Macruronus novaezelandiae, Blue grenadier : fisheries
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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 Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | 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 Οικολογία

; Θαλασσινό(ά); Υφάλμυρο βενθοπελαγικό; ωκεανόδρομο(ς); εύρος βάθους 0 - 1000 m (Ref. 26566), usually 200 - 700 m (Ref. 9563).   Subtropical; 15°S - 55°S, 111°E - 173°W (Ref. 58452)

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

Southwest Pacific: New Zealand and southern Australia.

Length at first maturity / Μέγεθος / Βάρος / Age

Maturity: Lm ?, range 65 - 70 cm
Max length : 120 cm TL αρσενικό/απροσδιόριστο; (Ref. 1371); 130.0 cm TL (female); common length : 80.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 1371); μεγ. δημοσιευμένο βάρος: 1.5 kg (Ref. 1371); μεγ. δημοσιευμένο βάρος: 1.5 kg; μεγ. αναφερόμενη ηλικία: 25 έτη (Ref. 6390)

Short description Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά): 12 - 13; Μαλακές ραχιαίες ακτίνες (συνολικά): 96-106; Εδρικές άκανθες 0; Μαλακές εδρικές ακτίνες: 89 - 93; Σπόνδυλοι: 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).

Βιολογία     Γλωσσάρι (π.χ. 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 Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες

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

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

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 Red List Status (Ref. 123251)


CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

αλιεία: πολύ εμπορικό
FAO - αλιεία: landings; Publication: search | FIRMS - Stock assessments | FishSource | Η θάλασσα γύρω μας

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Estimates based on models

Preferred temperature (Ref. 115969): 5.8 - 12.5, mean 8 °C (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=0.00389 (0.00221 - 0.00684), b=2.98 (2.82 - 3.14), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  4.5   ±0.2 se; based on diet studies.
Generation time: 5.5 (4.7 - 8.9) years. Estimated as median ln(3)/K based on 17 growth studies.
Ελαστικότητα (Ref. 120179):  Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (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.
Vulnerability (Ref. 59153):  High to very high vulnerability (66 of 100) .
Price category (Ref. 80766):   Medium.
Nutrients (Ref. 124155):  Calcium = 57.2 [24.0, 125.3] mg/100g ; Iron = 1.07 [0.54, 1.96] mg/100g ; Protein = 16.8 [14.5, 18.9] % ; Omega3 = 0.418 [0.176, 1.011] g/100g ; Selenium = 37.7 [14.7, 93.4] μg/100g ; VitaminA = 29.6 [7.0, 118.2] μg/100g ; Zinc = 0.762 [0.472, 1.280] mg/100g (wet weight); based on nutrient studies.