Hymenogadus gracilis (Gilbert & Hubbs, 1920)

Slender membranehead
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Image of Hymenogadus gracilis (Slender membranehead)
Hymenogadus gracilis
Picture by Schwarzhans, W.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Gadiformes (Cods) > Macrouridae (Grenadiers or rattails) > Macrourinae
  More on authors: Gilbert & Hubbs.

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

Marine; bathypelagic; depth range 300 - 618 m (Ref. 98298).   Deep-water

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

Circumglobal, widespread. North Atlantic Ocean (both sides, including the Mediterranean Sea), the Pacific Ocean (off Japan, Philippines, the Sala-y-Gomez Ridge) and the Indian Ocean (east and west coasts of Australia and east coast of Africa).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 39.6 cm TL male/unsexed; (Ref. 115012); max. published weight: 235.60 g (Ref. 115012)

Short description Morphology | Morphometrics

This species is distinguished by the following set of characters: spinous first dorsal fin ray weakly serrated, more distinct near tip of ray; pelvic fin rays 7-10, usually 8-9; gill rakers first arch (outer/inner) 8-12/14-18; large barbel, its length 20-30% HL; short snout length 16-26% HL; very narrow suborbital 4-8% HL; upper jaw length 43-52% HL; a row of enlarged melanophores along lateral mid-line of the tail; cylindrical body (Ref. 97189).

Biology     Glossary (e.g. epibenthic)

Feeds on planktonic crustaceans (Ref. 6187).

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

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

McMillan, P. and T. Iwamoto, 2014. Descriptions of four species of grenadier fishes of the genera Hymenocephalus and Hymenogadus (Teleostei, Gadiformes, Macrouridae) from the New Zealand region and Tasman Sea, including two new species of Hymenocephalus. Zootaxa 3856:117-134.. (Ref. 97189)

IUCN Red List Status (Ref. 119314)

  Data deficient (DD) ; Date assessed: 02 February 2015

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO(Publication : search) | FishSource |

More information

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 2.3 - 13, mean 9.9 (based on 221 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00145 (0.00073 - 0.00286), b=3.22 (3.05 - 3.39), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic Level (Ref. 69278):  3.1   ±0.30 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3).
Vulnerability (Ref. 59153):  Moderate to high vulnerability (46 of 100) .