Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

Μυξίνοι (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); chinensis: -ensis, Latin suffix denoting place: China, specifically South China Sea off southeastern Taiwan, type locality. (See ETYFish).

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

Θαλασσινό(ά) βαθύβιο(ς); μη μεταναστευτικό(ά); εύρος βάθους ? - 600 m (Ref. 31276). Deep-water

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

Western Pacific: South China Sea.

Μέγεθος / Βάρος / Age

Maturity: L_m ? range ? - ? cm
Max length : 37.5 cm TL αρσενικό/απροσδιόριστο; (Ref. 31276)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

The species has 6 pairs of gill pouches and apertures. Gill apertures in a straight line, not crowded. Eyespots prominent. Fused cusps 3/3, 8-10 unicusps each row, total cusps 46-52. Slime pores: prebranchial 15-19 + branchial 4-5 + trunk 42-45 + tail 11-14. It is distinguished from the other 3 Asian species on Eptatretus by having 6 rather than 7 or 8 pairs of gill pouches (Ref. 51420).

Maximum depth from Ref. 58018.

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

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 ).

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

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 Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 13 November 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Περισσότερες πληροφορίες

Trophic ecology
Τροφικά αντικείμενα
Diet compositions
Food consumptions
Food rations
Θηρευτές

Ecology
Οικολογία

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances

Life cycle
Αναπαραγωγή
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Προνύμφες
Δυναμική προνυμφών

Distribution
Χώρες
Περιοχές FAO
Οικοσυστήματα
Παρουσίες
Εισαγωγές
BRUVS - Videos

Anatomy
Gill areas
Εγκέφαλοι
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Κολυμβητικός τύπος
Swimming speeds
Visual pigment(s)
Ήχοι ψαριών
Diseases / Parasites
Toxicities (LC50s)

Genetics
Γενετική
Electrophoreses
Heritabilities

Human related
Aquaculture systems
Προφίλ υδατοκαλλιεργειών
Στελέχοι
Ciguatera cases
Stamps, coins, misc.

Outreach
Συνεργάτες

Taxonomy
Κοινά ονόματα
Συνώνυμα
Μορφολογία
Μορφομετρία
Φωτογραφίες

References
Αναφορές

Εργαλεία

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Σημειακά στοιχεία | Κοινά ονόματα | Photos

Διαδικτυακές πηγές

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).

Τροφικό Επίπεδο (Ref. 69278): 4.1 ±0.7 se; based on size and trophs of closest relatives

Ελαστικότητα (Ref. 120179): Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (28 of 100).

Eptatretus chinensis Kuo & Mok, 1994