http://www.fishbase.org/Summary/speciesSummary.php?genusname=Monognathus&speciesname=nigeli ---> http://192.134.151.83/Summary/speciesSummary.php?genusname=Monognathus&speciesname=nigeli http://192.134.151.83/Summary/speciesSummary.php?genusname=Monognathus&speciesname=nigeli ---> https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Monognathus&speciesname=nigeli https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Monognathus&speciesname=nigeli ---> https://fishbase.mnhn.fr/summary/Monognathus-nigeli.html
Monognathus nigeli
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drawing shows typical species in Monognathidae.
Teleostei (teleosts) >
Saccopharyngiformes
(Swallowers and gulpers) >
Monognathidae
(Onejaws)
Etymology:
Monognathus:
Greek, monos = one + Greek, gnathos = jaw (Ref.
45335
)
;
nigeli:
Named after Nigel Merrett who has provided the suthors with several specimens of
Monognathus
and was very helpful during their revisionary work.
.
More on authors:
Bertelsen
&
Nielsen
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathypelagic; depth range 1500 - 3910 m (Ref.
34506
). Deep-water
Northeast Atlantic.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 5.7 cm TL male/unsexed; (Ref.
34506
)
Short description
Morphology
|
Morphometrics
Dorsal
soft rays
(total): 82-95;
Anal
soft rays
: 56 - 60.
M. nigeli
differs from the other species of the genus by the following combination of characters: head long with elongate, pointed snout and almost straight jaw, skull length 6.0-7.0% TL, rostral fang strongly hooked with distal part in a neatly right angle to dorsal profile of skull, predorsal length 14.5-18.5% TL, anterior anal fin ray below dorsal fin ray nos. 15-21, and 5 lateral, subdermal spots of pigmentation (Ref.
34506
).
Four "Discovery" specimens were taken in closing nets between 1510 and 3910 m depth, three of these 1500-2000 m, and one 23 m above the bottom. The "Vityaz" specimen was taken between 3000 m and the surface (Ref.
34506
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Bertelsen, E. and J.G. Nielsen
, 1987. The deep sea eel family Monognathidae (Pisces, Anguilliformes). Steenstrupia, 13(4):141-198. (Ref.
34506
)
IUCN Red List Status (Ref.
130435
)
Data deficient (DD)
; Date assessed:
10 July 2014
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5001 [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
).
Trophic level (Ref.
69278
): 3.2 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153
): Low vulnerability (10 of 100).
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Page last modified by :
mrius-barile
- 20 July 2016
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