Gammarus tigrinus
Gammarus tigrinus
(tiger scud)
Native Transplant

28 results for Gammarus tigrinus (tiger scud)
Download Data

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
238942   Lake Superior2001 04180000 Lake Superiorestablished
1464123 ILAlexanderMississippi River2005 07140105 Upper Mississippi-Cape Girardeauunknown
1464156 ILAlexanderMississippi River2006 07140105 Upper Mississippi-Cape Girardeauunknown
1464022 ILRandolphMississippi River2004 07140105 Upper Mississippi-Cape Girardeauunknown
887485 ILRandolphMississippi River, at GRE-274/353445; 99 miles from mouth of [upper] Mississippi River2004 07140105 Upper Mississippi-Cape Girardeauunknown
1464033 KYBallardOhio River2004 05140206 Lower Ohiounknown
1464175 KYBallardOhio River2006 05140206 Lower Ohiounknown
1464058 KYCrittendenOhio River2004 05140203 Lower Ohio-Bayunknown
887486 KYHendersonORSO4466-042/356406; 182 miles from mouth of Ohio River2004 05140202 Highland-Pigeonunknown
1464046 KYUnionOhio River2005 05140202 Highland-Pigeonunknown
239898 MIBayLake Huron, Saginaw Bay2002 04240002 Lake Huronestablished
238941 MIMacombLake St. Clair1999 04090002 Lake St. Clairestablished
1598325 MIMonroe[Lake Erie, North Maumee Bay] [No locality description provided]2012 04260000 Lake Erieestablished
238939 MIMuskegonLake Michigan at Muskegon2002 04190000 Lake Michiganestablished
272376 MNSt. LouisLake Superior, Duluth Harbor1985 04180000 Lake Superiorestablished
238816 NY Lake Ontario1999 04280002 Lake Ontarioestablished
1598677 NYJefferson[No locality description provided]2012 04280002 Lake Ontarioestablished
238943 OH Lake Erie drainage2001 04260000 Lake Erieestablished
1565671 OHErie[No locality description provided]2016 04100011 Sanduskyestablished
1604797 ON [No locality description provided]2015 04240002 Lake Huronestablished
239899 ON Lake Huron2002 04240002 Lake Huronestablished
785650 ON small tributary to Grand River, just W of Byng Island Conservation Area2014 04250005 Lower Grand Riverestablished
785676 ON Wardells Creek near mouth2014 04250003 Big Creek-Frontal Lake Erieestablished
1598385 PAErieLake Erie [No locality description provided]2012 04260000 Lake Erieestablished
1695511 PAMontgomerySchuylkill River2022 02040203 Schuylkillunknown

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.


The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [3/1/2024].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.