NAS Mobile Sighting Report


A new mobile application has been developed for Apple iOS and Google Android devices to allow remote reporting of nonindigenous aquatic species sightings. This allows accurate data (species description and pictures) to be reported to the NAS system at the point of observation.

Apple iOS

Click the following link to install the NAS Sighting app on your iPhone or iPad.

Requires iOS version 10.1 or higher

NAS Sighting on App Store


Download and install the NAS Sighting app on your Android device by manually installing ("sideloading") the APK file.

Requires Android version 5.1 or higher

How to install on most Android devices:

  1. Navigate to your Device Settings (typically a gear symbol).
  2. Go to your Security settings and check the box to allow Unknown sources. This will allow installation of apps from sources other than the Google Play Store.
  3. From your mobile device web browser, download the APK file from the link found on this webpage to your default mobile device downloads folder.
  4. Once the APK file has downloaded, go to your web browser downloads, either through your web browser or your list of apps, and select the APK file to install it.

NAS Sighting for Android

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Take Pride in America logoU.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: Matthew Neilson - NAS Program (
Page Last Modified: Wednesday, March 14, 2018


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. [2019]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [3/19/2019].

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 queries involving fish, please contact Matthew Neilson. For queries involving invertebrates, contact Amy Benson.