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Lutjanus johnii (Bloch, 1792)

John's snapper
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Native range | All suitable habitat | Point map | Year 2050
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Lutjanus johnii   AquaMaps   Data sources: GBIF OBIS
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Lutjanus johnii
Picture by Cook, D.C.


Australia country information

Common names: Big-scaled bream, Fingermark bream, Fingermark seaperch
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: From North West Cape to Darwin (Ref. 5978). Also Ref. 55.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority: http://www.csiro.au/
Occurrences: Occurrences Point map
Main Ref: Hoese, D.F., D.J. Bray, J.R. Paxton and G.R. Allen, 2006
National Database:

Common names from other countries

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

Teleostei (teleosts) > Eupercaria/misc (Various families in series Eupercaria) > Lutjanidae (Snappers) > Lutjaninae
Etymology: Lutjanus: Malay, ikan lutjan, name of a fish.
  More on author: Bloch.

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

Marine; brackish; reef-associated; oceanodromous (Ref. 51243); depth range 0 - 80 m (Ref. 30573).   Tropical; 31°N - 30°S, 30°E - 174°W (Ref. 55)

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

Indo-West Pacific: East Africa to Fiji, north to the Ryukyu Islands, south to Australia.

Length at first maturity / Size / Weight / Age

Maturity: Lm 51.9  range ? - ? cm
Max length : 97.0 cm TL male/unsexed; (Ref. 40637); common length : 50.0 cm TL male/unsexed; (Ref. 55); max. published weight: 10.5 kg (Ref. 4699)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 10; Dorsal soft rays (total): 13 - 14; Anal spines: 3; Anal soft rays: 8. Dorsal profile of head steeply sloped. Preorbital width equal to eye diameter or larger. Preopercular notch and knob poorly developed. Scale rows on back parallel to lateral line. Center of each scale often with a reddish-brown spot, giving an overall appearance of series of horizontal lines on side of body. Generally yellow with a bronze to silvery sheen, shading to silvery white on belly and underside of the head. A large black blotch mainly above the lateral line below the anterior dorsal-fin rays.

Biology     Glossary (e.g. epibenthic)

Adults probably frequent coral reef areas; juveniles found in mangrove estuaries (Ref. 30573). Feed on fishes and benthic invertebrates including shrimps, crabs and cephalopods. In Hong Kong live fish markets (Ref. 27253).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Allen, G.R., 1985. FAO Species Catalogue. Vol. 6. Snappers of the world. An annotated and illustrated catalogue of lutjanid species known to date. FAO Fish. Synop. 125(6):208 p. Rome: FAO. (Ref. 55)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 05 March 2015

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial; aquaculture: commercial; gamefish: yes
FAO(Aquaculture systems: production; Fisheries: production; publication : search) | FishSource | Sea Around Us

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Trophic ecology
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Ecology
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Estimates based on models

Preferred temperature (Ref. 115969): 25 - 29.1, mean 28.2 (based on 1824 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00985 - 0.02326), b=2.92 (2.80 - 3.04), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.2   ±0.6 se; based on diet studies.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (K=0.13-0.38).
Prior r = 0.40, 95% CL = 0.26 - 0.60, Based on 1 full stock assessment.
Fishing Vulnerability (Ref. 59153):  High vulnerability (65 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (90 of 100).
Price category (Ref. 80766):   High.