- Jun 30, 2020
It's interesting for sure. I think it is very likely caused by the leader though. The fish turns quickly, the leader gets caught under the fin (dorsal, pelvic, anal) and the pull from the angler drags the fish round, or the fish lunges away, which causes the marks. I don't think it would have to roll up in the leader for it to happen, just a partial wrap if you will, the leader rubs some scales off, and the marks are the result...I would have remembered if it had managed to do any wrapping at any stage.
I reckon if we start looking for this damage regularly we'll notice it is sometimes only on one side or the other, which would eliminate any predator or net damage to my mind.
So let's look for the marks and snap both flanks of the fish on afflicted examples.
I have found lots of photos of fish with similar marks. If you look closely most do to some extent, it seems...