fishable

[ fish-uh-buh l ]

/ ˈfɪʃ ə bəl /

that may be fished in: nonpolluted, fishable streams.

lawful to be fished in: a lake that is fishable only with a permit.

Origin of fishable

First recorded in 1605–15; fish + -able

fish·a·bil·i·ty, noun un·fish·a·ble, adjective

But who cleans lakes and streams and rivers and makes them fishable and swimmable again?

Democrats Are Petrified of Defending Government—but They Need to Start |Michael Tomasky |December 4, 2014 |DAILY BEAST
The fishable water is on either side in an average height of river.

Lines in Pleasant Places |William Senior
Never stop casting so long as you are on fishable ground, for you know not the moment a good fish may rise.

Scotch Loch-Fishing |AKA Black Palmer, William Senior
If I know aught of Highland spates, they will both be down in the hour and fishable.

From Edinburgh to India & Burmah |William G. Burn Murdoch