Common names from other countries

Grenadier bleu, Cola de rata azul, Макруронус новозеландский, ... more

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Gadiformes (Cods) > Macruronidae (Blue grenadiers)
Etymology: Macruronus: Greek, makros = great + Greek, onos = hake.

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

seewasser; brackwasser benthopelagisch; ozeanodrom; tiefenbereich 0 - 1000 m (Ref. 26566), usually 200 - 700 m (Ref. 9563). Subtropical; 15°S - 55°S, 111°E - 173°W (Ref. 58452)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Southwest Pacific: New Zealand and southern Australia.

Length at first maturity / Size / Gewicht / Alter

Maturity: L_m 67.5, range 65 - 70 cm
Max length : 120 cm TL Männchen/unbestimmt; (Ref. 1371); 130.0 cm TL (female); common length : 80.0 cm TL Männchen/unbestimmt; (Ref. 1371); max. veröff. Gewicht: 1.5 kg (Ref. 1371); max. veröff. Gewicht: 1.5 kg; max. veröff. Alter: 25 Jahre (Ref. 6390)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 12 - 13; Rückenflossenweichstrahlen (insgesamt) : 96 - 106; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 89 - 93; Wirbelzahl: 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).

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 Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

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

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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)

IUCN Rote Liste Status (Ref. 130435)

Nicht untersucht

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien: hoch kommerziell

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Estimates based on models

Preferred temperature (Ref. 115969): 5.8 - 12.5, mean 8 (based on 300 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00219 - 0.00690), b=2.98 (2.82 - 3.14), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 4.5 ±0.2 se; based on diet studies.

Widerstandsfähigkeit (Ref. 120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (K=0.12-0.2; tm=3-7; tmax=25; Fec = 1,000,000).

Prior r = 0.29, 95% CL = 0.19 - 0.44, Based on 3 full stock assessments.

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (66 of 100).

Climate Vulnerability (Ref. 125649): High vulnerability (61 of 100).

Preiskategorie (Ref. 80766): Medium.

Macruronus novaezelandiae (Hector, 1871)