Is salmon a singular noun or plural noun?

"Salmon" can be both singular and plural, depending on the context:

* Singular: When referring to one individual salmon, it's singular. For example: "I caught a salmon yesterday."

* Plural: When referring to more than one salmon, it's plural. For example: "There were many salmon swimming in the river."

Note: The word "salmon" is one of the few English words that has the same form for singular and plural.