Invasive Species Program
Programs L2 Landing Page
More than 6,500 nonindigenous species are now established in the United States, posing risks to native plants, animals, microorganisms, valued ecosystems, and human and wildlife health. In fact, the current annual environmental, economic, and health-related costs of invasive species exceed those of all other natural disasters combined.
Invasive fish cause significant economic losses and diminish opportunities for beneficial
uses of valued aquatic resources. Costly effects include harm to fisheries (e.g., Asian carp, snakeheads, whirling disease, and hemorrhagic septicemia). USGS research is focused on invasive fish spread and distribution, genetic and population impacts of invasives, hybridization between native and non...
Today's natural resource managers must make effective decisions about broad-scale ecosystem processes occurring across the landscape, with complex interactions, numerous competing stakeholder demands, and highly uncertain outcomes. USGS scientists are applying tools from decision science such as structured decision making, adaptive management, and modeling that examines the outcome of a...
The USGS Brown Treesnake Rapid Response Team was established to help prevent the spread of invasive Brown Treesnakes through screening, risk assessment, outreach, and training for field response efforts.
The USGS provides science for Department of the Interior bureaus and other decision makers with vital information that they need to fulfill their mission. The diversity of USGS scientific expertise enables the bureau to carry out large-scale, multi-disciplinary investigations and provide impartial scientific information to resource managers and planners. Scientific coordination and...
Tracking the establishment and spread of existing and new invasive species is critical to effectively manage invasive species. In addition to standard means of monitoring, the USGS is developing new tools, particularly molecular techniques, to assist in the early detection of invasive species.
Invasive species often pose the primary threat to biodiversity in the Pacific. USGS research focuses on the ecology, reducing impacts, and controlling highly invasive insect species. For example, USGS scientists are assessing novel mosquito control tools (e.g., bacterial endosymbiont Wolbachia). Mosquitoes carry diseases that affect people (e.g., West Nile virus, dengue); therefore, the...
Invasive zebra and quagga mussels (collectively called dreissenid mussels) are causing significant ecological and economic impacts and the range of these impacts continues to increase as they spread across North America. Dreissenids affect industrial and municipal infrastructure, recreational water users, and they severely alter aquatic ecosystems. USGS has been conducting dreissenid mussel...
Understanding life history and the environmental requirements, tolerances, and thresholds of invasive species is critical to developing effective control and management options. The USGS conducts research on the biology of many species including Nutria and feral pigs to provide the information needed by management agencies.
Invasive species have negatively impacted many ecosystems. Invasive reptiles are an increasing problem across the United States. Tracking the establishment and spread of existing and new invasive species is critical to effectively manage invasive species. USGS scientists are developing new tools, particularly molecular techniques, to assist in the early detection of, and rapid response to, ...
The negative effects of invasive Asian carp to the Nation’s waterways are far reaching and have potential to expand and intensify. USGS is delivering data, tools and technologies to partners to keep these invasive fish out of the Great Lakes and other aquatic ecosystems and control them where they occur in the Ohio River and Mississippi River Basins.
Experimental suppression of invasive lake trout: Implications for conservation of imperiled bull trout in Glacier National Park
After 14,000 years of dominance, Glacier National Park’s (GNP) greatest native aquatic predator is at high risk of extirpation (local extinction) in several lakes on the western slopes of the Continental Divide. The decline of threatened bull trout in GNP is directly attributed to the invasion and establishment of nonnative lake trout, which consistently displace bull trout in systems where...
The Hunt For The Southernmost Snakehead. Thirty-one fishery biologists from eleven agencies participated in a two-day Fish Slam event. Thirty-five sites in Broward and Miami-Dade counties were sampled for non-native fishes.
The purpose of this field guide is to provide information on nonindigenous (i.e., non-native) fishes that have been observed in Florida’s marine waters.
The NAS provides spatially referenced biogeographic accounts of aquatic species introduced into the United States. The NAS allows for real-time queries, has regional contact information, species accounts and general information. Sign up for species-specific email alerts. Special maps available for zebra and quagga mussels, Asian carp and lionfish.
Interactive map of the distribution of quagga mussels in North America. This map is provided by the USGS Nonindigenous Aquatic Species program.
Interactive map of the distribution of zebra mussels in North America. This map is provided by the USGS Nonindigenous Aquatic Species program.
Multiple search functions: State, major drainage area (HUC2), drainage area (HUC6), drainage area (HUC8), Zebra Mussel Collections, and fact sheets.
Can you hear the difference between the non-native Cuban treefrog and two common Louisiana native treefrogs? Cuban treefrogs’ call is distinctive. Biologist Paul Moler of the Florida Fish and Wildlife Conservation Commission recorded them in South Florida. Credit: Paul Moler, used with permission.
Lionfish invasion (1985-2018). Lionfish invaded US Atlantic coastal waters, the Caribbean Sea, and the Gulf of Mexico with unprecedented, alarming speed. Though reports of sightings date back to the 1980s, it is only recently that the species has exploded in numbers and range. In fact, the lionfish invasion is the ...
