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> Saccopharyngiformes (Swallowers and gulpers) > Monognathidae (Onejaws)
Etymology: Monognathus: Greek, monos = one + Greek, gnathos = jaw (Ref. 45335); bertini: Named for Leon Bertin in recognition of his pioneer contributions to the systematics of this family.
Eponymy: Dr Léon Bertin (1896–1954) was a French zoologist and ichthyologist at the Muséum National d’Histoire Naturelle, Paris and a noted scientific illustator. [...] (Ref. 128868), visit book page.
More on authors: Bertelsen & Nielsen.

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

समुद्री बैथीपिलाजिक. Deep-water

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Northeast and Southeast Atlantic. Also known from the Southwest Pacific.

आकार / वज़न / Age

Maturity: L_m ? range ? - ? cm
Max length : 10.3 cm TL पुल्लिंग / अलिंग; (Ref. 34506)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 91 - 98; ऐनल सौफट रेज़: 43 - 58. M. bertini differs from all other species of the genus by the great distance between anal fin origin and anus (13-19 myomeres). It is further distinguished by the following combination of characters: head short, snout relatively long, skull length 3.6-4.9% TL, rostral fang with dorsal profile slightly convex forming an almost straight line with frontal part of skull, dorsal fin origin above myomere number 5-7, pectoral fin 5.3-10.5% TL and no lateral, subdermal spots of pigmentation (Ref. 34506).

All specimens were caught in the water column far above the bottom (Ref. 34506).

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा

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Bertelsen, E. and J.G. Nielsen, 1987. The deep sea eel family Monognathidae (Pisces, Anguilliformes). Steenstrupia 13(4):141-198. (Ref. 34506)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 11 October 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

अधिक जानकारी

Trophic ecology
खाद्य पदार्थ
संघटक आहार
आहार खपत
Food rations
परभक्षी

Ecology
पारिस्थितिकी

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
भर्ती
बहुतायत

Life cycle
पुनरुत्पत्ति
परिपक्व अवधि
Maturity/Gills rel.
Fecundity
मछलीऔ का अंडे देना
Spawning aggregations
अंडे
Egg development
लार्वा
लारवल गतिकी

Distribution
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Ecosystems
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Anatomy
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Brain
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Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
आनुवंशिकी
Heterozygosity
हैरेटिबिलटी

Human related
Aquaculture systems
जलीयकृषि रूपरेखाऐ
खींच
Ciguatera cases
Stamps, coins, misc.

Outreach
सहयोगीयो

Taxonomy
आम नाम
उपशब्द
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तस्वीरे

References
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साधन

Special reports

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इंटरनेट स्रोत

Estimates based on models

Preferred temperature (Ref. 123201): 2.2 - 2.6, mean 2.4 °C (based on 499 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.40 se; based on food items.

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Monognathus bertini Bertelsen & Nielsen, 1987