'Fish gate' in the Bible

And the fish gate did the sons of Hassenaah build; they laid the beams thereof, and set up the doors thereof, the bolts thereof, and the bars thereof.

and above the gate of Ephraim, and by the old gate, and by the fish gate, and the tower of Hananel, and the tower of Hammeah, even unto the sheep gate: and they stood still in the gate of the guard.