In 2018, USGS and partners completed an incredible feat against a harmful aquatic invasive species when over 240,000 pounds of invasive Silver Carp and Bighead Carp were removed from Creve Coeur Lake in Maryland Heights, Missouri.
Out with the old, in with the new! A state-of-the-art aquatic science laboratory is being built on the shores of Lake Huron at the USGS Hammond Bay Biological Station (HBBS), one of seven field stations of the USGS Great Lakes Science Center, operated in partnership with the Great Lakes Fishery Commission. To make way for the new laboratory, four old buildings on the HBBS property needed to be...
USGS scientist Nick Johnson isn’t afraid to get dirty. Here he is expressing green feces from a parasitic sea lamprey. DNA in the feces may help USGS scientists discover the identity of sea lamprey’s last meal.
Invasive black and white tegu lizards (Salvator merianae). USGS is working on development of tools for the detection and capture of invasive reptiles in Florida.
The USGS field tested the use of a portable hand-held kit for the detection of the environmental DNA (eDNA) of Asian carps (bighead carp and silver carp) in water samples as part of on-going invasive species detection research. The goals of the USGS-led research are to develop a method and kit that can be used on-site to detect Asian carp eDNA within one hour. Developing portable, rapid and...
Watch as the USGS Hammond Bay Biological Station water tank and pump house are constructed from the ground up! This short video features time lapse photography of the 1-million gallon water tank and pump house constructed to supply water to a state-of-the-art aquatic science laboratory. Laboratory construction will occur over the next several years and will also be chronicled with time lapse...
This is an introductory video to an adaptive management approach for the invasive plant Phragmites australis in the Great Lakes basin. An adaptive management framework is an iterative process of robust decision making aimed at reducing uncertainty over time, for a variety of stakeholders with differing backgrounds and interests, via system monitoring.
Synthetic surrogate water-hardened Silver Carp Eggs settled on top of a sediment bed. Laboratory experiments in flowing water demonstrate egg suspension at lower velocities than previously thought. The drift of synthetic eggs at a range of flows was evaluated to provide insight into both suspension of water-hardened Silver Carp eggs and the potential interaction of eggs with the bottom of a...
This is a timelapse video of a dye tracer study at Brandon Road Lock, a U.S. Army Corps of Engineers (USACE) facility in Joliet, IL, on the Des Plaines River on October 20, 2015. This video was collected using a digital camera mounted on the upstream gates of the lock looking downstream with a 5-second interval between images and played back at 10 frames per second (fps). This data collection...
Capturing juvenile bull trout by electroshocking Logging Creek and then transporting them in a backpack up the trail to Grace Lake.
When a moving barge encounters small fish in the Illinois Waterway there is a possibility that the fish will become trapped in the gap between barges, according to a new study by the U.S. Fish and Wildlife Service and the U.S. Geological Survey.
Two recent reports of two brown treesnakes on Saipan is prompting federal and state officials to urge citizens of Hawaii, Guam and other Pacific Islands to report any sightings of these invasive snakes to authorities. Snakes can be reported by calling (671) 777-HISS or (670) 28-SNAKE.
Snake fungal disease, or SFD, a disease causing high mortality rates in some species of snakes, has been found in Louisiana for the first time, according to a new study by U.S. Geological Survey scientists. SFD now has been confirmed in at least 16 states in the Eastern and Midwestern United States.
The areas of the United States that are most at risk of a potentially invasive salamander fungus are the Pacific coast, the southern Appalachian Mountains and the mid-Atlantic regions, according to a recently published U.S. Geological Survey report.
Boaters, swimmers or other members of the public who see Lionfish, Asian carp, Zebra mussels or any other invasive or non-native plant or animal species have two options to report sightings.
Sea Lamprey Mating Pheromone Registered by U.S. Environmental Protection Agency as First Vertebrate Pheromone Biopesticide
Ann Arbor, MI – The U.S. Environmental Protection Agency registered a sea lamprey mating pheromone, 3kPZS, as the first ever vertebrate pheromone biopesticide in late December, 2015. Like an alluring perfume, the mating pheromone is a scent released by male sea lampreys to lure females onto nesting sites.
Continued Decline of the Northern Spotted Owl Associated with the Invasive Barred Owl, Habitat Loss, and Climate Variation
CORVALLIS, Ore. – Northern spotted owl populations are declining in all parts of their range in the Pacific Northwest, according to research published in The Condor. Based on data from 11 study areas across Washington, Oregon and northern California, a rangewide decline of nearly 4 percent per year was estimated from 1985 to 2013.
The invasive northern snakehead fish found in the mid-Atlantic area is now cause for more concern, potentially bringing diseases into the region that may spread to native fish and wildlife, according to a team of U.S. Geological Survey scientists.
Silver carp, a species of invasive Asian carp, demonstrated a strong aversion to certain noises during a recent study on the potential use of sound for silver carp control.
Scientists use the word “anthropogenic” in referring to environmental change caused or influenced by people, either directly or indirectly.