Philippines country information

Common names: Bombon sardine, Freshwater herring, Freshwater sardinella
Occurrence: endemic
Salinity: freshwater
Abundance: fairly common (chances are about 50%) | Ref: Anonymous, 1993
Importance: minor commercial | Ref: Bleher, H., 1996
Aquaculture: | Ref:
Regulations: restricted | Ref:
Uses: no uses
Comments: Endemic to Lake Bombon (=Taal), Batangas (Ref. 280).It is believed to be the only freshwater sardine in the Philippines which immigrated from Balayan Bay to Taal Lake (Ref. 81621). Reported harvest in 1984 was over 29,000 tonnes, by 1995 it was below 60 t (Ref. 12165). In 1998, production was at a high of 1120 mt, but down to 294 mt in 2000 (Ref. 80723). Threatened due to overfishing (Ref. 12165, 13446). May have split from the marine Sardinella hualiensis in the late Pleistocene based on DNA analyses (Ref. 108843). Also Ref. 188, 12550, 58652,13446.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Herre, A.W.C.T., 1953
National Database:

Common names from other countries

Järvesardinell, 菲律宾小沙丁鱼, Sardinka filipínská, ... more

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> 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

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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: L_m 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 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).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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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

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

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): PD₅₀ = 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).

Prijsklasse (Ref. 80766): Medium.

Sardinella tawilis (Herre, 1927)