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Myxini (hagfishes) (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); octatrema: oct[o]- (L., okto in Gr.), eight; trema, hole, referring to eight gill apertures per side. (See ETYFish).
More on author: Barnard.

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

laut dasar (demersal); nir-ruaya; kisaran kedalaman 46 - 73 m (Ref. 31276). Subtropical; 35°S -

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | Point map | Introduksi | Faunafri

Southeast Atlantic: known from the holotype taken from the Agulhas Bank, South Africa.

Size / Weight / umur

Maturity: L_m ? range ? - ? cm
Max length : 30.0 cm TL jantan/; (Ref. 6573)

Life cycle and mating behavior Maturities | Reproduksi, perkembang biakan | Spawnings | Egg(s) | Fecundities | Larva

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 ).

rujukan utama Upload your references | Acuan | Koordinator | mitra

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)

Status IUCN Red List (Ref. 130435)

sangat terancam (CR) (B1ab(iii)); Date assessed: 10 November 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

Harmless

penggunaan manusia

FAO - Publication: search | FishSource |

informasi lanjut

Trophic ecology
Bahan makanan
Diet compositions
Food consumptions
Food rations
Pemangsa

Ecology
Ekologi

Population dynamics
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Length-weight rel.
Length-length rel.
ukuran frekuensi
Mass conversions
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Abundances

Life cycle
Reproduksi, perkembang biakan
Maturities
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Spawnings
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Egg(s)
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Larva
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Distribution
Negara-negara
Daerah-daerah FAO
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Anatomy
Gill areas
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Otoliths

Physiology
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profil budidaya air
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References
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laporan khas

semak penyelenggaraan akuarium | semak helaian fakta spesis | semak helaian fakta aqulcalture

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Sumber internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00204 (0.00092 - 0.00452), b=2.93 (2.73 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.0 ±0.7 se; based on size and trophs of closest relatives

Daya lenting (Ref. 120179): Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Low vulnerability (20 of 100).

Eptatretus octatrema (Barnard, 1923)