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Beryciformes (Sawbellies) >
Melamphaidae (Bigscale fishes or ridgeheads)
Etymology: shakhovskoyi: Named after Ilya Borisovich Shakhovskoy, from the Laboratory of oceanic ichthyofauna of Shirshov Institute of Oceanology of the Russian Academy of Sciences.
Environment: milieu / Klimaatzone / Diepte / distribution range
Ecologie
marien bathydemersaal; diepte 100 - 1250 m (Ref. 132586). Tropical; 20°N - 40°S
Verspreiding
Landen | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri
Atlantic Ocean: tropical and subtropical; Mid-Atlantic Ridge (south from the Cap-Vert rift).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 1.8 cm SL mannelijk / geslacht onbekend; (Ref. 132586); 1.4 cm SL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 3; Dorsale zachte stralen (totaal) : 11; Anale stekels: 1; Anale zachte stralen: 8. This species is distinguished by the following characters: gill rakers at first gill arch 18; D III,11; pectoventral distance along the horizontal line between the verticals of the lower edge of the pectoral fin and the origin of the pelvic fin < 5% SL; body depth 25.4-26.4% SL; head length 37.5-40.2% SL; upper jaw length 55.6-59.5% HL; pectoral fin reaches the vertical line of middle of anal fin (Ref. 132586).
Cross section: compressed.
Vertical migration of this fishh occurred at depths from 100-200 m to 1000-1250 m. At night, post-larvae (1.0-1.4 cm SL) and juveniles (1.5-1.7 cm SL) occurred at depths from 100-200 to 900-1000 m; and for sub-adults (1.8-2.1 cm SL) and adult fish (2.0-2.5 cm SL), from 500-600 to 1000-1250 m. At daytime, the fish migrated to greater depths: post-larvae and juvenile
from 400-500 to 900-1000 m, and for sub-adults and adults from 700-800 to 900-1000 m. Most catches of were carried out by closing fishing gear (Ref. 132586).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Kotlyar, A.N., 2024. Scopeloberyx shakhovskoyi, a new species of Melamphaidae family from the Atlantic Ocean. J. Ichthyol. 64(4):571-576. (Ref. 132586)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
Tools
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Trofisch niveau (Ref.
69278): 3.0 ±0.2 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 (10 of 100).
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