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Gaidropsarus pakhorukovi, Pakhorukov rockling
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Pakhorukov rockling
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Gaidropsarus pakhorukovi
Picture by
Simpson, R.
Teleostei (teleosts) >
Gadiformes
(Cods) >
Gaidropsaridae
(Rocklings)
Etymology:
Gaidropsarus:
Greek, ga, ge = the earth + Greek, ydro = water + Greek psaros = speckled, starling (Ref.
45335
)
;
pakhorukovi:
Named for N.P. Pakhorukov.
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range ? - 690 m (Ref.
41608
). Deep-water
Southwest Atlantic: Rio Grande Rise.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 30.0 cm TL male/unsexed; (Ref.
41608
); 28.8 cm SL (female)
Short description
Morphology
|
Morphometrics
Dorsal
soft rays
(total): 61;
Anal
soft rays
: 50 - 51;
Vertebrae
: 46 - 47. Color uniform, brownish gray, darker dorsally; fins gray. Anterior ray of first dorsal fin smaller than eye diameter. Eyes small, less than 0.20 times HL. Gill rakers tuberculiform. Predorsal length relatively large, 24.4% SL. Lateral line with 8-7 distinct segments until the bend, with 3-4 in the bend and up to 9 sparsely arranged segments in the middle of the body. Head with 4 pores in the supraorbital canal, 12 in the infraorbital canal and 13 in the preoperculomandibular canal. Head large; 2nd dorsal and anal fins relatively short; pectorals long. Teeth are small, pointed, larger ones caniniform. Mouth relatively small, not reaching to below posterior edge of eye (Ref.
41608
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Shcherbachev, Y.N.
, 1995. New species of rockling
Gaidropsarus pakhorukovi
(Gadidae), from the Rio Grande Rise (Southwest Atlantic). J. Ichthyol. 35(8):233-235. (Ref.
41608
)
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
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00208 - 0.01103), b=3.08 (2.89 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.5 ±0.3 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 (20 of 100).
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Page last modified by :
mrius-barile
- 20 July 2016
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