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🌊 Marine 🌡️ Subtropical

Blue grenadier

Macruronus novaezelandiae Hector, 1871
Max Length
120 cm
Max Weight
1.5 kg
Lifespan
25 yrs
Trophic Level
4.5
Depth
0–1000 m
Climate
Subtropical
Resilience
Low
Vulnerability
66.00/100
Typical Length
80 cm
Depth Zone
-

📖 Overview

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 , more commonly found in large estuaries and bays, and may even enter freshwaters . Juvenile specimens and especially adults belonging to the American subspecies, have been caught from the coastal zone to 110 m . 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 . Utilized fresh and frozen; can be steamed, fried, cooked in microwave and baked .

Scientific Name
Macruronus novaezelandiae
Authority
Hector, 1871
Habitat
Marine
Climate
Subtropical
Body Shape
Elongated
Max Length
120 cm
Max Weight
1.5 kg
Lifespan
25 years
Depth Range
0–1000 m
Trophic Level
4.5
Resilience
Low
Vulnerability
66.00/100
Migration
Oceanodromous
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 12 - 13; Dorsal soft rays (total): 96 - 106; Anal spines: 0; Anal soft rays: 89 - 93; Vertebrae: 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 .: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Blue grenadier is currently being reviewed.

🦐 Diet

Diet information for Blue grenadier is currently being compiled.

🥚 Reproduction

Size at Maturity
67.5cm TL

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

🌍 Habitat & Distribution

Marine; brackish; benthopelagic; oceanodromous; depth range 0 - 1000 m , usually 200 - 700 m . Subtropical; 15°S - 55°S, 111°E - 173°W Southwest Pacific: New Zealand and southern Australia.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish
Migration
Oceanodromous
Trophic Level
4.5±0.2
🐠 Schooling
Food Items

lantern fishes

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L2.98 (TL)
Max TL
120cm
Max Weight
1,500g
Dorsal Spines
13
Dorsal Rays
101
Anal Rays
91
Vertebrae
80

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
66.00/100
High vulnerability
Trophic Level
4.5
Apex / Top predator
Body Shape
Elongated
Climate Zone
Subtropical
Described By
Hector, 1871

🌐 Names & Taxonomy

Language Common Names
🇬🇧English blue grenadier · Blue Grenidier · blue hake · Grenadier · New Zealand Whip-tail · New Zealand whiptail · Patagonian whiphake · tailed hake · whiptail
🌍CES treskovník novozélandský · treskovník patagonský
🇩🇰Danish Newzealandsk langhale · Patagonisk langhale
🇩🇪German Langschwanz-Seehecht · Langschwanzseehecht
🇫🇷French grenadier bleu · grenadier patagonienne · merluche patagonienne
🇯🇵Japanese dekora · hoki · デコラ · ホキ
🌍MRI hoki
🇳🇱Dutch blauwe grenadier
🇵🇱Polish miruna nowozelandzka
🇷🇺Russian Новозеландский макруронус
🌍SLV modri repak
🇪🇸Spanish argentino · huaica · huelca · huilca · merluza azul · merluza de cola · merluza de cola de rata · merluza hoki

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 14 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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