Classification / Names आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa

इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) > Rajiformes (Skates and rays) > Gurgesiellidae (Pygmy skates)
Etymology: Fenestraja: Latin, fenestra, -ae = small hole or opening in a bone + Latin, raja, -ae = a fish, Raja sp. (Ref. 45335).
Eponymy: Dr Reizo Ishiyama (1912–2008) was a Japanese ichthyologist who graduated from Tokyo Fisheries College (Tokyo University of Marine Science and Technology). [...] (Ref. 128868), visit book page.

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

समुद्री बाथीड़िमरसल; गहराई सीमा 400 - 1000 m (Ref. 28767). Deep-water

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Western Central Atlantic: Florida, USA and the Gulf of Mexico to Nicaragua.

आकार / वज़न / Age

Maturity: L_m ? range ? - ? cm

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

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा

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

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

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 Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 23 June 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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अधिक जानकारी

Trophic ecology
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Length-weight rel.
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इंटरनेट स्रोत

Estimates based on models

Preferred temperature (Ref. 123201): 6.9 - 14.1, mean 10.3 °C (based on 75 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00661 (0.00222 - 0.01969), b=2.95 (2.71 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.8 ±0.5 se; based on size and trophs of closest relatives

लौटाव (Ref. 120179): निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Low vulnerability (22 of 100).

Fenestraja ishiyamai (Bigelow & Schroeder, 1962)