Aquatic Nuisance Species
a.k.a. Aquatic Exotics
What are exotic species?
Exotic species are plants and animals released either accidentally or intentionally
into areas where they are not native. Such introductions usually occur through human
activities. Aquatic exotics are species that thrive in bodies of water-in lakes, ponds,
streams, rivers and wetlands. Removing a species from its native environment frees it from
natural predators, parasites, pathogens and competitors that limit its numbers. Therefore,
an exotic species is often capable of explosive population growth. Examples of exotic
species in Lake George include Eurasian Watermilfoil and the
Zebra Mussel. A recent and serious
threat is the Alewife, an invasive species of fish,
that has been found in Lake Champlain.
Be on the lookout for Alewife (bottom part of the
above picture).
Checklist Against Aquatic Exotics:
There are some important things you can do to help prevent the spread of
aquatic exotic species in Lake George.
- Do not transport water, animals or plants from another lake, river or any other
body of water to Lake George
- Drain your wells, bilge water and transom wells before leaving the access area.
Dont let this water wash into the lake!
- Remove plants and animals from your boat, trailer and accessory equipment
(anchors, centerboards, trailer hitch, wheels, rollers, cables, axles and
fishing and
scuba gear) before leaving the water access area
- Empty your bait bucket on land, never into Lake George. Never dip your bait or
minnow bucket with water from another body of water into Lake George.
- Never dump live fish from another body of water into Lake George.
- Wash your boat, tackle, downriggers and trailer with hot water when you get home.
Flush water through your motors cooling system and other boat parts that normally
get wet. If possible, let everything dry for three days (both hot water and drying will
kill zebra mussel larvae).
- Learn what these organisms look like. Dont purchase exotic species as bait
or for ornamental plantings.
- Take suspicious specimens to the Darrin Fresh Water Institute in Bolton Landing
for examination and identification.
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