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Ophidiiformes (Cusk eels) >
Bythitidae (Livebearing brotulas)
Etymology: Grammonus: Greek, gramma = signal, mark + Greek, onos = hake.
More on author: Risso.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien rifbewoner; diepte 5 - 30 m. Subtropical; 47°N - 30°N, 1°E - 20°E
Eastern Atlantic: in the Mediterranean from the Balearic Islands to the Adriatic.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 12.0 cm SL mannelijk / geslacht onbekend; (Ref. 4758)
Inhabits shallow rocky areas (Ref. 4758). Probably a deep dweller that migrates to coastal areas in August (Ref. 12382). Uncommon species (Ref. 34024). Nocturnal, hides in caves during the day (Ref. 12382).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Nielsen, J.G., D.M. Cohen, D.F. Markle and C.R. Robins, 1999. Ophidiiform fishes of the world (Order Ophidiiformes). An annotated and illustrated catalogue of pearlfishes, cusk-eels, brotulas and other ophidiiform fishes known to date. FAO Fish. Synop. 125(18):178p. Rome: FAO. (Ref. 34024)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00468 (0.00186 - 0.01174), b=3.03 (2.81 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.5 ±0.50 se; based on food items. |
Weerstandsvermogen (Ref. 120179) |
Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (23 of 100). 🛈 |
Voedingsstoffen (Ref. 124155) |
Calcium = 41.9 [7.2, 143.0] mg/100g; Iron = 0.718 [0.253, 4.057] mg/100g; Protein = 17.9 [15.4, 20.4] %; Omega3 = 0.182 [0.077, 0.439] g/100g; Selenium = 8.15 [1.71, 26.90] μg/100g; VitaminA = 84.2 [24.3, 296.7] μg/100g; Zinc = 1.07 [0.53, 2.26] mg/100g (wet weight); |