http://www.fishbase.org/Summary/speciesSummary.php?genusname=Dalophis&speciesname=boulengeri ---> http://192.134.151.83/Summary/speciesSummary.php?genusname=Dalophis&speciesname=boulengeri http://192.134.151.83/Summary/speciesSummary.php?genusname=Dalophis&speciesname=boulengeri ---> https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Dalophis&speciesname=boulengeri https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Dalophis&speciesname=boulengeri ---> https://fishbase.mnhn.fr/summary/Dalophis-boulengeri.html
Dalophis boulengeri
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drawing shows typical species in Ophichthidae.
Teleostei (teleosts) >
Anguilliformes
(Eels and morays) >
Ophichthidae
(Snake eels) > Ophichthinae
Etymology:
Dalophis:
Greek, dalos, ou = torch, burning piece of wood + Greek, ophis = serpent (Ref.
45335
)
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; brackish; demersal; pH range: 7.5 - 8.2. Tropical; 23°C - 28°C (Ref.
13614
); 21°N - 18°S, 18°W - 14°E
Eastern Atlantic: Mauritania to Angola.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 57.4 cm TL male/unsexed; (Ref.
3508
); common length : 47.5 cm TL male/unsexed; (Ref.
4455
)
Short description
Morphology
|
Morphometrics
Dorsal
spines
(total): 0;
Dorsal
soft rays
(total): 0;
Anal
spines
: 0;
Anal
soft rays
: 0. Caudal ends in a hardened point. Ogivale head, small eyes near buccal joint at end of snout. Buccal slit short, snout prominent covered with villi. Gill slits lateroventral, crescentiform. Thin dorsal and anal fins, in groove; dorsal origin behind gill slits (predorsal length 11.5-16.9% TL); anal origin immediately behind anus. Pores of lateral system and cephalic slightly rimmed. One median pore on the supraorbital joint; 57-64 pores on lateral line before the anus. Vertebrae: 149-162. Dark brown back and dorsal base, whitish belly.
Mainly nocturnal. During the day, this fish lies buried in the sediment with the head out.
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Leiby, M.
, 1990. Ophichthidae. p. 176-192. 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.
4455
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
25 October 2019
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Zoological Record
Estimates based on models
Preferred temperature (Ref.
123201
): 21.4 - 28, mean 27.1 °C (based on 208 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00089 (0.00039 - 0.00204), b=3.00 (2.80 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.8 ±0.6 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
): Moderate vulnerability (43 of 100).
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Page last modified by :
mrius-barile
- 20 July 2016
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