Actinopteri (ray-finned fishes) > Anguilliformes
(Eels and morays) > Nettastomatidae
Etymology: Facciolella: Latin, diminutive of falx, falcis = sickle (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 30 - 731 m (Ref. 4454). Subtropical; 43°N - 17°S, 18°W - 17°E
Eastern Atlantic: southern Portugal to Angola including the Ligurian and Tyrrhenian seas in the Mediterranean.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 64.9 cm SL male/unsexed; (Ref. 4454)
The young are sometimes found in caves, larger specimens caught deeper. Feeds mainly on decapod natantia (Ref. 4776).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Smith, D.G., 1990. Nettastomatidae. p. 172-175. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI; Paris; and UNESCO, Paris. Vol. 1. (Ref. 4454)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 11 - 15.8, mean 13.9 °C (based on 69 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00089 (0.00035 - 0.00227), b=2.98 (2.77 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.50 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Moderate to high vulnerability (52 of 100).