Generate a Nonindigenous Species List

Select your criteria below. A list of species that matches your criteria will be generated. Species with profiles will have links to the profiles.

Define: Group
Taxonomic Grouping.
Define: Status
reproductive population status of the species in this location
Define: Status Elements
Established- population is reproducing and overwintering
Reported- species seen; reproduction is not known - this is default status; many of these are actually established populations.
Failed- population was stocked but died out; failed to reproduce; or was eliminated.
Define: Status
To search for records occurring during a single year, enter the year in both boxes.

Otherwise, enter a starting and ending year.

The year range is inclusive (meaning that the starting and ending years will be included in the results).
Define: Freshwater/Marine
salinity of introduction location.
Define: Freshwater/Marine Elements
Freshwater- introduced into areas of low salinity.
Marine- introduced into areas of high salinity.
Brackish- introduced into areas of medium salinity.
Define: Pathway
(also called vector) mechanism responsible for bringing the species to the new location.
Define: Pathway Elements
Stocked- species was intentionally planted in the new location; i.e., stocked for sport, forage, stock contamination, biocontrol; includes legal and illegal stocking
Shipping- ballast water discharge and/or hull fouling
Aquarium release- species traditionally kept in aquaria (fish, snails) released into the wild by owners who no longer want them; can include escapes from aquaculture for locations in Florida since it is often impossible to distinguish between the two pathways in this area
Bait release- species introduced as discarded bait
Aquaculture- species that escaped from aquaculture facilities
Canals- species that gained access to new areas via canals
Pet Escape- species that were released by pet owners; species other than fish, snails
Define: Has eDNA Data
Select checkbox to limit results to species with eDNA detection data.

Simple Search
Search tips:
Search form will search for any part of word.
Example: common Name = "turtle" will return all
species with the word "turtle" in the common name.
Search does not support wildcards (*,%,?,etc.).


The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [4/23/2024].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.

For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.