Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino demersale; distribuzione batimetrica 22 - 450 m (Ref. 58489), usually 100 - 250 m (Ref. 3243). Subtropical; 27°S - 48°S, 62°W - 176°W
Indo-Pacific: St. Paul and Amsterdam islands in the Indian Ocean, southern Australia, including Tasmania, and New Zealand. Southwest Atlantic: southern South America.
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm 30.0, range 25 - 35 cm
Max length : 70.0 cm TL maschio/sesso non determinato; (Ref. 9563); common length : 35.0 cm TL maschio/sesso non determinato; (Ref. 3243); peso massimo pubblicato: 2.9 kg (Ref. 6390); Età massima riportata: 50 anni (Ref. 26998)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 17 - 18; Raggi dorsali molli (totale) : 25 - 28; Spine anali: 3; Raggi anali molli: 14 - 15; Vertebre: 35. Adults have elongate upper pectoral-fin rays and are silvery with a broad black band from the nape to the pectoral-fin base (Ref. 33616).
Body shape (shape guide): fusiform / normal.
Adults demersal on the continental shelf and upper slope (Ref. 9563) to depths of 450 m (Ref. 33616). Juveniles tend to live near shallow reefs (Ref. 6390). Postlarvae inhabit offshore waters and are found in surface waters at night (Ref. 9072). Average weight is 1800 g. Feed on polychaete worms, crustaceans, mollusks and echinoderms (Ref. 28626). Flesh is quite good eating. Often sold as tiki fillets.
Jackass morwong have an extended pelagic postlarval stage (Ref. 6390). Research in New Zealand has shown that metamorphosis to the juvenile stage occurs between 9 and 12 months after hatching (Ref. 28625).
Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993. Australian fisheries resources. Bureau of Resource Sciences, Canberra, Australia. 422 p. (Ref. 6390)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: commerciale; Pesce da pesca sportiva: si
Strumenti
Rapporti speciali
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Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01288 (0.00968 - 0.01715), b=3.03 (2.95 - 3.11), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
3.4 ±0.42 se; based on food items. |
Resilienza (Fonte Biblio. 120179) |
Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (K=0.1-0.28; tm=3-6; Fec=100,000; tmax=50). |
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Rate of population increase |
Prior r = 0.27, 95% CL = 0.18 - 0.40, Based on 2 full stock assessments. |
Vulnerabilità della pesca (Ref. 59153) |
Moderate to high vulnerability (50 of 100). 🛈 |
Vulnerabilità climatica (Ref. 125649) |
Low to moderate vulnerability (26 of 100). 🛈 |
Categoria di prezzo (Ref. 80766) |
High.
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Nutrienti (Ref. 124155) |
Calcium = 53.9 [34.9, 93.5] mg/100g; Iron = 0.942 [0.612, 1.486] mg/100g; Protein = 19.1 [17.3, 20.9] %; Omega3 = 0.381 [0.268, 0.531] g/100g; Selenium = 42.1 [24.0, 72.3] μg/100g; VitaminA = 9.17 [3.73, 21.69] μg/100g; Zinc = 0.658 [0.505, 0.900] mg/100g (wet weight); |