Mixines (mixinos) (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.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
marino demersal; no migratorio; rango de profundidad 10 - 350 m (Ref. 31276). Deep-water; 30°S - 42°S
Southeast Pacific: Chile (from Coquimbo to Puerto Montt, Ref. 34263).
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 93.0 cm TL macho / no sexado; (Ref. 31276)
Descripción breve
Claves de identificación | Morfología | Morfometría
TBK: demerspelag.
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | 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 ).
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)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Pesquerías: sin interés
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00389 (0.00212 - 0.00715), b=2.92 (2.74 - 3.10), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Nivel trófico (Referencia 69278) |
4.4 ±0.7 se; based on size and trophs of closest relatives |
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Generation time |
8.9 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Resiliencia (Referencia 120179) |
Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Fec assumed to be <100). |
Vulnerabilidad pesquera (Ref. 59153) |
High vulnerability (62 of 100). 🛈 |
Nutrientes (Ref. 124155) |
Calcium = 10.4 [2.7, 33.2] mg/100g; Iron = 0.333 [0.119, 0.906] mg/100g; Protein = 2.72 [0.00, 6.54] %; Omega3 = 0.259 [0.101, 0.676] g/100g; Selenium = 13.2 [3.9, 44.3] μg/100g; VitaminA = 9.6 [2.0, 44.9] μg/100g; Zinc = 0.307 [0.153, 0.589] mg/100g (wet weight); |