Taxonomic Remarks
This species is synonym of Colia nasus Temminck & Schlegel, 1846 in Eschmeyer (CofF ver. Mar. 2011: Ref. 86697). Please send references, or more studies are needed.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten; brackvatten pelagiska. Subtropical; 32°N - 27°N
Asia: Yangtze system (from near the mouth to beyond Tung Ting Lake, thus at least 1000 km up river), perhaps also in the Yellow River, but not in the sea.
Storlek / Vikt / Ålder
Könsmognad: Lm ? range ? - ? cm
Max length : 35.4 cm SL hane/ej könsbestämd; (Ref. 116830)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 0; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 80. Body tapering, belly rounded before pelvic fins, with 18 to 20 + 34 to 36 = 54 or 55 keeled scutes from isthmus to anus. Maxilla short, not reaching to edge of gill cover. Pectoral fin with 6 long filaments and 11 (rarely 12) branched fin rays, longer than those of pelvic fin. Anal fin long, the last fin ray joined to the caudal fin, which is small and pointed.
Body shape (shape guide): elongated; Cross section: compressed.
A purely freshwater species occurring in tributaries and associated lakes.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Spawn in school (Ref. 205).
Whitehead, P.J.P., G.J. Nelson and T. Wongratana, 1988. 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(7/2):305-579. Rome: FAO. (Ref. 189)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: kommersiell
Verktyg
Särskilda rapporter
Ladda ner XML
Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00275 (0.00150 - 0.00504), b=3.07 (2.92 - 3.22), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Generation time: 3.9 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).
Sårbarhet i fisket (Ref.
59153): Moderate vulnerability (36 of 100).
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