Eptatretus wayuu Mok, Saavedra-Díaz & Acero P., 2001
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drawing shows typical species in Myxinidae.
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drawing shows typical species in Myxinidae.
Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa
Myxini (slijmprikken) (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); wayuu: Named for the Wayuu aborigines who live on the Guajira Peninsula of Colombia, type locality (See ETYFish).
Eponymy: These species are named after the Wayuu, an aboriginal people who live on the coastal region of the Guajira Peninsula (northern Colombia/north-west Venezuela), the type locality. (Ref. 128868), visit book page.
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); wayuu: Named for the Wayuu aborigines who live on the Guajira Peninsula of Colombia, type locality (See ETYFish).
Eponymy: These species are named after the Wayuu, an aboriginal people who live on the coastal region of the Guajira Peninsula (northern Colombia/north-west Venezuela), the type locality. (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie
marien bathydemersaal; standvastig; diepte ? - 306 m (Ref. 41105). Deep-water
Verspreiding Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri
Western Atlantic: known only from the Guajira coast near Puerto Bolivar, Colombia, Caribbean Sea.
Grootte / Gewicht / Leeftijd
Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie
Ventral aorta bifurcated into left and right branches at gill pouches one (anteriormost pouch) or two versus bifurcated at the fifth or sixth gill pouches in congeners and P. springeri. Five branchial apertures arranged in a straight line; lengths of efferent branchial ducts unequal with the first duct about twice the length of the last duct. Last branchial duct confluent with pharyngocutaneous duct, last aperture on the left side much larger than other apertures. Gill apertures 5. Slime pores: prebranchial 24; branchial 2; trunk 38-40; tail 9; total 73-75. Cylindrical body, laterally compressed toward spatulate tail. Caudal and ventral finfold well developed. Head, body, tail and finfold pink when fresh, dark violet in alcohol; eyespots faint, branchial region much lighter colored than other parts of the body; gill aperture margins pale (Ref. 41105).
Body shape (shape guide): eel-like; Cross section: circular.
Body shape (shape guide): eel-like; Cross section: circular.
Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | 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 ).
Hoofdreferentie
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Mok, H.-K., L.M. Saavedra-Diaz and A.P. Acero, 2001. Two new species of Eptatretus and Quadratus (Myxinidae, Myxiniformes) from the Caribbean Coast of Colombia. Copeia 2001(4):1026-1033. (Ref. 41105)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Onvoldoende gegevens (DD) ; Date assessed: 11 November 2009
CITES
Not Evaluated
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
FAO - Publication: search | FishSource |
Meer informatie
Trofische ecologie
Voedsel (prooien)
Dieetsamenstelling
Voedselconsumptie
Voedselrantsoenen
Predatoren
Voedsel (prooien)
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Voedselconsumptie
Voedselrantsoenen
Predatoren
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Lengtefrequenties
Massaconversie
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Lengte-lengte rel.
Lengtefrequenties
Massaconversie
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Abundantie
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Fecunditeit
Paaien
Paaibestanden
Eieren
Ontwikkeling van de eieren
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Larvale populatiedynamiek
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Ontwikkeling van de eieren
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Larvale populatiedynamiek
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genoom
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genoom
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Genetische diversiteit
Menselijk gerelateerd
Aquacultuursystemen
Aquacultuurprofielen
Kweeklijnen
Ciguatera gevallen
Postzegels, munten, diversen.
Aquacultuursystemen
Aquacultuurprofielen
Kweeklijnen
Ciguatera gevallen
Postzegels, munten, diversen.
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Schattingen op basis van modellen
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Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00204 (0.00095 - 0.00440), b=2.93 (2.74 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
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Trofisch niveau (Ref. 69278) |
3.9 ±0.7 se; based on size and trophs of closest relatives |
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Weerstandsvermogen (Ref. 120179) |
laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100). |
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Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (24 of 100). 🛈 |