Data sources and partners: Fishing and fish health
August 29, 2025
New York State Department of Health
iMapInvasives
The iMapInvasives Partnership began in 2007 as a collective effort between the Natural Heritage Programs of Florida and New York as both states were taking on the task of managing invasive species data in addition to managing information about rare species and natural ecosystems for their states. Continued maintenance and enhanced functionality initiatives are funded by annual fees paid by individual state and provincial organizations administering active iMapInvasives sites.
New York State GIS Clearing House, Department of Environmental Conservation
A map of the extent of submerged aquatic vegetation (SAV) and water chestnut in the Hudson River Estuary in 2022. SAV mapping in the Hudson River Estuary was conducted in seven separate time periods using different sources of funding. The 1997 mapping was initiated with NOAA funds, Hudson River Foundation funds, and N.Y. State Environmental Protection Funds through the Hudson River Estuary Program. In 2002, 2007, 2014, 2016, 2018 and 2022 mapping was undertaken with New York State Environmental Protection Funds through the Hudson River Estuary Program.
DECinfo Locator
DECinfo Locator is an interactive map that lets you access Department of Environmental Conservation documents and public data about the environmental quality of specific sites in New York State, as well as outdoor recreation information. This tool and available information are maintained by the DEC.
Riverkeeper Water Quality Portal
Use this interactive map to explore water quality throughout the Hudson River watershed with data that Riverkeeper and our partners collect. Dive into when and where it is safe to swim and boat, how clean your drinking water is, and the health of the region's fish.
Related campaigns

Saving Hudson River fish
Protecting iconic species vital to our local ecosystems

Invasive species
Protecting the Hudson includes defending it against outside threats

Protecting and restoring habitats
The Hudson River watershed is home to a breathtaking diversity of life. Protecting and restoring our aquatic habitats is critical for their renewal and for a healthy future for all life in the watershed