Copy/paste HTML into your web page

** Printing Map only. Popup Info and other widget will not be printed out.
Lionfish Observations Time-series of observing points
Time Slider

Please reload if map is not shown.

Map Description

The red lionfish is an invasive species native to the Indo-Pacific Ocean. Their human-caused introduction to the northern Atlantic and subsequent population increase are now causing negative impacts on marine ecosystems in the southeastern Gulf of Mexico and the Caribbean Sea. Lionfish are efficient predators invading a variety of natural and artificial habitats, competing with native predator fish and consuming smaller fishes, including the young of large species.

Observations of red lionfish have been recorded on coral reefs, artificial reefs and deeper hard bottom areas (up to 1000 feet deep or 305 meters), wrecks, mangroves, seawalls, docks, and estuaries ranging from the northeastern U.S. and Bermuda to the western Gulf of Mexico and throughout the Caribbean Sea.

The first observation in 1985, but no locational information was available until 1995.

Data providers

Data source Nonindigenous Aquatic Species (NAS) – USGS
National Marine Sanctuaries - NOAA
Harte Research Institute – TAMU-CC
Marine Science Institute - UT
ASCUBA venture Inc.
Texas State Aquarium
Texas Parks and Wildlife Department
Acuario Nacional de Cuba
Comision Nacional de Areas Naturales Protegidas (CONANP) – SEMARNAT
Reserva de la Biosfera Ría Lagartos
Parque Nacional Arrecife Alacranes
Parque Nacional Sistema Arrecifal Veracruzano
Conservacion y Biodiversidad
Universidad Autónoma de Yucatan
Updated in June 2014

Database curator: Jorge Brenner, The Nature Conservancy in Texas

The Nature Conservancy is working with federal, and state agencies, fisherman and diving communities and universities in understanding the risk of this invasion in our natural resources in the Gulf of Mexico and communicating these threats to inform decision-making process in the Gulf.

Map Creator: Shin Kobara, GCOOS


How to

Default time slider shows 2-years range.

Thumb index can be expanded like below.

Or make it one thumb so that only data in the specific year will appear

** time slider moves every 3 seconds and loop automatically.


Any feedback is appreciated: Send Mail


Point Cluster (2-10, 10-100, >100 points within 70 pixels)


** based on the same data set.


Search field (Specimen ID, Year, or Locality)
** Turn on a Time-series layer
Search Results (records)
Specimen Year Place