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Clupeiformes (Herrings) >
Dorosomatidae (Gizzard shads and sardinellas)
Etymology: Nematalosa: Greek, nema, -atos = filament + Latin, alausa = a fish cited by Ausonius and Latin, halec = pickle, dealing with the Greek word hals = salt; it is also the old Saxon name for shad = "alli" ; 1591 (Ref. 45335).
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten pelagiska. Tropical; 4°S - 7°S
Oceania: endemic to Papua New Guinea (only known from Fly and Strickland rivers).
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 21.0 cm SL hane/ej könsbestämd; (Ref. 2847)
Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 16 - 17; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 17 - 26. Belly with 16 to 18 (usually 17) + 10 to 13 (usually 11 or 12), total 26 to 31 (usually 28 or 29) scutes. Anterior arm of pre-operculum wit a fleshy triangular area above, not covered by third infra-orbital bone (see N. come). Edge of lower jaw strongly flared outward. Pectoral axillary scales absent. Hind edge of scales toothed; no dark spot behind gill opening; a band on flank.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Occurs in rivers, but there is no indication whether it descends to estuaries. A filter-feeder. More data needed.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
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 på IUCN:s rödlista (Ref. 130435: Version 2025-2)
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: husbehovsfiske
Verktyg
Särskilda rapporter
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Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00415 - 0.01826), b=3.06 (2.89 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.4 ±0.45 se; based on food items.
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Sårbarhet i fisket (Ref.
59153): Low vulnerability (16 of 100).
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