylifecyclefish