Pink salmon

Pink salmon, also known as humpback salmon, is a species of euryhaline ray-finned fish in the family Salmonidae. It is the smallest and most abundant of the seven officially recognized species of salmon.

In the ocean, pink salmon are bright silver fish. After returning to their spawning streams, their coloring changes to pale grey on the back with yellowish-white belly (although some turn an overall dull green color). As with all salmon, in addition to the dorsal fin, they also have an adipose fin. The fish is characterized by a white mouth with black gums, no teeth on the tongue, large oval-shaped black spots on the back, a v-shaped tail, and an anal fin with 13–17 soft rays. During their spawning migration, males develop a pronounced humped back. Pink salmon average 2.2 kg in weight. The maximum recorded size is 76 cm and 6.8 kg.

Main Photo Credit: 
"Pink salmon (Oncorhynchus gorbuscha), British Columbia, Canada" by Katherine Panfilova, 2025. CC BY-NC 2.0.

Description: Wikipedia