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Zeiformes (Dories) >
Oreosomatidae (Oreos) > Pseudocyttinae
Etymology: Pseudocyttus: Greek, pseudes = false + Greek, kyttaros, kytos = a convex cavity.
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
সামুদ্রিক ব্যথিডিমারসাল সমুদ্র তলদেশবিহারী; মহাসাগরে বিচরনক্ষম (Ref. 51243); গভীরতার পরিসীমা 400 - 1500 m (Ref. 5194), usually 900 - 1100 m (Ref. 36731). Deep-water; 34°S - 67°S, 90°W - 176°W (Ref. 27159)
Southwest Atlantic: off Uruguay to Argentina and the Falklands. Southeast Atlantic: Namibia to South Africa, including the northern part of Walvis Ridge (Ref. 6545). South Pacific: off southern Chile, Bellingshausen and Australian-Antarctic Basin to New Zealand, New South Wales and Tasmania, Australia and the Kerguelen Islands.
Length at first maturity / আকৃতি / ওজন / Age
Maturity: Lm 40.0 range ? - 41 cm
Max length : 68.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 58312); common length : 40.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 9258); সবের্াচ্চ প্রকাশিত ওজন : 5.0 kg (Ref. 6390); সর্বোচ্চ উলি্ল্লখিত বয়স : 100 বৎসর (Ref. 27140)
পৃষ্ঠীয় কাঁটা (মোট ) : 5 - 7; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 33 - 36; পায়ূ কাঁটা : 2 - 3; পায়ূর নরম পাখনা্তুন্ড: 31 - 34; কশেরুকা : 40 - 43. First dorsal spine longer than second dorsal spine. Opercles fully scaled (Ref. 27159).
Female adult chocolate brown in color with darker fins; prejuveniles silvery with numerous dark spots of various sizes which become larger with age (Ref. 6548).
Inhabit continental slopes of all southern continents (Ref. 6545). Adults found near the bottom; juveniles near the surface, usually in association with krill (Ref. 5194). Feed mainly on salps (Ref. 27150). Eggs float near the sea surface and larvae also inhabit surface waters (Ref. 6390). There is no vertical migration during the day or night (Ref. 27150).
Displays seasonally synchronised reproduction (Ref. 6390).
Heemstra, P.C., 1990. Oreosomatidae. p. 226-228. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. (Ref. 5194)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
মৎস্য: বাণিজ্যিক
হাতিয়ার
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ইন্টারনেট সুত্র
Estimates based on models
Preferred temperature (Ref.
123201): 2.1 - 6.1, mean 4.2 °C (based on 189 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00813 - 0.04898), b=2.99 (2.77 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 3.6 ±0.47 se; based on food items.
স্থিতিস্থাপক (Ref.
120179): অত্যন্ত কম , সর্বনিম্ন প্রজন দ্বিগুনের সময় ১৪ বৎসর (K=0.07; tmax=100; tm=31; Fec=6,000).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (72 of 100).
Climate Vulnerability (Ref.
125649): Moderate vulnerability (39 of 100).
Nutrients (Ref.
124155): Calcium = 16.2 [8.5, 36.6] mg/100g; Iron = 0.416 [0.153, 0.905] mg/100g; Protein = 17.2 [14.6, 20.0] %; Omega3 = 0.332 [0.167, 0.702] g/100g; Selenium = 24.3 [9.3, 71.5] μg/100g; VitaminA = 11.1 [1.8, 67.9] μg/100g; Zinc = 0.335 [0.207, 0.526] mg/100g (wet weight);
