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Lutjanus jocu  (Bloch & Schneider, 1801)

Dog snapper
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| Native range | All suitable habitat | PointMap | Year 2100 |
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Lutjanus jocu   AquaMaps   Data sources: GBIF OBIS
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Image of Lutjanus jocu (Dog snapper)
Lutjanus jocu
Picture by Randall, J.E.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Lutjanidae (Snappers) > Lutjaninae
Etymology: Lutjanus: Malay, ikan lutjan, name of a fish.

Environment / Climate / Range Ecology

Marine; freshwater; brackish; reef-associated; depth range 2 - 40 m (Ref. 58047), usually 5 - 30 m (Ref. 9710).   Subtropical; 42°N - 9°S, 99°W - 10°W (Ref. 55232)

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 32 - ? cm
Max length : 128 cm TL male/unsexed; (Ref. 40637); common length : 60.0 cm TL male/unsexed; (Ref. 26938); max. published weight: 28.6 kg (Ref. 40637)

Short description Morphology | Morphometrics

Dorsal spines (total): 10; Dorsal soft rays (total): 14-15; Anal spines: 3; Anal soft rays: 8. Preopercular notch and knob weak. One of the pairs of canines in upper jaw notably enlarged, visible even when mouth is closed. Pectoral fins long, reaching level of anus. Scale rows on back rising obliquely above lateral line. Presence of a triangular bar between lower edge of eye and rear of mouth. Back and upper sides olive brown with bronze tinge, sometimes with narrow pale bars; lower sides and belly light reddish with a copper tinge. Young with a horizontal blue line below eye which breaks into a row of spots in adults.

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

Western Atlantic: Massachusetts, USA to São Paulo, Brazil (Ref. 57756), including the Gulf of Mexico and the Caribbean Sea (Ref. 9626). Eastern Atlantic: St. Paul's Rocks and Ascension Island (Ref. 13121), Tinhosa Grande, south of Príncipe Island (L.A. Pereira (pers. comm.).

Biology     Glossary (e.g. epibenthic)

Adults are common around rocky or coral reefs. Young are found in estuaries and occasionally enters rivers. Feed mainly on fishes and benthic invertebrates, including shrimps, crabs, gastropods and cephalopods.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | 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. 96402)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Reports of ciguatera poisoning (Ref. 55)




Human uses

Fisheries: commercial; aquarium: public aquariums
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.01324 - 0.01811), b=2.99 (2.96 - 3.02), based on LWR estimates for this species (Ref. 93245).
Trophic Level (Ref. 69278):  4.4   ±0.3 se; Based on diet studies.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (K=0.10; tm=5.5).
Vulnerability (Ref. 59153):  High to very high vulnerability (66 of 100) .
Price category (Ref. 80766):   High.