Classificatie / Names
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Atheriniformes (Silversides) >
Atherinopsidae (Neotropical silversides) > Menidiinae
Etymology: Membras: Greek, membras, -ados = a kind of sardine (Ref. 45335); pygmaea: Name from Latin 'pygmaea' meaning little or dwarf, referring to its diminutive size; an adjective..
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien. Tropical
Western Atlantic: Honduras.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 4.3 cm SL mannelijk / geslacht onbekend; (Ref. 123107)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Anale stekels: 1; Anale zachte stralen: 15 - 17; Wervels: 39 - 42. This species belonging to the M. martinica species-group, is distinguished from all
congeners by the following characters: anus is positioned closer to the insertion of pelvic fin than the origin of anal fin; posterior margins of predorsal and lateral scales are smooth or slightly irregular, not laciniate; the least depth of caudal peduncle 6.7-8.5% SL; total gill raker of first arch 16-20, modally 18-19 (Ref. 123107).
Collected on the coastal edge of the lagoon-salt marsh complex: a salt marsh with channels bordered by reeds and saw grass and the bottom peaty. Size at maturity at 2.4 cm SL (Ref. 123107).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Chernoff, B., A. Machado-Allison, J. Escobedo, M. Freiburger, E. Henderson, A. Hennessy, G. Kohn, N. Neri, A. Parikh, S. Scobell, B. Silverstone and E. Young, 2020. Two new miniature silverside fishes of the genus Membras Bonaparte (Atheriniformes, Atherinopsidae) from the Tropical North Atlantic Ocean. Zootaxa 4852(2):191-202. (Ref. 123107)
Status op de Rode Lijst van het IUCN (Ref. 130435)
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].
Trofisch niveau (Ref.
69278): 3.1 ±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).