Cynoscion similis, Tonkin weakfish : fisheries

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Cynoscion similis Randall & Cervigón, 1968

Tonkin weakfish
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Cynoscion similis   AquaMaps   Data sources: GBIF OBIS
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Image of Cynoscion similis (Tonkin weakfish)
Cynoscion similis
Picture by JAMARC

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Eupercaria/misc (Various families in series Eupercaria) > Sciaenidae (Drums or croakers)
Etymology: Cynoscion: Greek, kyon = dog + Greek, odous = teeth + Greek, skion, skiaina = barbel, red mullet (Ref. 45335).
More on authors: Randall & Cervigón.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; demersal; depth range 20 - 60 m (Ref. 3702). Tropical; 12°N - 4°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Atlantic: Colombia to northern Brazil. Also reported in Nicaragua (Ref. 13613).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm TL male/unsexed; (Ref. 3702); common length : 40.0 cm TL male/unsexed; (Ref. 3702); max. published weight: 2.0 kg (Ref. 5217)

Short description Morphology | Morphometrics

Dorsal spines (total): 11; Dorsal soft rays (total): 24-29; Anal spines: 2; Anal soft rays: 8 - 10. Silvery grey on back, pale below. Trunk with dotted oblique stripes along scale rows. Inside opercle black, visible externally. Spinous dorsal-fin margin dark. Mouth large, slightly oblique, lower jaw projecting. Upper jaw with a pair of large canine-like teeth at tip. Chin without barbels or pores. Snout with 2 marginal pores. Gas bladder with a pair of straight, horn-like anterior appendages. Soft dorsal fin unscaled except 2 or 3 rows of small scales along its base (Ref 51721).

Biology     Glossary (e.g. epibenthic)

Found over mud and sand bottoms (Ref. 3702). Marketed mostly fresh (Ref. 3702).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Cervigón, F., 1993. Los peces marinos de Venezuela. Volume 2. Fundación Científica Los Roques, Caracas,Venezuela. 497 p. (Ref. 9626)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 16 October 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: minor commercial
FAO - Publication: search | FishSource |

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 26 - 27.6, mean 26.9 °C (based on 14 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00391 - 0.01767), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.9   ±0.7 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (44 of 100).
Price category (Ref. 80766):   Medium.