NAS - Nonindigenous Aquatic Species

Specimen ID	State	County	Locality	Year	HUC Number	Drainage name	Status
611377	MA	Middlesex	Framingham, Farm Pond	1959	01070005	Concord	established
611375	MA	Middlesex	Lake Williams, Marlborough	1993	01070005	Concord	established
611428	MA	Middlesex	Sudbury River, Wayland	1999	01070005	Concord	established
611380	MA	Middlesex	Sudbury, NE of rt. 20 Bridge-Wayland	1962	01070005	Concord	established
611383	MA	Middlesex	Walden Pond, Concord	1969	01070005	Concord	established
873840	MA	Middlesex	Williams Lake at sampling station F5GA	1993	01070005	Concord	established
874213	MA	Middlesex	Williams Lake at sampling station F8S	1993	01070005	Concord	established

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

Data are not available for download from the web site. Please contact NAS staff for a custom query.