{Tidal Potomac Fly Rodders} Catching invasive species...

General question I've been thinking about--and I'm sure we'll get some strongly differing opinions--but when you are fishing local waters, do you ever remove fish you happen to catch that are recent transplants and might be harmful to the current established species?  I'm trying to be careful with my words here, because yes I know that LMB and SMB are not native to here, and I'm not trying to start up that debate.

So snakeheads we are obviously encouraged to remove from the watershed.  Was reading an old post on 4MR and saw the giant nile tilapia someone pulled up.  Is that a species that is making a move into the potomac?  As conscientious sportsmen, should we be thinking twice about throwing them back?  What about blue cats as opposed to channels?

Been thinking about this recently and thought there was an interesting conversation there.

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