do watersheds hold fish?

Answer 1

A watershed is not a river or creek. It is a land area which has water courses, all draining in the same direction. Streams may, or may not be large enough to support fish.

Answer 2

Answer above mine is correct. Also, some of my students always think that a watershed is a building (a shed) which it definitely is not. A watershed is a land area that drains into a particular stream, lake, or other body of water. Think of a raindrop falling on the land and draining off into a stream. That raindrop fell in the watershed. What if I spill a chemical in my driveway? What body of water will that chemical eventually reach? My driveway is in that body of water's watershed.