Aquatic Invasive Species: Spiny and Fishhook Water Fleas (Dec 2005) (PDF | 152 KB) Indiana Department of Natural Resources. Spiny waterflea is an invasive zooplankton (tiny organisms that travel by wind and water currents) that originated from Eurasia. Spiny Water Flea Confirmed in Lake George on New York State Dept. One major target species of Bythotrephes is Daphnia (another small water flea). Invasive Species (IS) Information ... commonly known as the spiny waterflea (Bythotrephes longimanus; formerly identified as Bythotrephes cederstroemi), ... consuming up to 20 prey zooplanktors per day. For more infomation or to report a sighting, call: 1-87-STOP-AIS-0 or 1(877)-867-2470. University of Minnesota. Spiny Water Flea Effects - an article on "The spread, … Sping Water Flea ISCM Fact Sheet Back to Aquatic Species List The spiny water flea (Bythotrephes cederstroemi) is not an insect but a crustacean with a long, barbed trail. Photo credit: J. Liebig, NOAA GLERL. Spiny Water Flea (Bythotrephes longimanus) description. The spiny water flea was found in the Great Sacandaga Lake (northern Fulton and Saratoga counties, in the Adirondacks) in 2008, Lake George in 2012 and Lake Champlain in 2014. “That’s a neat story. The spiny water flea (SWF) is a free swimming, cladoceran zooplankton with a unique body structure. Spiny (Bythotrephes longimanus) and fishhook (Cercopagis pengoi) waterfleas are small predacious crustaceans that threaten aquatic ecosystems and fishing by competing with native fish for food and fouling gear. of Environmental Conservation website.. Spiny Water Flea – Fact Sheet from the US Geological Survey Nonindigenous Aquatic Species website covers identification, nonindigenous occurrences, ecology, impact, and management of the species. Oneida Lake has a new invasive species to contend with – the spiny water flea. Well, that’s kinda cool. Hundreds of tiny spiny water flea, nearly invisible, sit on the surface of this water. First was evidence that the spiny waterflea was consuming the larvae of invasive Dreissenid mussels, commonly known as zebra mussels or quagga mussels. NPS/Paul Brown. Invasive Species - Spiny Water Flea. Its average length is only about one centimeter, but its long tail spine (70% of animal's total length) makes it easily distinguishable from other invertebrates and zooplankton. Resources. Minnesota Aquatic Invasive Species Research Center. Displaying 1 to 20 of 23 Search Help. There were two surprises. This invasive species outcompetes native species for food, which can have cascading impacts to the entire food web. Spiny Water Flea Resources. Below: Scale showing actual size of Spiny waterflea (bar represents 1 mm). The spiny water flea is feeding on zooplankton is at risk of eliminating zooplankton species, and as zooplankton is the backbone of aquatic food chains, the Spiny Water flea presents a serious risk to the ecosystem of the North United States and Canada. 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