noun. A young fish, especially one less than a year old and about the size of a human finger.

noun. Any of various types of potato bearing small fingerlike tubers.

noun. A finger of a glove.

noun. Some small thing no bigger than a finger; specifically, a very small salmon or a small trout.

noun. A young salmon. See parr.

noun. A young salmon or trout.

noun. A type of small potato grown primarily in North America.

noun. a young or small fish

"The Conrad Brothers caught a fish that was living in a natural system for over 9 years, probably released as a fingerling."

fish  

parr