Mixines (mixinos) (hagfishes) >
Myxiniformes (Hagfishes) >
Myxinidae (Hagfishes) > Myxininae
Etymology: Myxine: Ancient Greek word for a slimy fish: myxa, slime; -inus, one who, referring to copious amounts of slime produced by M. glutinosa (See ETYFish); glutinosa: Latin for viscous or sticky, referring to its seeming ability to turn water into slime (See ETYFish).
More on author: Linnaeus.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
marino batidemersal; no migratorio; rango de profundidad 20 - 1200 m (Ref. 117245), usually 27 - 460 m (Ref. 119696). Boreal; 2°C - 13°C (Ref. 119696); 72°N - 24°N, 89°W - 41°E
North Atlantic: Murmansk to the Mediterranean Sea; Greenland to USA. Absent in eastern Mediterranean and Black Sea. Only hagfish in the Northeast Atlantic.
Longitud en la primera madurez / Tamaño / Peso / Edad
Madurez: Lm ?, range 25 - ? cm
Max length : 95.0 cm TL macho / no sexado; (Ref. 119696); common length : 30.0 cm TL macho / no sexado; (Ref. 35388); common length :40 cm TL (female)
Descripción breve
Claves de identificación | Morfología | Morfometría
Jawless mouth, single nasal aperture, only a single pair of external gill openings, no operculum or covering fold of skin. Grayish or reddish brown above, either plain. Variations in color correspond to the color of the sea bottom.
Body shape (shape guide): eel-like.
Benthic with reported depths to 782 off Greenland; 960 m in Northwestern Atlantic; and 1,100 m off Norway (Ref. 119696). Found on muddy bottoms where they hide in the mud. Slime is used for defense. Feeds chiefly on dead and dying fish of varying species by boring into the body and consuming viscera and musculature. Chiefly nocturnal. Its eggs are few in number about 19-30 and large (20-25 mm), the horny shell has a cluster of anchor-tipped filaments at each end.
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 ). Probably breed throughout the year in deep water (Ref. 35388).
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=0.00115 (0.00044 - 0.00300), b=3.03 (2.80 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Nivel trófico (Referencia 69278) |
4.5 ±0.0 se; based on diet studies. |
Resiliencia (Referencia 120179) |
Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Fec= 20-30). |
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Rate of population increase |
Prior r = 0.10, 95% CL = 0.07 - 0.15, Based on 1 full stock assessment. |
Vulnerabilidad pesquera (Ref. 59153) |
Moderate to high vulnerability (51 of 100). 🛈 |
Vulnerabilidad climática (Ref. 125649) |
Moderate vulnerability (38 of 100). 🛈 |
Nutrientes (Ref. 124155) |
Calcium = 7.79 [2.08, 25.45] mg/100g; Iron = 0.278 [0.095, 0.782] mg/100g; Protein = 2.26 [0.00, 6.14] %; Omega3 = 0.301 [0.116, 0.790] g/100g; Selenium = 18.8 [5.5, 64.6] μg/100g; VitaminA = 11 [2, 52] μg/100g; Zinc = 0.281 [0.133, 0.569] mg/100g (wet weight); |