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Mixini (Missine) (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); alastairi: In honor of Alastair Graham (b. 1964), Fish Collection Manager, CSIRO (Commonwealth Scientific and Industrial Research Organisation), Canberra, Australia, for help and hospitality offered to second author (See ETYFish).
Eponymy: Alastair Graham (d: 1964) was honoured for help and hospitality offered to the second author. (See Graham, also see Al Graham) (Ref. 128868), visit book page.

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

marino batidemersale; distribuzione batimetrica 380 - 550 m (Ref. 85052). Tropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Eastern Indian Ocean: Western Australia.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 49.5 cm TL maschio/sesso non determinato; (Ref. 85052)

Short description Chiavi di identificazione | Morfologia | Morfometria

This species differs from all its congeners except for the western Atlantic species (E. mendozai, E. minor and E. multidens) by possessing 6 pairs of gill pouches and three-cusp multicusps on the anterior and posterior rows of cusps. It differs from E. mendozai in number of total cusps (48-56 vs. 56-61), trunk pores (50-55 vs. 48-48) and total pores (83-88 vs. 77-82; from E. minor in number of prebranchial pores (13-16 vs. 15-18), trunk pores (50-55 vs. 41-48) and total pores (83-88 vs. 74-82); and from E. multidens by its number of tail pores (11-13 vs. 15-16) and total pores (83-88 vs. 88-93) (Ref. 85052).

Iteroparous (Ref. 94918).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Iteroparous (Ref. 94918).

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Mincarone, M.M. and B. Fernholm, 2010. Review of the Australian hagfishes with description of two new species of Eptatretus (Myxinidae). J. Fish Biol. 77(4):779-801. (Ref. 85052)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 20 December 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesca: di nessun interesse

FAO - Publication: search | FishSource |

Informazioni ulteriori

Trophic ecology
Prede
Alimentazione
Consumo di cibo
Food rations
Predatori

Ecology
Ecologia

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Reclutamento
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Life cycle
Riproduzione
Maturità
Maturity/Gills rel.
Fecundity
Deposizione
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Larve
Dinamica popolazioni larvali

Distribution
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Anatomy
Area branchiale
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Physiology
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Visual pigments
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Genetics
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Human related
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Stamps, coins, misc.

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Fonti Internet

Estimates based on models

Preferred temperature (Ref. 123201): 1.3 - 10.6, mean 5.3 °C (based on 12 cells).

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

Bayesian length-weight: a=0.00204 (0.00094 - 0.00444), b=2.93 (2.74 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.2 ±0.7 se; based on size and trophs of closest relatives

Resilienza (Ref. 120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (40 of 100).

Eptatretus alastairi Mincarone & Fernholm, 2010