Sea trout (which is actually a form seagoing brown trout) migrate from the sea into rivers to breed in the same way as salmon, but unlike salmon, they don’t die when they have spawned. 75% of sea trout return to the sea after spawning. They are, as you say, caught at sea or in estuaries, mostly at night as they are difficult to find in the daytime, but they are caught in spate rivers also. Some of the Welsh estuaries, and one in Sussex, produce excellent sea trout.
If I had to choose.....just one day
Brussels police ordered to attend a right wing conference attended by Braverman and Farage