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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.
Eponymy: N P Pakhorukov is a Ukrainian ichthyologist at the Institute of the Biology of Southern Seas, National Academy of Sciences of the Ukraine, Sevastopol, Crimea. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien bathydemersaal; diepte 670 - 690 m (Ref. 41608). Deep-water
Southwest Atlantic: Rio Grande Seamount (High Seas only).
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 30.0 cm TL mannelijk / geslacht onbekend; (Ref. 41608); 28.8 cm SL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 61; Anale zachte stralen: 50 - 51; Wervels: 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).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00468 (0.00205 - 0.01068), b=3.08 (2.89 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.5 ±0.3 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).
