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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.




Cynoscion nebulosus x C. xanthulus
Cynoscion nebulosus x C. xanthulus
(spotted seatrout x orangemouth corvina)
Marine Fishes
Exotic Hybrid
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Cynoscion nebulosus x C. xanthulus

Common name: spotted seatrout x orangemouth corvina

Synonyms and Other Names: spotted seatrout x orangemouth corvina.

Identification: Howells (1992b).

Size: Probably similar to parent species: 90-125 cm.

Native Range: None; artificial hybrid.


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 Cynoscion nebulosus x C. xanthulus are found here.

StateYear of earliest observationYear of last observationTotal HUCs with observations†HUCs with observations†
Texas198119921Upper San Antonio

Table last updated 9/30/2019

† Populations may not be currently present.


Means of Introduction: Intentionally stocked by the Texas Parks and Wildlife Department from 1984 through 1986 as a sport fish.

Status: As of 1990, only a few hybrids still survived in Calaveras Reservoir. It was predicted that the populations would soon die out (Howells 1991a, 1991c; Howells and Garrett 1992).

Impact of Introduction: The impacts of this species are currently unknown, as no studies have been done to determine how it has affected ecosystems in the invaded range. The absence of data does not equate to lack of effects. It does, however, mean that research is required to evaluate effects before conclusions can be made.

Remarks: The Calaveras Reservoir stocking totaled 75,642 fish (Howells and Garrett 1992).

References: (click for full references)

Howells, R.G. 1991. Identification of orangemouth corvina, spotted seatrout and their hybrids. Management Data Series No. 57. Texas Parks and Wildlife Department, Fisheries Division, Austin, TX.

Howells, R.G., and G.P. Garrett. 1992. Status of some exotic sport fishes in Texas waters. Texas Journal of Science 44(3):317-324.

Texas Parks and Wildlife Department. 2001. Fish Records: Water Body - All Tackle. Texas Parks and Wildlife Department. April 24, 2001

Other Resources:
Fact Sheet for Cynoscion nebulosus - USGS Nonindigenous Aquatic Species Database

Fact Sheet for Cynoscion xanthulus - USGS Nonindigenous Aquatic Species Database


Author: Fuller, P.

Revision Date: 5/9/2019

Peer Review Date: 4/1/2016

Citation Information:
Fuller, P., 2019, Cynoscion nebulosus x C. xanthulus: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=949, Revision Date: 5/9/2019, Peer Review Date: 4/1/2016, Access Date: 11/12/2019

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.

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. [2019]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [11/12/2019].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted. For queries involving fish, please contact Matthew Neilson. For queries involving invertebrates, contact Amy Benson.