Talk:trout

I heard that trout is invariable in plural. "Trout are ..."

Either or. "Today, the trout is pan-fried in butter." referring to all the trout (plural) being served as a collective. So we have plural trout or trouts, the latter used when referring to multiple species or the like: "there are 4 trouts in the river system", so not very common. Robert Ullmann 12:27, 18 September 2008 (UTC)

The first sentence you give may be plural in sense, but is cleary singular in form, as shown by the verb form: the trout is. However, the unchanged plural is the most common in sentence 2 as well: There are four trout in river. The plural "trouts" is possible, but less common. So the word "trout" has two plurals: unchanged "trout" (more common), or "trouts" (less common)