Salmon

Sometimes lots....grin. Brim and crappies, I presume? Yulia, if the fish is that size and judging by its girth, it is a well-fed captive fish. If so, I'm guessing Coho. Chinooks that look like this would weigh 25-35 pounds--which would be a huge fish--but my ID is still a guess. You may simply want to label your sighting as "Family: Salmonidae", which implies that is as far as you can get it. Any other info, of course, in the making of a sighting is good and may help in the ID. I enjoy your sightings very much!

Sometimes lots....grin. Brim and crappies, I presume? Yulia, if the fish is that size and judging by its girth, it is a well-fed captive fish. If so, I'm guessing Coho. Chinooks that look like this would weigh 25-35 pounds--which would be a huge fish--but my ID is still a guess. You may simply want to label your sighting as "Family: Salmonidae", which implies that is as far as you can get it. Any other info, of course, in the making of a sighting is good and may help in the ID. I enjoy your sightings very much!

90% sure this is an Atlantic Salmon (Salmon salar).

How many naturalists does it take...

My husband is a fish guy - he agrees with the id of some kind of salmon

I guarantee your closer than I am Gordon. I'm more of a Lepomis and Pomoxis angler

Yulia. One thing that might help is a bit of a written description. Is this fish much larger than 10 pounds?

Ah Mitch, I've failed you....grin.

Several of the photos you've posted in the last few minutes are the family Salmonidae, but they are sometimes difficult to separate into species without seeing colors and other features better. For instance, some salmon have black gums and others don't. Some have spots on the fins and some don't. Salmonidae also include trout. This fish is probably either a sockeye or a chinook, but I can't tell from the photo.

some kind of trout perhaps? This sounds like a job for Gordon Dietzman.