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Hudson and Delaware Marine Fisheries

Image of Fish

The Hudson River Fisheries Unit of the Division of Marine Resources takes a river-wide approach to its work which covers the Hudson Valley portions of Regions 2, 3, and 4 of the NYSDEC. Research focuses on migratory fish in the 152 miles of the Hudson River Estuary from the George Washington Bridge in New York City to the Federal Dam located in Troy. The Unit also gathers data on resident species such as the shortnose sturgeon, black bass (largemouth and smallmouth bass), and many other fishes among the over 200 other species that occur in the Hudson.

Managing Diadromous Fish (Anadromous/Catadromous)

NYSDEC crew processing striped bass captured in the haul seine.

Anadromous comes from a Greek word meaning "running upward". These essentially marine fish spend many years in ocean waters until they mature and run up to the freshwater Hudson to spawn. After spawning, the adults return to the Atlantic and the new year's spawn of shad, herring, and bass spend their first summer in the river before they join in the ocean migration. On the flip side catadromous fish spend their life in the freshwater and return to the ocean to spawn (American eel). Because these fish range widely in the near shore ocean, they are managed on a coast wide basis. Each of the fifteen coastal states from Florida to Maine participates in cooperative interstate management of these species through the Atlantic States Marine Fisheries Commission.

Species Management and Research

For more information about the research and management of the following fish species, please click on the links below.

Three Fish lined up smallest to largest

Commercial Fishing Information

A marine permit application to use a gill netting and/or scap net in the Hudson River above the Tappan Zee Bridge is located on the menu bar to the right. A passport size photo and proof of residency (ie. driver's license) must accompany the application.


More about Hudson and Delaware Marine Fisheries: