Summary

IDENTIFICATION

SCIENTIFIC NAME

Cynoscion othonopterus

SPECIES NAME(S)

Gulf weakfish, Gulf corvina

COMMON NAMES

Gulf corvina

Gulf weakfish, Cynoscion othonopterus, is endemic to the northern Gulf of California and a vital component of commercial fisheries in the northern Gulf of California. A lack of information on life history parameters have prevented a comprehensive stock assessment.

This benthopelagic species inhabits coastal waters to depths of 30 m. Cynoscion juveniles are often found near river mouths but within this species' distribution, the one large river mouth available for juveniles is the Colorado River which has ceased to flow consistently since the 1960s (Gherard et al. 2013).

This species is threatened by overfishing within its very restricted range. Even though it is present in a Marine Protected Area (Biosphere Reserve), it is still fished seasonally during its spawning aggregation. Shrimp trawling activities also capture juveniles as by-catch. Declines in commercial landings have also been at least partially attributed to reduced river flow (Chao et al. 2010).


ANALYSIS

No related analysis

SCORES

Management Quality:

Management Strategy:

NO SCORE

Managers Compliance:

NO SCORE

Fishers Compliance:

NO SCORE

Stock Health:

Current
Health:

NO SCORE

Future Health:

NO SCORE


FIPS

No related FIPs

CERTIFICATIONS

No related MSC fisheries

Fisheries

Within FishSource, the term "fishery" is used to indicate each unique combination of a flag country with a fishing gear, operating within a particular management unit, upon a resource. That resource may have a known biological stock structure and/or may be assessed at another level for practical or jurisdictional reasons. A fishery is the finest scale of resolution captured in FishSource profiles, as it is generally the scale at which sustainability can most fairly and practically be evaluated.

MANAGEMENT UNIT FLAG COUNTRY FISHING GEAR
Panama Panama Hooks and lines

Analysis

OVERVIEW

1.STOCK STATUS

STOCK ASSESSMENT

Last updated on 30 August 2016

Lack of information on life history parameters have prevented a comprehensive stock assessment.

2.MANAGEMENT QUALITY

3.ENVIRONMENT AND BIODIVERSITY

FishSource Scores

SELECT SCORES

MANAGEMENT QUALITY

STOCK HEALTH:

HUMAN RIGHTS ABUSE RISK

High Medium Low

Fishery Improvement Projects (FIPs)

No related FIPs

Certifications

Marine Stewardship Council (MSC)

No related MSC certifications

Sources

Credits
  1. Gherard, K.E., Erisman, B.E., Aburto-Oropeza, O., Rowell, K. and Allen, L.G., 2013. Growth, development, and reproduction in Gulf corvina (Cynoscion othonopterus). Bulletin, Southern California Academy of Sciences, 112(1), pp.1-18.

  2. Chao, L., Espinosa, H., Findley, L. & van der Heiden, A. 2010. Cynoscion othonopterus. The IUCN Red List of Threatened Species 2010: e.T183682A8157661.

References

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