The Nonindigenous Occurrences section of the NAS species profiles has a new structure. The section is now dynamically updated from the NAS database to ensure that it contains the most current and accurate information. Occurrences are summarized in Table 1, alphabetically by state, with years of earliest and most recent observations, and the tally and names of drainages where the species was observed. The table contains hyperlinks to collections tables of specimens based on the states, years, and drainages selected. References to specimens that were not obtained through sighting reports and personal communications are found through the hyperlink in the Table 1 caption or through the individual specimens linked in the collections tables.

Macrobrachium olfersii
Macrobrachium olfersii
(bristled river shrimp)

Copyright Info
Macrobrachium olfersii (Wiegmann, 1836)

Common name: bristled river shrimp

Taxonomy: available through www.itis.govITIS logo

Native Range: Central and South America from Vera Cruz, Mexico, to Santa Catharina, Brazil (Holthuis & Provenzano,1970).

Hydrologic Unit Codes (HUCs) Explained
Interactive maps: Point Distribution Maps

Nonindigenous Occurrences:

Table 1. States with nonindigenous occurrences, the earliest and latest observations in each state, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Macrobrachium olfersii are found here.

StateFirst ObservedLast ObservedTotal HUCs with observations†HUCs with observations†
FL193319522Daytona-St. Augustine; Upper St. Johns
TX197519751Northern Gulf of Mexico

Table last updated 7/24/2024

† Populations may not be currently present.

Means of Introduction: Possible accidental introduction with water plants and/or fishes from South America (White, 1977).

References: (click for full references)

Holthius, L.B. and A.J. Provenzano, Jr. 1970. New distribution records for species of Macrobrachium with notes on the distribution of the genus in Florida. Crustaceana 21(3):211-213.

White, C.J. 1977. Extension of the known range of Macrobrachium olfersi (Wiegman, 1836) in coastal Louisiana (Decapoda, Caridea). Crustaceana 33(2):221-222.

Other Resources:
Macrobrachium olfersii (Bristled river shrimp) (Gulf of Mexico Program)

Author: Benson, A.J.

Revision Date: 2/11/2020

Citation Information:
Benson, A.J., 2024, Macrobrachium olfersii (Wiegmann, 1836): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=1202, Revision Date: 2/11/2020, Access Date: 7/24/2024

This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is 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 information.


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 [7/24/2024].

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