NAS - Nonindigenous Aquatic Species

small fish

Query by major hydrologic unit

This page allows you to query for an up-to-date listing of nonindigenous species by major hydrologic unit. You may either select the area of interest from the scrolled list on the left, or by clicking on the map below.

(records per page)

Huc2Map 1 New England 2 Mid-Atlantic 3 South Atlantic-Gulf Great Lakes 5 Ohio 7 Upper Mississippi Lower Mississippi 9 Souris-Red-Rainy 10 Missouri 11 Arkansas-White-Red 12 Texas-Gulf 13 Rio Grande 15 Lower Colorado 16 Great Basin 17 Pacific Northwest 18 California 19 Alaska 20 Hawaii 14 Upper Colorado 6 Tennessee nothing

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