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Pseudocyttus maculatus Gilchrist, 1906

Smooth oreo dory
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Pseudocyttus maculatus   AquaMaps   Data sources: GBIF OBIS
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Pseudocyttus maculatus
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Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Straalvinnigen) > Zeiformes (Dories) > Oreosomatidae (Oreos) > Pseudocyttinae
Etymology: Pseudocyttus: Greek, pseudes = false + Greek, kyttaros, kytos = a convex cavity.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; marien bathydemersaal; oceanodroom (Ref. 51243); diepteverspreiding 400 - 1500 m (Ref. 5194), usually 900 - 1100 m (Ref. 36731).   Deep-water; 34°S - 67°S, 90°W - 176°W (Ref. 27159)

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | Faunafri

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 / Size / Gewicht / Leeftijd

Maturity: Lm 40.0  range ? - 41 cm
Max length : 68.0 cm TL mannelijk/geslacht niet bekend; (Ref. 58312); common length : 40.0 cm TL mannelijk/geslacht niet bekend; (Ref. 9258); Maximaal gepubliceerd gewicht: 5.0 kg (Ref. 6390); Maximaal vermelde leeftijd: 100 jaren (Ref. 27140)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 5 - 7; Dorsale zachte stralen (totaal): 33-36; Anale stekels 2-3; Anale zachte stralen: 31 - 34; Wervels: 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).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

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).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Displays seasonally synchronised reproduction (Ref. 6390).

Voornaamste referentie Upload your references | Referenties | Coördinator : Heemstra, Phillip C. | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 120744)

  Onvoldoende gegevens (DD) ; Date assessed: 04 February 2009

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 2.1 - 6.1, mean 4.2 (based on 189 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0010   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00820 - 0.04854), b=2.99 (2.77 - 3.21), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.6   ±0.57 se; Based on food items.
Weerstandsvermogen (Ref. 69278):  zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (K=0.07; tmax=100; tm=31; Fec=6,000).
Kwetsbaarheid (Ref. 59153):  High to very high vulnerability (72 of 100) .
Prijsklasse (Ref. 80766):   Medium.