Quote Originally Posted by Derby Tup View Post
...That fish looks like it's been in the river some time
I don't know much about the salmon that run up our rivers. I do know that when they leave the sea and head into fresh water they are bars of silver. After some time they start to darken but I don't know how long that process takes. The skin darkening might be to help the fish blend-in with their new environment or perhaps it's because they stop feeding once they've left the sea? The fish in the picture has similar markings to Brown Trout.