I know some of you have heard already, but NJDEP alerted us to a recent discovery of New Zealand Mudsnail in the South Branch Raritan in the Califon area. This webpage has some good info about them:
New Zealand mudsnail (Potamopyrgus antipodarum) - Species Profile
These snails have the capacity to be highly invasive in certain freshwater environments due to their high survival rates and high birth rates. They like silty and muddy areas of shorelines, but are generalists. Iām hoping the Raritan fish develop a taste for them, but please do be cognizant of this species. Check your boots/waders/gear for tiny snails (and any debris) and pluck them off before moving among water bodies. Let us know if you think you see any (take a pic). Email henrybayard@gmail.com