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Anguilliformes (Eels and morays) >
Anguillidae (Freshwater eels)
Etymology: Anguilla: Latin, anguilla, .-ae = eel (Ref. 45335).
Eponymy: Dr Johann Karl Ernst Dieffenbach (1811–1855) was a German physician, naturalist, explorer, linguist and writer. [...] (Ref. 128868), visit book page.
More on author: Gray.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina; sötvatten; brackvatten bottenlevande; katadrom (Ref. 138138). Subtropical; 34°S - 47°S
Southwest Pacific: endemic to New Zealand.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm ?, range 80 - ? cm
Max length : 185 cm TL hane/ej könsbestämd; (Ref. 44724); 156.0 cm TL (female); common length : 60.0 cm TL hane/ej könsbestämd; (Ref. 9258); common length :100 cm TL (female); publicerad maxvikt: 25.0 kg (Ref. 11115)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Commonly found in lakes and rivers (Ref. 9258). Inhabits stony rivers (Ref. 9072). Migrates to the sea to breed. Oviparous (Ref. 205). Marketed fresh, smoked and frozen; eaten fried and broiled (Ref. 9988). Reports of reaching up to 2 meters and 50 kilograms are rare and more common historically; in recent times, only a few exceed 120 cm TL (Ref. 82796).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Armitage, R.O., D.A. Payne, G.J. Lockley, H.M. Currie, R.L. Colban, B.G. Lamb and L.J. Paul (eds.), 1994. Guide book to New Zealand commercial fish species. Revised edition. New Zealand Fishing Industry Board, Wellington, New Zealand, 216 p. (Ref. 9258)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: kommersiell; Vattenbruk: experimentell
Verktyg
Särskilda rapporter
Ladda ner XML
Internet-källor
Uppskattningar baserade på modeller
Önskad temperatur (Ref.
123201): 10.6 - 18.3, mean 15.1 °C (based on 138 cells).
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00093 (0.00076 - 0.00115), b=3.20 (3.15 - 3.25), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisk nivå (Ref.
69278): 4.5 ±0.5 se; based on diet studies.
Resiliens (Ref.
120179): Mycket låg, lägsta populationsfördubblingstid mer än 14 år (Tmax=60; tm=10-48 years based on age-length relationship.).
Sårbarhet i fisket (Ref.
59153): Very high vulnerability (90 of 100).
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