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Eques lanceolatus (Linnaeus, 1758)

Jack-knifefish
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Eques lanceolatus
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Aruba country information

Common names: [No common name]
Occurrence: native
Salinity: marine
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/aa.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Cervigón, F., R. Cipriani, W. Fischer, L. Garibaldi, M. Hendrickx, A.J. Lemus, R. Márquez, J.M. Poutiers, G. Robaina and B. Rodriguez, 1992
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:   More on author: Linnaeus.

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

Θαλασσινό(ά) Υφαλόφιλο(α); εύρος βάθους 10 - 60 m (Ref. 7251).   Tropical; 37°N - 34°S, 98°W - 33°W

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

Western Atlantic: Bermuda and North Carolina, USA to Rio de Janeiro, Brazil (Ref. 57756).

Μέγεθος / Βάρος / Age

Maturity: Lm ?  range ? - ? cm
Max length : 25.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 7251); common length : 15.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 5217)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά) : 13; Μαλακές ραχιαίες ακτίνες (συνολικά) : 47 - 55; Εδρικές άκανθες: 2; Μαλακές εδρικές ακτίνες: 16. Very high first dorsal fin with a short base (Ref. 26938). Gray with three white-edged dark brown to black bands, the first running vertically through eye, the second from nape across operculum and chest to front of pelvic fins, and the last beginning on first dorsal fin and running to end of caudal fin (Ref. 13442). Third and widest band from tip of high dorsal fin, curving along length of body to tip of tail (Ref. 26938).

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Inhabits bays and sounds; also deep coral reefs (Ref. 9710). Juveniles sometimes inshore (Ref. 9710). Easily approached (Ref. 9710). Has been reared in captivity (Ref. 35420). Feeds mainly on small shrimps and crabs, but also on polychaete worms and gastropod mollusks (Ref. 13442).

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

Oviparous (Ref. 240).

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 09 October 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Reports of ciguatera poisoning (Ref. 30303)




Human uses

αλιεία: περιορισμένης εμπορικότητας; Ενυδρείο: Εμπορικό(ά)
FAO(Publication : search) | FishSource |

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Διαδικτυακές πηγές

Estimates based on models

Preferred temperature (Ref. 115969): 22.7 - 28, mean 25.7 (based on 274 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00416 - 0.01206), b=3.20 (3.06 - 3.34), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  3.4   ±0.4 se; based on diet studies.
Ελαστικότητα (Ref. 120179):  Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (15 of 100).
Price category (Ref. 80766):   Medium.