Petrarctus brevicornis, Blue-back locust lobster
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Petrarctus brevicornis   (Holthuis, 1946)

Blue-back locust lobster

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Petrarctus brevicornis  AquaMaps  Data sources: GBIF OBIS
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Image of Petrarctus brevicornis (Blue-back locust lobster)
Petrarctus brevicornis
Picture by FAO

Classification / Noms Noms communs | Synonymes | CoL | ITIS | WoRMS

Malacostraca | Decapoda | Scyllaridae

Environnement : milieu / zone climatique / profondeur / gamme de distribution Écologie

Benthic; profondeur 60 - 504 m (Réf. 4).  Subtropical; 35°N - 21°N, 118°E - 134°E (Réf. 4)

Distribution Territories | Zones FAO | Écosystèmes | Occurrences | Introductions

Western Pacific.

Longueur à la première maturité / Taille / Poids / Âge

Maturité: Lm ?  range ? - ? cm Max length : 1.8 cm CL mâle / non sexé; (Réf. 89665); common length : 5.5 cm TL mâle / non sexé; (Réf. 4)

Description synthétique Morphologie

Carapace with 2 distinct teeth in the median line before the cervical groove (the gastric and rostral teeth), the pregastric tooth is absent. The region between the postrostral and branchial carinae with only a few tubercles and extensive smooth areas. Abdominal somites 2 to 5 with distinct elevated median longitudinal carina; the carina of the third somite is distinctly higher than that of the other somites. The exposed part of the somites without arborescent pattern, but with a wide transverse groove over the middle; behind this groove a transverse ridge extends along the posterior margin of the somite; before the groove there are tubercles and some wide side grooves. Somite 1 dorsally smooth with only an indication of a transverse groove in the extreme lateral part. Posterior margin of somites 5 and 6 not tuberculate. Fourth segment of antenna with the median oblique carina distinct but not quite straight; a row of tubercles is present on the outer half of the upper surface of the segment, tubercles are also present in the basal part of the median carina. The outer margin of the fourth segment has 3 or 4 teeth, the basal which is the largest (the apical tooth not included in these counts). The thoracic sternum is widely U-shapedly incised anteriorly; the last 4 sternites show an inconspicuous median tubercle. A dorsal fringe of hairs is present on the dactyli of pereiopods 3 to 5. Colour: dark brown above, tubercles slightly paler, sometimes with whitish areas in the branchial region and along the central part of the cervical groove. A dark blue spot in the median part of the first abdominal somite (Ref. 252).

Biologie     Glossaire (ex. épibenthique)

It has lengths of 4 to 5.5. cm, total body length; 1.3 to 1.8 cm and 1.6 to 1.8 cm (ovigerous females), carapace length (Ref. 4). Maximum depth from Ref. 99823. Occurs at a depth range from 60 to 150 m with substrates of sand or mud (Ref. 4).

Cycle de vie et comportement reproducteur Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Members of the order Decapoda are mostly gonochoric. Mating behavior: Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer.

Référence principale Références | Coordinateur | Collaborateurs

Holthuis, L.B. 1991 FAO Species Catalogue. Vol. 13. Marine lobsters of the world. An annotated and illustrated catalogue of species of interest to fisheries known to date. FAO Fish. Synop. 125(13):292p. Rome: FAO. (Réf. 4)

Statut dans la liste rouge de l'IUCN (Réf. 130435: Version 2025-2 (Global))

  Préoccupation mineure (LC) ; Date assessed: 03 December 2009

statut CITES (Réf. 108899)

Not Evaluated

CMS (Réf. 116361)

Not Evaluated

Menace pour l'homme

Utilisations par l'homme

Pêcheries: sans intérêt
FAO - Publication: search | FishSource |

Outils

Plus d'informations

Écologie trophique
Aliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Prédateurs
Écologie
Dynamique des populations
Croissance
Âges / tailles maximales
Longueur-poids rel.
Rel. longueur-longueur.
Fréquences de longueurs
Conversion de masse
Abondance
Cycle de vie
Reproduction
Maturité
Fécondité
Frai
Œufs
Développement de l'œuf
Larves
Physiologie
Consommation d'oxygène
Liées à l'homme
Timbres, pièces de monnaie, divers
Sensibilisation
Références

Sources Internet

BHL | BOLD Systems | CISTI | DiscoverLife | FAO - Publication: search | Fishipedia | GenBank (génôme, nucléotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Arbre de Vie | Wikipedia (aller à, chercher) | Zoological Record

Estimations basées sur des modèles

Vulnérabilité de la pêche
(Réf. 71543)
Low vulnerability (10 of 100).
Catégorie de prix
(Réf. 80766):
Very high.