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Macruronus novaezelandiae (Hector, 1871)

Blue grenadier
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Macruronus novaezelandiae   AquaMaps   Data sources: GBIF OBIS
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Macruronus novaezelandiae
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Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinoptérygiens (poissons à nageoires rayonnées) > Gadiformes (Cods) > Merlucciidae (Merluccid hakes) > Merlucciinae
Etymology: Macruronus: Greek, makros = great + Greek, onos = hake.

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

; marin; saumâtre benthopélagique; océanodrome; profondeur 0 - 1000 m (Ref. 26566), usually 200 - 700 m (Ref. 9563).   Subtropical; 15°S - 55°S, 111°E - 173°W (Ref. 58452)

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Southwest Pacific: New Zealand and southern Australia.

Length at first maturity / Taille / Poids / Âge

Maturity: Lm ?, range 65 - 70 cm
Max length : 120 cm TL mâle / non sexé; (Ref. 1371); 130.0 cm TL (female); common length : 80.0 cm TL mâle / non sexé; (Ref. 1371); poids max. publié: 1.5 kg (Ref. 1371); poids max. publié: 1.5 kg; âge max. reporté: 25 années (Ref. 6390)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 12 - 13; Rayons mous dorsaux (Total): 96-106; Épines anales 0; Rayons mous anaux: 89 - 93; Vertèbres: 78 - 81. Dorsal surface silvery, with a purple or blue-green tinge; plank and belly silvery; fins darker. Body very elongate and compressed with a tapering tail, dorsal and anal fins confluent with the caudal fin (Ref. 33856).

Biologie     Glossaire (ex. epibenthic)

Appear to live usually on or near the bottom, but may occasionally move up into mid-waters. Large adult fish generally occur deeper than 400 m, while juveniles may be found in shallower water (Ref. 9072), more commonly found in large estuaries and bays, and may even enter freshwaters (Ref. 1371). Juvenile specimens and especially adults belonging to the American subspecies, have been caught from the coastal zone to 110 m (Ref. 58452). Form schools. Feed primarily on lantern fishes. In New Zealand, it feeds in midwater on small fish, crustaceans and squid. Oviparous, spawn 1 million eggs on the average which are released all at one time (Ref. 6390). Utilized fresh and frozen; can be steamed, fried, cooked in microwave and baked (Ref. 9988).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Female blue grenadier produce about 1 million eggs on average, which are all released at once (Ref. 6390).

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990. FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)

Statut dans la liste rouge de l'IUCN (Ref. 119314)

  Non évalué 

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

Pêcheries: hautement commercial
FAO(pêcheries: production; publication : search) | FIRMS (Stock assessments) | FishSource | Sea Around Us

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Sources Internet

Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(génôme, nucléotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | SeaLifeBase | Arbre de Vie | Wikipedia(aller à, chercher) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 5.8 - 12.5, mean 8 (based on 300 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00238 - 0.00580), b=2.99 (2.85 - 3.13), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Niveau trophique (Ref. 69278):  4.5   ±0.2 se; Based on diet studies.
Résilience (Ref. 69278):  Faible, temps minimum de doublement de population : 4,5 à 14 années (K=0.12-0.2; tm=3-7; tmax=25; Fec = 1,000,000).
Prior r = 0.31, 95% CL = 0.20 - 0.49, Based on 4 stock assessments.
Vulnérabilité (Ref. 59153):  High to very high vulnerability (66 of 100) .
Catégorie de prix (Ref. 80766):   Medium.