Elasmobranchii (hajar och rockor) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335).
Eponymy: Dr Hajime Ishihara (d: 1950) is a Japanese ichthyologist and Environment Specialist who was connected with the Iraq Sea Line Project under JICA (Japan International Corporation Agency) and is now with W & I Associates Corporation, Fujisawa, Japan. [...] (Ref. 128868), visit book page.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina bottenlevande; djupintervall ? - 2300 m (Ref. 75587). Deep-water; 32°S - 44°S, 109°E - 159°E (Ref. 114953)
Eastern Indian Ocean: SW Australia (Naturalist Plateau), Tasmania and possibly the Lord Howe Rise (Tasman Sea) .
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 123 cm TL hane/ej könsbestämd; (Ref. 114953)
Known only from three specimens, caught from abyssal depths 2320 - 2800 m (Ref. 114953).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Stehmann, M.F.W., 2005. Bathyraja ishiharai n. sp., a new deep-water skate from the eastern Indian Ocean on the Naturalist Plateau oof southwestern Australia. J. Ichthyol. 45(suppl. 1):39-57. (Ref. 75587)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00562 (0.00298 - 0.01063), b=3.13 (2.97 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
4.1 ±0.7 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Mycket låg, lägsta populationsfördubblingstid mer än 14 år (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
High to very high vulnerability (74 of 100). 🛈 |