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Alepocephalus planifrons
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drawing shows typical species in Alepocephalidae.
Teleostei (teleosts) >
Alepocephaliformes
(Slickheads and tubeshoulders.) >
Alepocephalidae
(Slickheads)
Etymology:
Alepocephalus:
Greek, alepos, alepidotos = without scales + Greek, kephale = head (Ref.
45335
)
;
planifrons:
Named for its wide, smooth upper surface on the head.
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 400 - 750 m (Ref.
41471
). Deep-water
Southeast Pacific.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 31.7 cm SL (female)
Short description
Morphology
|
Morphometrics
Dorsal
soft rays
(total): 17-20;
Anal
soft rays
: 18 - 21;
Vertebrae
: 52 - 54. Head relatively short, <39.5-0.025% SL. Snout short (22-28%HL); broadly triangular anteriorly when viewed from above. Orbit diameter about 1/5 to 1/4 HL, along the whole upper edge and on the separate elongate-shaped part of the lower-posterior part of the orbit are accumulation s of whitish connective tissue. Interorbital space very wide, ca. 17-30% HL, flat, narrows very slightly at the middle of the orbit. Upper jaw extends to below the center of the orbit. Branchiostegal rays 8-9. Transverse rows of scales above lateral line 60-65, 30-35 predorsal. Gill rakers" length less than gill lamellae length, and completely free at the base. Opercle has a projection at the lower anterior corner; subopercle has a wide posterior edge usually with no separate processes. Anus not shifted forward from the origin of the anal fin. Pyloric caeca 12-18 (Ref.
41471
).
Inhabits continental slopes.
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Sazonov, Y.I.
, 1994. A new species of slickhead
Alepocephalus planifrons
(Alepocephalidae) from the southeastern Pacific. J. Ichthyol. 34(2):104-111. (Ref.
41471
)
IUCN Red List Status (Ref.
130435
)
Not Evaluated
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201
): 2.2 - 4, mean 2.6 °C (based on 75 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00164 - 0.00733), b=3.19 (3.00 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.6 ±0.2 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 to moderate vulnerability (29 of 100).
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Laguna, Philippines
Page last modified by :
mrius-barile
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