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Clupeiformes (Herrings) >
Engraulidae (Anchovies) > Engraulinae
Etymology: Encrasicholina: Greek, egkrasicholos, -os, -on = mixed with spleen; auster: Name from Latin 'auster’ meaning the south wind; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien rifbewoner. Tropical
Western Central Pacific: Fiji.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 5.1 cm SL mannelijk / geslacht onbekend; (Ref. 128576)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 3; Dorsale zachte stralen (totaal) : 12 - 13; Anale stekels: 3; Anale zachte stralen: 15 - 17; Wervels: 42 - 43. This species is distinguished by the following set of characters: dorsal and anal fins with three unbranched rays; pseudobranchial filaments 19-21 (modally 20); branched pectoral-fin rays 12-13 (13); gill rakers on first gill arch, in upper series 20-22 (22), in lower series 25-27 (27), in total 45-49 (49); gill rakers on second gill arch, upper series15-17 (17), lower series 24-26 (25), total 40-43 (40, 42); gill rakers on third gill arch, upper series 12-16 (14), lower series 13-15 (14), total 26-31 (26, 28); gill rakers on fourth gill arch, upper series 11-13 (12), lower series 11-12 (11), total 22-25 (23); prepelvic scutes 5-6 (5); transverse scales 11; head long, its length 29.1%-29.2% (mean 29.2%) of SL; upper jaw long, its length 20.8%-22.5% (mean 21.2%) of SL, with posterior tip reaching to posterior edge of preopercle; lower jaw long, the length 19.0%-20.7% (mean 19.7%) of SL; the first unbranched dorsal- and anal-fin rays are minute, the length 0.9%-1.5% (mean 1.1%) and 0.9%-1.6% (mean 1.2%) of SL, respectively; distance from dorsal-fin origin to upper end of pectoral-fin insertion is rather long, 97.5%-106.3% of HL (mean 103.9%) (Ref. 128576).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Hata, H. and H. Motomura, 2017. A new species of anchovy, Encrasicholina auster (Clupeiformes: Engraulidae) from Fiji, southwestern Pacific Ocean. New Zealand J. Zool. 44(2):122-128. (Ref. 128576)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
Gebruik door de mens
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00250 - 0.01100), b=3.13 (2.95 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.2 ±0.1 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).
