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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.

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Common name: Gulf Corvina

Synonyms and Other Names: Gulf weakfish

Taxonomy: available through www.itis.gov

Identification: Allen and Robertson (1994), Chao (1995).

Size: up to 70 cm TL.

Native Range: Marine; Gulf of California.

Interactive maps: Point Distribution Maps

Means of Introduction: Intentionally introduced as a sport fish in 1951 and 1956 from fishes obtained from San Felipe, Mexico (Walker et al. 1961).

Status: The introduction failed to produce a viable population and the species is extirpated in the Salton Sea.

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: This species is listed as 'vulnerable' on the IUCN Red List due to chronic overfishing and the reduction/termination of water flow in their primary spawning habitat (Colorado River).

References: (click for full references)

Allen, G.R., and D.R. Robertson. 1994. Fishes of the tropical eastern Pacific. University of Hawaii Press, Honolulu, HI.

Chao, L.N. 1995. Sciaenidae. Corvinas, barbiches, bombaches, corvinatas, corvinetas, corvinillas, lambes, pescadillas, rnacachos, verrugatos. 1427-1518 in W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter, and V. Neim, eds. Guía FAO para identificación de especies para los fines de la pesca. Pacifico Centro-Oriental. FAO, Roma.

Walker, B.W., R.R. Whitney, and G.W. Barlow. 1961. Fishes of the Salton Sea. 77-92 in B.W. Walker, ed. The ecology of the Salton Sea, California, in relation to the sport fishery of California. California Department of Fish and Game, Fish Bulletin 113.

Other Resources:
IUCN Red List

Author: Neilson, M.E.

Peer Review Date: 9/13/2011

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.