Environment: milieu / climate zone / গভীরতার পরিসীমা / distribution range
বাস্তুসংস্থান
সামুদ্রিক তলদেশ বিহারী; গভীরতার পরিসীমা 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.
Length at first maturity / আকৃতি / ওজন / Age
পরিপক্কতা : Lm 30.0, range 25 - 35 cm
Max length : 70.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 9563); common length : 35.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 3243); সবের্াচ্চ প্রকাশিত ওজন : 2.9 kg (Ref. 6390); সর্বোচ্চ উলি্ল্লখিত বয়স : 50 বৎসর (Ref. 26998)
পৃষ্ঠীয় কাঁটা (মোট ) : 17 - 18; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 25 - 28; পায়ূ কাঁটা : 3; পায়ূর নরম পাখনা্তুন্ড: 14 - 15; কশেরুকা : 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)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
মৎস্য: বাণিজ্যিক; শিকারযোগ্য মাছ: হঁ্যা
হাতিয়ার
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ইন্টারনেট সুত্র
Estimates based on models
Preferred temperature (সূত্র
123201): 11.1 - 16, mean 14 °C (based on 71 cells).
Phylogenetic diversity index (সূত্র
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01288 (0.00964 - 0.01722), b=3.03 (2.95 - 3.11), in cm total length, based on LWR estimates for this species (Ref.
93245).
ট্রফিক পর্যায়ে (সূত্র
69278): 3.4 ±0.42 se; based on food items.
স্থিতিস্থাপক (সূত্র
120179): অত্যন্ত কম , সর্বনিম্ন প্রজন দ্বিগুনের সময় ১৪ বৎসর (K=0.1-0.28; tm=3-6; Fec=100,000; tmax=50).
Prior r = 0.27, 95% CL = 0.18 - 0.40, Based on 2 full stock assessments.
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100).
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Climate Vulnerability (Ref.
125649): Low to moderate vulnerability (26 of 100).
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Nutrients (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);
