Myxini (миксины) (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); pequenoi: In honor of German Pequeño Reyes (b. 1941), Universidad Austral de Chile, for his work on Chilean fishes and for providing holotype (See ETYFish).
Eponymy: Dr German Enrique Pequeño Reyes (d: 1941) was Professor of Zoology at and Director of the Instituto de Zoología, Ernst F Kilian, Universidad Austral de Chile (1973–2007). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
экология
морской батидемерсальный; немигрирующий; пределы глубины 185 - 215 m (Ref. 31276). Deep-water
Southeast Pacific: known only from type material off Valdivia, Chile.
Size / Вес / Возраст
Maturity: Lm ? range ? - ? cm
Max length : 18.3 cm TL самец/пол неопределен; (Ref. 31276)
Maximum depth from Ref. 58018.
Life cycle and mating behavior
половая зрелость | размножение | нерест | икра | Fecundity | 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 ).
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: Version 2024-2)
Угроза для людей
Harmless
Использование человеком
дополнительная информация
инструменты
Специальные отчеты
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Estimates based on models
Preferred temperature (Ref.
123201): 9.4 - 10.2, mean 9.7 °C (based on 3 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00115 (0.00044 - 0.00298), b=3.03 (2.80 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.6 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref.
120179): низкий, минимальное время удвоения популяции 4.5-14 лет (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
