Not long unless they are freshwater sharks
um ... what river?
YES! Bull sharks mainly stay in brackish waters. They have the ability to swim up the river. Bull sharks have been found at the end of the Mississippi river in the Northern Part of America.
YES THE GANGES RIVER HAS SHARKS AND DOLPHINS...............................................
Bull sharks are most commonly found in the Brisbane River.
yes sharks such as the woebegone and bull can live in rivers and lakes most of the sharks that live in rivers and lakes still stay close to the ocean for if it gets to cold these sharks are called fresh water sharks the woebegone like rivers because the bottom of the river is there skin tone the bull likes rivers because it mostly has more fish coming in and out of the ocean and that's your answer
Sharks can ONLY breath underwater. They're not mammals like us.
No. The only sharks that can live in fresh water are bull sharks, and it's too cold for them live in the Canadian river.
Yes. There have been bull sharks that swam up as much as 1750 miles up the tennessee river from the mississippi river.
No. There are no sharks in Lake George. Do not believe the urban legends about bull sharks swimming up the river. There have been no shark attacks in the Hudson River either.
No......
Yes, there are bull sharks in Crystal River. We've caught a few in the river, more so near Shell Island
No. Sharks live in the ocean, not the river.