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Notacanthiformes (Halosaurs and deep-sea spiny eels) >
Notacanthidae (Deep-sea spiny eels)
Etymology: Notacanthus: Greek, noton = back + Greek, akantha = thorn (Ref. 45335); laccadiviensis: Named for Laccadives (=Lakshadweep), an archipelago of islands in the Laccadive Sea (Central
Indian Ocean), off the coast of southwestern India.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin benthopélagique; profondeur ? - 350 m (Ref. 130909). Tropical
Western Indian Ocean: India.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 16.7 cm SL mâle / non sexé; (Ref. 130909)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
This species is distinguished from all its congeners (except N. indicus) by the following characters: fewer anal-fin rays 92-94 (vs. 105-136), and except N. abotti and N. chemnitzi in the greater number of dorsal-fin spines 12 (vs. 5-11); differs from N. abotti, N. chemnitzii, N. indicus in having fewer pectoral-fin rays 10-11 (vs. 12-16); differs from N. abotti in the number of spines and rays on the ventral fin III-IV, 5-7 (vs. VI, 6) and number of gill rakers on the first-gill arch 3 + 7 (vs. 4 + 11); differs from N. chemnitzi in the number of spines and rays on the anal fin XX, 110 (vs. XIII-XVI, 92–94) and number of gill rakers on the first-gill arch (vs. 3 + 11-12); and from N. indicus, the only congeneric species currently known from the Indian Ocean region in the morphology of dorsal fin with spines increasing in length (vs. first 10 spines increasing in length, followed by a shorter 11th spine) (Ref. 130909).
Cross section: oval.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Konhamkakkada, I., B. Kinattumkara, R, Raghavan and S. Sivanpillai, 2023. A new species of spiny eel of the genus Notacanthus Bloch 1788 (Notacanthiformes: Notacanthidae) from the Indian Ocean. J. Fish Biol. 103(1):113-117. (Ref. 130909)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
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Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5040 [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).
Niveau trophique (Réf.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Résilience (Réf.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Vulnérabilité de la pêche (Ref.
59153): Low vulnerability (10 of 100).
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