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Cynoscion jamaicensis (Vaillant & Bocourt, 1883)

Jamaica weakfish
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Cynoscion jamaicensis   AquaMaps   Data sources: GBIF OBIS
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Cynoscion jamaicensis
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Grenada country information

Common names: [No common name]
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/gj.html
National Fisheries Authority: http://www.caricom-fisheries.com/grenada-fisheries
Occurrences: Occurrences Point map
Main Ref: Chao, L.N., 1978
National Database:

Common names from other countries

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

> 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: Vaillant & Bocourt.

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

Θαλασσινό(ά); Υφάλμυρο βενθικό(ς); εύρος βάθους 1 - 70 m (Ref. 9626), usually 18 - 55 m (Ref. 9626).   Subtropical; 18°N - 52°S, 83°W - 34°W

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

Western Atlantic: Panama and the Greater Antilles to Argentina. Including Lesser Antilles (Ref. 26938). Also reported in Nicaragua (Ref. 13613).

Length at first maturity / Μέγεθος / Βάρος / Age

Maturity: Lm 25.1, range 15 - ? cm
Max length : 56.9 cm TL αρσενικό/απροσδιόριστο; (Ref. 125970); common length : 35.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 3702); μεγ. δημοσιευμένο βάρος: 2.2 kg (Ref. 125970)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά) : 11; Μαλακές ραχιαίες ακτίνες (συνολικά) : 23 - 27; Εδρικές άκανθες: 2; Μαλακές εδρικές ακτίνες: 9. Colour greyish above, silvery below. Without conspicuous spots, but with faint dark streaks along scale rows above lateral line. Pectoral-fin bases and upper rays slightly dark, pelvic and anal fins often yellowish, dorsal and caudal fins dusky with darker margin. Inside opercle darkish visible externally. Mouth large, oblique, lower jaw slightly projecting. Upper jaw with a pair of large canine-like teeth at tip. Chin without barbel or pores, snout with only 2 marginal pores. Gas bladder with a pair of horn-like anterior appendages. Sagitta (large earstone) moderately broad and thick, Lapillus (small earstone rudimentary. Scales large. Soft portion of dorsal-fin base covered with small scales up to 1/2 of fin height (Ref 51721).

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Found over sand or mud bottoms from the coastline to about 60 m depth (Ref. 3702); rarely in waters with a depth of less than 18 m (Ref. 9626). Juveniles inhabit river estuaries (Ref. 3702). Oviparous, with high fecundity (Ref. 54358). Feed on fishes and crustaceans like crabs and shrimps (Ref. 35237). Important food fish (Ref. 3702).

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

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: 11 October 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

αλιεία: Εμπορικό(ά); αλιεία αναψυχής: ναί

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Διαδικτυακές πηγές

Estimates based on models

Preferred temperature (Ref. 115969): 11.3 - 27.9, mean 22.4 (based on 376 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00614 - 0.00895), b=3.07 (3.05 - 3.09), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  3.8   ±0.66 se; based on food items.
Ελαστικότητα (Ref. 120179):  Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Fec = 47,000).
Prior r = 1.00, 95% CL = 0.66 - 1.50, Based on 1 data-limited stock assessment.
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (32 of 100).
Price category (Ref. 80766):   Medium.