There was a quote in the Everett Herald from the WDWF guy up in the Everett area when there was tons of humpies around humpie hollow this year(blanking on his name for some reason, he is allways being quoted). They were catching some people taking two of their 4 allowed humpies and then moving into the next area and picking up 2 coho. It was specifically stated that you could not do that because the area had a maximum 2 fish limit, but you could do the reverse, catch your two Coho, then go to the next area to catch your 2 humpies to finish with an allowed 4 fish. This is a commom question in marine waters because of different limits so close to one another. There is no way you could enforce this differently just because its rivers. For another example, at Bouy 10 this year they went to a 3 fish limit in the river, but continued the 2 fish limit in the ocean. The enforcement was that you had to make sure to catch your last fish in the river on the way back, not the other way around.