brook trout
Refers to the fish Salvelinus fontinalis, a freshwater salmonid.
The brook trout is a beautiful fish native to North America.
この川ではカワマスが釣れます。
You can catch brook trout in this river.
Standard katakana spelling for this fish name.
Kanji spelling is rare; the word is usually written in kana.
Compound of 川 (kawa, 'river') and 鱒 (masu, 'trout'), literally 'river trout'.