Will breach its dorsal like a shark?

 

Fishing a pond the other day and just in between 2 lengthy patches of weeds there was a clearing for about 30 yards about 15-20ft across. Right by the weeds I spy a good size fin pop up and disappear, I think 10ftish depth.

 

Also, on a lake in ME at night I hear these small splashes sometimes, and when i hear it I hear a hundred all around. Not rapidly, but it keeps happening. I know there's bass, lake trout, landlocked salmon,and then the typical littler fish.

 

Being night I can never see it, and by the time I light where I heard it that 2ft area is empty. I'd say about 7-15 ft depth very clear water.

 

What fish behave these ways?

Any fish could do those things 

I'd say either common carp or gar if they are in your lake. I usually don't see them in huge groups but I have seen groups of 3-4 fish swim at the surface. I could be wrong considering you hear 'hundreds', that part is throwing me off a little

12 minutes ago, Finessegenics said:

I'd say either common carp

Definitely carp.  I've seen it multiple times this season in shallow, weedy areas.  Initially I hear it and hope its a bass, but I keep hearing it and then finally get a visual and the brown, large scaled sucker mouths reveal themselves.

32 minutes ago, TnRiver46 said:

Any fish could do those things 

 

In shallow water I sight fish year round. I'm looking for movement under the surface as well as above. I'll see grass, pads, reeds move when there's no wind.

 

Yes I even see fins & tails!

 

I just saw a catfish do this.

Grass carp do that all the time around here.

Big grass carp will swim around with dorsal fin above the water. They'll also do it in packs some times, which definitely makes them look like sharks. Very cool.