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Eustomias melanonema
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drawing shows typical species in Stomiidae.
Teleostei (teleosts) >
Stomiiformes
(Lightfishes and dragonfishes) >
Stomiidae
(Barbeled dragonfishes) > Melanostomiinae
Etymology:
Eustomias:
Greek, eu = good + Greek, stoma = mouth (Ref.
45335
)
.
More on authors:
Regan
&
Trewavas
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; pelagic-oceanic; depth range 0 - 680 m (Ref.
11333
). Tropical; 18°N - 4°S
Eastern Atlantic: known only from the vicinity of Cape Verde to just south of the equator in the Gulf of Guinea.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 10.1 cm SL male/unsexed; (Ref.
11333
); 14.8 cm SL (female)
Short description
Morphology
|
Morphometrics
Two terminal bulbs separated by a long interspace, 0.6-1.8 times the length of distal bulb. Barbel length 76-92% SL. Short filaments 5-9 (less than 6% SL) without prominent bulblets, arising together from distal bulb or from a short distal stem; 1 filament thicker and longer than the rest. Some or all filaments with pigmented axes. Distal bulb long about twice as long as wide, with almost straight, parallel margins,1.5-2.5 times proximal-bulb length. Axis of stem and between bulbs with or without pigment; a black spot at proximal end of distal bulb in those with pigment. External chevron-shaped or roundish striated areas on stem unpigmented. Middorsal paired spots between occiput and dorsal-fin origin 8 (Ref.
11333
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
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:
22 May 2013
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201
): 11.6 - 17, mean 14.9 °C (based on 27 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [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
): 4.2 ±0.8 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Low vulnerability (10 of 100).
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Page last modified by :
mrius-barile
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