United States (contiguous states) country information

Common names: Black hagfish, Black hagfish, Bruja pecosa
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Recorded from a depth of 156 m in Washington. Found deeper in California (Ref. 6885).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983
National Database:

Common names from other countries

Myxine noire, Bruja pecosa, Mixinido negro, ... more

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

Myxini (миксины) (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); deani: In honor of American ichthyologist Bashford Dean (1867-1928), American Museum of Natural History, for his work on the embryology of E. stoutii. (See ETYFish).
More on authors: Evermann & Goldsborough.

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

морской батидемерсальный; немигрирующий; пределы глубины 103 - 2743 m (Ref. 31276). Deep-water; 60°N - 27°N, 148°W - 114°W

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

Eastern Pacific: southeastern Alaska to central Baja California, Mexico.

Length at first maturity / Size / Вес / Возраст

Maturity: L_m 38.0 range ? - ? cm
Max length : 63.5 cm TL самец/пол неопределен; (Ref. 96339)

Краткое описание определительные ключи | морфология | морфометрия

колючие лучи спинного плавника (общее число) : 0; членистые (мягкие) лучи спинного плавника (общее число) : 0; колючие лучи анального плавника: 0; членистые (мягкие) лучи анального плавника: 0. No true fins - one dorsal finfold, far back, median, very low, continuous with the caudal; caudal moderately broad, and round with ray-like markings; ventral finfold very low, origin somewhat posterior to last gill aperture, extending to anus (Ref. 6885). Prune colored, preserved specimens black; frequently piebald with light spots; the very edges of caudal and ventral finfolds may be light colored (Ref. 6885).

Inhabits mud bottoms (Ref. 2850). Minimum depth reported at 103 m (Ref. 80811).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

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 ). In one study (Ref. 40710), hermaphroditism is exhibited by only 0.2% of the individuals examined.

Основная ссылка Upload your references | ссылки | координатор | соавторы

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)

Статус Красного Списка МСОП (Ref. 130435)

Нехватка данных (DD) ; Date assessed: 12 November 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

Harmless

Использование человеком

рыболовство: интереса не представляет

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Estimates based on models

Preferred temperature (Ref. 115969): 3.2 - 5.5, mean 4.3 (based on 54 cells).

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

Bayesian length-weight: a=0.00234 (0.00139 - 0.00396), b=2.93 (2.78 - 3.08), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 3.8 ±0.52 se; based on food items.

устойчивость к внешним воздействиям (Ref. 120179): низкий, минимальное время удвоения популяции 4.5-14 лет (Fec = 14).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (45 of 100).

Eptatretus deani (Evermann & Goldsborough, 1907)