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Clupeiformes (Herrings) >
Dorosomatidae (Gizzard shads and sardinellas)
Etymology: Sardinella: Latin and Greek, sarda = sardine; name related to the island of Sardinia; diminutive (Ref. 45335); tawilis: tawilis is a local tagalog name (Ref. 2930).
More on author: Herre.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water pelagisch; standvastig. Tropical; 18°N - 14°N
Asia: endemic to Lake Taal (formerly Lake Bombon), Luzon, Philippines. This freshwater lake, linked to the sea via the Pansipit River, was part of Balayan Bay, South China Sea, and was formed by a series of volcanic eruptions in the 18th century (Ref. 5522).
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturity: Lm 7.9  range ? - ? cm
Max length : 12.0 cm TL mannelijk / geslacht onbekend; (Ref. 5520); 15.2 cm TL (female); max. gepubliceerd gewicht: 0.00 g
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 15 - 18; Anale stekels: 0; Anale zachte stralen: 18 - 21; Wervels: 39 - 42. Total scutes 28 to 30. gill rakers slender, long and numerous (Ref. 5520).
Inhabits lakes. This is the only species of Sardinella that is apparently found only, or even mainly, in freshwater. Presumably schooling. Also caught using ring nets (Ref. 5520). Mainly caught by gill net, beach seine, ring net and motorized push net (Refs.81494, 80728, 5520). Eaten fresh or dried (Ref. 5517). Is threatened by overfishing (Ref. 6308).
Whitehead, P.J.P., 1985. FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/1):1-303. Rome: FAO. (Ref. 188)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Bedreigd (EN) (A2bd; B1ab(iii,v)+2ab(iii,v)); Date assessed: 28 February 2017
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: visserij voor eigen gebruik
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00399 - 0.01817), b=3.03 (2.86 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.0 ±0.0 se; based on diet studies.
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (22 of 100).