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Teleostei (teleosts) > Stomiiformes (Lightfishes and dragonfishes) > Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Thysanactis: Greek, thysanos = tassel + Greek, aktis = ray (Ref. 45335).
More on authors: Regan & Trewavas.

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

Marine; bathypelagic; depth range 100 - 1000 m (Ref. 58302). Deep-water; 18°N - 30°S, 62°W - 150°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Pacific and Atlantic: in tropical to temperate waters. Eastern Atlantic: common in mid-ocean between 10°N and 5°S, single record at 19°S 5°W and at 30°S 5°E. Western Atlantic: Lesser Antilles to Brazil.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 18.0 cm SL male/unsexed; (Ref. 4468)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 17 - 18; Anal soft rays: 21 - 25. Body slender. Chin barbel as long as head, pigmented with white spots. Tip of barbel white, small spindle-shaped bulb, minute and rounded terminal body (Ref. 37473).

Mesopelagic (Ref. 559, 75154).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Gibbs, R.H. and M.A. Barnett, 1990. Melanostomiidae. p. 308-337. 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. 4468)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 01 July 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 8.1 - 17.2, mean 11.1 °C (based on 354 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00302 (0.00117 - 0.00783), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.3 ±0.8 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (12 of 100).

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