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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.




Pomacea haustrum
Pomacea haustrum
(titan applesnail)
Mollusks-Gastropods
Exotic
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Pomacea haustrum (Reeve, 1858)

Common name: titan applesnail

Taxonomy: available through www.itis.govITIS logo

Identification: Large globular shaped shell.

Native Range: South America (Bolivia, Brazil, and Peru)

US auto-generated map Legend USGS Logo
Alaska auto-generated map
Alaska
Hawaii auto-generated map
Hawaii
Caribbean auto-generated map
Puerto Rico &
Virgin Islands
Guam auto-generated map
Guam Saipan
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 Pomacea haustrum are found here.

StateYear of earliest observationYear of last observationTotal HUCs with observations†HUCs with observations†
Florida197820072Everglades; Florida Southeast Coast

Table last updated 5/25/2018

† Populations may not be currently present.


Ecology: Freshwater rivers.

Means of Introduction: Probable aquarium introduction.

Status: This is the only known area where this species is established in the United States (Rawlings et al. 2007).

Impact of Introduction: Unknown

Remarks: Research by Savaya-Alkalay et al. (2018) suggests that the development of all-male prawn populations of Macrobrachium rosenbergii has the potential as an biocontrol agent over hatchling and adult apple snails (Pomacea spp.). Medium-sized and large prawns (10–30 g) efficiently preyed on snails up to 15mm in size, while small prawns (up to 4 g) effectively consumed snail hatchlings.

References: (click for full references)

Rawlings, T. A., K. A. Hayes, R. H. Cowie, and T. M. Collins. 2007. The identity, distribution, and impacts on non-native apple snails in the continental United States. BMC Evolutionary Biology, http://www.biomedcentral.com/1471-2148/7/97.

Savaya-Alkalay, A., Ovadia, O., Barki, A., and A. Sagi. 2018. Size-selective predation by all-male prawns: implications for sustainable biocontrol of snail invasions. Biological Invasions 20:137–149.

Author: Benson, A.J.

Revision Date: 2/16/2018

Citation Information:
Benson, A.J., 2018, Pomacea haustrum (Reeve, 1858): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=2600, Revision Date: 2/16/2018, Access Date: 7/16/2018

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.

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URL: https://nas.er.usgs.gov
Page Contact Information: Pam Fuller - NAS Program (pfuller@usgs.gov)
Page Last Modified: Tuesday, July 10, 2018

Disclaimer:

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. [2018]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [7/16/2018].

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