Eptatretus polytrema, Fourteen-gill hagfish

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Eptatretus polytrema (Girard, 1855)

Fourteen-gill hagfish
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Eptatretus polytrema   AquaMaps   Data sources: GBIF OBIS
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Image of Eptatretus polytrema (Fourteen-gill hagfish)
No image available for this species;
drawing shows typical species in Myxinidae.

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

Myxini (Kieferlose) (hagfishes) > Myxiniformes (Hagfishes) > Myxinidae (Hagfishes) > Eptatretinae
Etymology: Eptatretus: hepta (Gr.), seven; tretos (Gr.), perforated (i.e., with holes), referring to seven gill apertures on what would later be described as Homea banksii (=E. cirrhatus) [range within genus is 6-14 pairs of gill apertures]. (See ETYFish);  polytrema: poly- (Gr.), many; trema (Gr.), hole, referring to 16 gill apertures per side. (See ETYFish).
More on author: Girard.

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

; seewasser demersal; standorttreu; tiefenbereich 10 - 350 m (Ref. 31276). Deep-water; 30°S - 42°S

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

Southeast Pacific: Chile (from Coquimbo to Puerto Montt, Ref. 34263).

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 93.0 cm TL Männchen/unbestimmt; (Ref. 31276)

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Copulatory organ absent. The gonads of hagfishes are situated in the peritoneal cavity. The ovary is found in the anterior portion of the gonad, and the testis is found in the posterior part. The animal becomes female if the cranial part of the gonad develops or male if the caudal part undergoes differentiation. If none develops, then the animal becomes sterile. If both anterior and posterior parts develop, then the animal becomes a functional hermaphrodite. However, hermaphroditism being characterised as functional needs to be validated by more reproduction studies (Ref. 51361 ).

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Fernholm, B., 1998. Hagfish systematics. p. 33-44. In J.M. Jørgensen, J.P. Lomholt, R.E. Weber and H. Malte (eds.) The biology of hagfishes. Chapman & Hall, London. 578 p. (Ref. 31276)

IUCN Rote Liste Status (Ref. 125652)

  Daten mangelhaft (DD) ; Date assessed: 13 November 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: nicht kommerziell
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Internet Quellen

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: Genom, 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: Gehe zu, Suchen | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 10.5 - 11.8, mean 11.1 °C (based on 8 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00213 - 0.00709), b=2.92 (2.75 - 3.09), in cm total length, based on LWR estimates for species & Subfamily-BS (Ref. 93245).
Trophic level (Ref. 69278):  4.6   ±0.6 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref. 120179):  niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  High vulnerability (57 of 100) .
Climate Vulnerability (Ref. 125649):   (0 of 100) .
Nutrients (Ref. 124155):  Calcium = 12.4 [2.6, 35.5] mg/100g ; Iron = 0.219 [0.076, 0.519] mg/100g ; Protein = 3.81 [0.37, 7.47] % ; Omega3 = 0.276 [0.120, 0.636] g/100g ; Selenium = 17.7 [2.3, 54.2] μg/100g ; VitaminA = 14.8 [3.6, 62.4] μg/100g ; Zinc = 0.327 [0.175, 0.833] mg/100g (wet weight);