Researchers have confirmed the presence of fishhook waterflea (Cercopagis pengoi) in Lake Champlain, bringing the known number of nonnative and aquatic invasive species in Lake Champlain to 51.
The discovery increases the likelihood of the invasive’s spread by recreationists into the Adirondack Park, which currently has at least 12 known aquatic invasive species in interior lakes where spiny waterflea has been spreading.
The fishhook waterflea is similar to the spiny waterflea, which was confirmed in Lake Champlain in 2014; they are both small crustaceans that are aggressive predators of zooplankton and are known to foul fishing lines. The Finger Lakes and Lake Ontario were the closest lakes known to host fishhook waterflea. Like the spiny waterflea, the fishhook waterflea likely arrived in Lake Champlain by hitchhiking over land on recreational boats, trailers, or equipment. » Continue Reading.