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Macrourus berglax Lacepede, 1801
ONION-EYE GRENADIER
Roughhead Grenadier

Life   Vertebrata   Fish   Macrouridae   Macrourus


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Macrourus berglax, Roughhead grenadier : fisheries
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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Macrourus berglax Lacepède , 1801

Roughhead grenadier Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Macrourus berglax   AquaMaps   Data sources: GBIF OBIS
Upload your photos  and  videos
Pictures | Google image Image of Macrourus berglax (Roughhead grenadier) Macrourus berglax
Picture by Orlov, A.

Classification / Names Common names | Synonyms | Catalog of Fishes( genus , species ) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Gadiformes (Cods) > Macrouridae (Grenadiers or rattails)
Etymology: Macrourus: Greek, makroura = great tail (Ref. 45335 ) .
More on author: Lacepède .

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

Marine; benthopelagic; non-migratory; depth range 100 - 1000 m (Ref. 1371 ), usually 300 - 500 m (Ref. 54573 ). Temperate; 0°C - 4°C (Ref. 1371 ); 82°N - 37°N, 95°W - 61°E (Ref. 54573 )

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

North Atlantic: Norfolk Canyon and George Bank north to Labrador, Davis Strait, eastern and western Greenland, Iceland, and from the Irish Atlantic slope north to Faeroe Islands, Norwegian coast, to Spitzbergen, and to the Barents Sea.

Length at first maturity / Size / Weight / Age

Maturity: L m 54.3   range ? - ? cm
Max length : 110 cm TL male/unsexed; (Ref. 35388 ); max. reported age: 25 years (Ref. 1371 )

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Anal spines : 0. Snout short, rather strongly pointed; mouth small, inferior. Underside of head almost entirely naked. Pyloric caeca about 19 or 20. Overall color is gray, darker ventrally on trunk; anal fin dark-edged, first dorsal and pectoral fins dusky (Ref. 1371 ). Front end of dorsal fin spine is serrated (Ref. 35388 ).

Biology     Glossary (e.g. epibenthic)

Epibenthic, in deep waters down to 2740 (Ref. 58426 ). Adults are commonly found in about 300-500 m depth. Temperature preferences appear to range from about 1-4°C, although bottom temperatures below 0°C have been recorded at capture depths. Amphipods predominate in the diet, although polychaetes and various natant crustaceans are also important. Also feed on bivalves, isopods, echinoderms (notably ophiuroids), and ctenophores (Ref. 1371 ). Batch spawner (Ref. 51846 ).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Iwamoto, Tomio | Collaborators

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. 130435 )

    Not Evaluated  

CITES

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial FAO - Fisheries: landings , species profile ; Publication: search | FIRMS - Stock assessments | FishSource | Sea Around Us

More information

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes : genus , species | DiscoverLife | ECOTOX | FAO - Fisheries: landings , species profile ; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome , nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go , Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201 ): 0.8 - 7, mean 3.2 °C (based on 434 cells). Phylogenetic diversity index (Ref. 82804 ):  PD 50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00398 (0.00248 - 0.00639), b=3.19 (3.05 - 3.33), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245 ). Trophic level (Ref. 69278 ):  3.8   ±0.49 se; based on food items. Generation time: 28.2 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. Resilience (Ref. 120179 ):  Low, minimum population doubling time 4.5 - 14 years (tm=15; tmax=25; Fec=25,000). Prior r = 0.32, 95% CL = 0.20 - 0.50, Based on 1 stock assessment. Fishing Vulnerability (Ref. 59153 ):  High to very high vulnerability (75 of 100). Climate Vulnerability (Ref. 125649 ):  Moderate vulnerability (41 of 100). Price category (Ref. 80766 ):   Medium . Nutrients (Ref. 124155 ):  Calcium = 12.2 [5.7, 24.0] mg/100g; Iron = 0.198 [0.103, 0.362] mg/100g; Protein = 16.6 [14.5, 18.7] %; Omega3 = 0.328 [0.147, 0.688] g/100g; Selenium = 32.3 [13.1, 73.1] μg/100g; VitaminA = 16.5 [3.6, 76.4] μg/100g; Zinc = 0.546 [0.348, 0.859] mg/100g (wet weight); based on nutrient studies.

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Updated: 2024-03-29 01:30:21 gmt
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