Okamejei heemstrai, East African skate

Okamejei heemstrai (McEachran & Fechhelm 1982)

East African skate
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Okamejei heemstrai   AquaMaps   Data sources: GBIF OBIS
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Image of Okamejei heemstrai (East African skate)
Okamejei heemstrai
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drawing shows typical fish in this Family.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (Haie und Rochen) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: heemstrai: Named after Phillip C. Heemstra who provided 5 specimens of this species (Ref. 31308).

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

; seewasser bathydemersal; tiefenbereich 260 - 500 m (Ref. 11228).   Deep-water

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Western Indian Ocean: off Kenya and Tanzania (Ref. 31308) to southern Mozambique (Ref. 11228).

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 51.5 cm TL Männchen/unbestimmt; (Ref. 31308)

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Minimum depth from Ref. 58018.

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).

Hauptreferenz Upload your references | Referenzen | Koordinator : McEachran, John | Partner

McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)

IUCN Rote Liste Status (Ref. 123251)

  nicht bedroht (LC) ; Date assessed: 24 April 2018

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

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Estimates based on models

Preferred temperature (Ref. 115969): 9.8 - 14, mean 11.7 °C (based on 15 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00144 - 0.00663), b=3.22 (3.05 - 3.39), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.0   ±0.6 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref. 120179):  niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Fec assumed to be <100).
Verwundbarkeit (Ref. 59153):  Moderate vulnerability (44 of 100) .