Classificatie / Namen
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Alepocephaliformes (Slickheads and tubeshoulders) >
Platytroctidae (Tubeshoulders)
Etymology: calvala: From the Latin calvus, bald and ala, upper part of arm, alluding to the unscaled pectoral base.
More on authors: Matsui & Rosenblatt.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien bathypelagisch; diepte 1000 - 1400 m (Ref. 26038). Deep-water
Western Central Pacific: known only from the Halmahera Sea.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 9.3 cm SL mannelijk / geslacht onbekend; (Ref. 26038)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 8 - 10. Single infracaudal organ, and the cleithral symphysis with a forward-directed spine. A small GO1 present. No lateral line canal on posttemporal bone. Dorsal origin ahead of that of anal by about a fourth of its length. Mouth large, posterior margin of maxillary behind eye. Maxillary slightly shallower than posterior supramaxillary and strongly convex ventrally. Supramaxillaries exposed, not covered by infraorbitals. A row of 8-10 teeth on external lateral face of dentary. A small supraorbital bone present. Pectoral base and adjacent area without scales.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Matsui, T. and R.H. Rosenblatt, 1979. Two new searsid fishes of the genera Maulisia and Searsia (Pisces: Salmoniformes). Bull. Mar. Sci. 29(1):62-78. (Ref. 26038)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00407 (0.00153 - 0.01085), b=3.17 (2.94 - 3.40), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.3 ±0.5 se; based on size and trophs of closest relatives |
Weerstandsvermogen (Ref. 120179) |
Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |