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Eques lanceolatus (Linnaeus, 1758)

Jack-knifefish
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Image of Eques lanceolatus (Jack-knifefish)
Eques lanceolatus
Picture by Flescher, D.


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

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | 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 Ecologie

marien rifbewoner; diepte 10 - 60 m (Ref. 7251).   Tropical; 37°N - 34°S, 98°W - 33°W

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

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

Grootte / Gewicht / Leeftijd

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

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 13; Dorsale zachte stralen (totaal) : 47 - 55; Anale stekels: 2; Anale zachte stralen: 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).

Biologie     Verklarende woordenlijst (bv. 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).

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

Oviparous (Ref. 240).

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Niet bedreigd (LC) ; Date assessed: 09 October 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Reports of ciguatera poisoning (Ref. 30303)




Gebruik door de mens

Visserij: van minder commercieel belang; Aquarium: Commercieel
FAO(Publication : search) | FishSource |

Meer informatie

Trophic ecology
Voedselitems
Diet compositions
Food consumptions
Food rations
Predatoren
Ecology
Ecologie
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Lengtefrequenties
Mass conversions
Recruitments
Abundances
Life cycle
Voortplanting
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larven
Larvale populatiedynamiek
Distribution
Landen
FAO regio's
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Voorkomen
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BRUVS - Videos
Anatomy
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Hersenen
Otolieten
Physiology
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Nutrients
Oxygen consumptions
Zwemtype
Swimming speeds
Visual pigment(s)
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Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetica
Electrophoreses
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Human related
Aquaculture systems
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Estimates based on models

Preferred temperature (Ref. 115969): 22.7 - 28, mean 25.7 (based on 274 cells).
Fylogenetische diversiteitsindex (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).
Trofisch niveau (Ref. 69278):  3.4   ±0.4 se; based on diet studies.
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (15 of 100).
Prijsklasse (Ref. 80766):   Medium.