Nonindigenous Species
Nonindigenous Species
Nonindigenous species are those that are not native to a particular area, or are found living outside of their historic range. Also known as non-native, these species do not necessarily cause harm to the environment in which they are found. However, when these species establish themselves and threaten the diversity or stability of a native species or environment, they are considered invasive.
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Asian Tiger Shrimp Distribution and Genetics
The Asian tiger shrimp began appearing in commercial shrimp catches in 2006. They grow larger than native shrimp and are known to be fierce predators - so shrimpers and managers are concerned about the potential effects this species might have.
Non-native Marine Fishes: Tracking Distributions with the USGS Nonindigenous Aquatic Species Database
WARC scientists work with local partners to verify and document sightings of non-native marine fishes.
Burmese Python Environmental DNA (eDNA) Surveys in the Stormwater Treatment Areas and Corkscrew Regional Ecosystem Watershed
USGS scientists have developed and optimized python-specific eDNA markers to detect Burmese pythons from water samples taken from the Florida Everglades. This development may aid in the identification of possible waterways used as corridors for northward expansion of this invasive species.
Assessing Risk Communication in the Pet and Aquarium Trade: An Analysis of Outreach and Engagement Efforts
WARC researchers evaluated whether outreach campaigns targeting pet owners are effectively reaching their desired audiences, namely pet owners who might unintentionally or purposefully release their pet into the wild.
Multi-year Burmese Python Vital Rate Research Collaborative in the Greater Everglades
USGS researchers will track juvenile Burmese python within Big Cypress National Preserve (BICY) and collect data on snake growth, habitat use, and causes of mortality. Known-fate models will be used to estimate survival and better understand factors that influence survival.
Laboratory Investigations with Fish Species to Assist with Implementing Barataria-Terrebonne National Estuary Program’s Ecological Management Action Plans
WARC scientists will obtain live fish specimens from the field to conduct and enhance on-going laboratory research on harmful algal blooms and the use of piscicides to control invasive fish.
Fish Slam December 2023
Fifty-four biologists from nine organizations, including USGS, participated in a two-day Fish Slam event on December 13 - 14, 2023 in Southwest Florida.
Fish Slam May 2023
Fish Slam events link research institutions such as museums and universities with federal, state, and local government agencies that possess expertise and field equipment to collect nonnative fishes, providing unique access to specimens for these institutions.
Fish Chat and Slam December 2022
Fifty-seven fish biologists from 12 organizations participated in a three-day Fish Chat and Slam event in South Florida.
Southwest Florida Fish Slam – Spring 2022
Forty-two fish biologists from seven organizations participated in a two-day Spring Fish Slam event in southwest Florida. Fourteen species of non-native fishes were collected or observed.
USGS Coordinated Burmese Python Research Strategy for South Florida (FY21 – FY27)
Wetland and Aquatic Research Center and Fort Collins Science Center are coordinating a long-term, landscape-scale Burmese python research strategy for South Florida.
Across Trophic Level System Simulation (ATLSS) Program for the Greater Everglades
Goals of the ATLSS Program are to help achieve a better understanding of components of the Everglades ecosystem, to provide an integrative tool for empirical studies, and to apply these tools to an adaptive management framework.