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Clupeiformes (Herrings) >
Engraulidae (Anchovies) > Coiliinae
Etymology: Thryssa: Greek, thrissa, -es = shad (Ref. 45335).
Eponymy: Major-General Sir Peter Henry Scratchley (1835–1885) was the first High Commissioner of New Guinea. [...] (Ref. 128868), visit book page.
More on authors: Ramsay & Ogilby.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina; sötvatten; brackvatten pelagic-neritic; katadrom (Ref. 138274). Tropical; 5°S - 15°S
Asia and Oceania: Papua New Guinea (Strickland and Fly Rivers), Indonesia (Lorentz River in Irian Jaya) and Australia (rivers entering the Gulf of Carpentaria).
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 40.0 cm SL hane/ej könsbestämd; (Ref. 44894); common length : 20.0 cm SL hane/ej könsbestämd; (Ref. 44894)
Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 12 - 13; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 35 - 42. Belly with 19 + 12 = 31 keeled scutes from isthmus to anus. Maxilla short, only reaching to front border of pre-operculum; first supra-maxilla about two thirds of second. No dark blotches on nape or behind upper part of gill opening.
Body shape (shape guide): elongated; Cross section: compressed.
Adults inhabit streams and associated lagoons, in clear or turbid water; also in brackish estuaries (Ref. 44894), in main river channels as well as smaller tributaries (Ref. 2847). A riverine species reaching nearly 900 km up the Fly River, but also down to the estuary. They form shoals in deeper water of lagoons. Breeding biology is poorly understood, but it seems likely that spawning takes place in fresh water as juveniles have been collected from the upper reaches of some Queensland rivers. The diet consists of small crustaceans, fishes, insects and some plant material (Ref. 44894). Piscivorous (at least as large adults), recorded as feeding on Clupeoides papuensis and Melanotaenia nigra in the Fly River. The only anchovy that is restricted to mainly freshwater habitats (Ref. 44894). The largest anchovy known so far.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Wongratana, T., T.A. Munroe and M. Nizinski, 1999. Order Clupeiformes. Engraulidae. Anchovies. p. 1698-1753. In K.E. Carpenter and V.H. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the WCP. Vol. 3. Batoid fishes, chimaeras and bony fishes part 1 (Elopidae to Linophrynidae). FAO, Rome. (Ref. 9822)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00437 (0.00188 - 0.01015), b=3.11 (2.93 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
4.2 ±0.73 se; based on food items. |
Resiliens (Ref. 120179) |
Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Moderate vulnerability (44 of 100). 🛈 |
Priskategori (Ref. 80766) |
Medium.
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