Classificatie / Namen
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Stomiiformes (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Photonectes: Greek, photos = light + Greek, nekton = swimmer (Ref. 45335); coffea: Named for the shape of the terminal barbel bulb which resembles a coffee bean (Ref. 87305).
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien pelagic-oceanic; diepte 500 - 5486 m (Ref. 87305). Tropical; 31°N - 8°S, 119°E - 169°W
Pacific Ocean: Philippines.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 14.9 cm SL mannelijk / geslacht onbekend; (Ref. 87305)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 12 - 13; Anale zachte stralen: 15 - 17. This species of the subgenus Photonectes is distinguished by the following set of characters: dorsal- and anal-fin rays are not covered with black fleshy skin; no pectoral fins; pelvic fins are inserted closer to the caudal-fin base; IV photophores 37-39; and IP photophores begin halfway posteriorly on the isthmus; differs from P. achirus, P. caerulescens, and P. mirabilis by the absence of the blue luminous tissue (vs. present); differs from P. phyllopogon by the number of dorsal-fin rays 12-13 (vs. 20-23) and IV photophores 38-39 (vs. 30-31); differs from P. corynodes by having an elongate barbel with filamentous terminal barbel (vs. short barbel with bifid terminal barbel) and one white luminous shoulder spot (vs. none); differs from P. barnetti and P. albipennis by the barbel with two bulbs (vs. one) and gill-filament length on first branchial arch very long, extending beyond opercular opening (vs. reduced or normal, not extending beyond opercular opening) (Ref. 87305).
Body shape (shape guide): elongated; Cross section: compressed.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Klepadlo, C., 2011. Three new species of the genus Photonectes (Teleostei: Stomiiformes: Stomiidae: Melanostomiinae) from the Pacific Ocean. Copeia 2011(2):201-210. (Ref. 87305)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
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Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00115 - 0.00790), b=3.11 (2.88 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.9 ±0.7 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).
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