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) > Arhynchobatidae (Softnose skates)
Etymology: Atlantoraja: Greek, atlantes = havin the strenght of Atlas, the god that supported the pillar s of the universe in the Greek mithology + Latin, raja = ray (Raja sp.) (Ref. 45335).

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

समुद्री ड़िमरसल; गहराई सीमा 10 - 100 m (Ref. 57911). Subtropical; 20°S - 40°S, 60°W - 40°W (Ref. 57911)

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

Southwest Atlantic: Brazil, Uruguay and Argentina.

Length at first maturity / आकार / वज़न / Age

Maturity: L_m 105.0 range ? - ? cm
Max length : 132 cm TL पुल्लिंग / अलिंग; (Ref. 57911); common length : 45.0 cm TL पुल्लिंग / अलिंग; (Ref. 6077)

Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsule measures 92-103 mm long and 72-80 mm wide (Ref. 41249). Utilized as fishmeal (Ref. 6077).

Life cycle and mating behavior Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).

Main reference Upload your references | संदर्भ | संयोजक : McEachran, John | 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)

Critically Endangered (CR) (A2bd); Date assessed: 01 July 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

मात्स्यिकी: कोई रुचि बग़ैर

FAO - Publication: search | FishSource | Sea Around Us

अधिक जानकारी

Trophic ecology
खाद्य पदार्थ
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परभक्षी

Ecology
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Population dynamics
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Length-weight rel.
Length-length rel.
Length-frequencies
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Recruitments
Abundances

Life cycle
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Maturities
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Egg(s)
Egg developments
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Distribution
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Human related
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Stamps, coins, misc.

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इंटरनेट स्रोत

Estimates based on models

Preferred temperature (Ref. 123201): 10.6 - 23.2, mean 17.1 °C (based on 116 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00550 (0.00273 - 0.01106), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.5 ±0.80 se; based on food items.

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

Fishing Vulnerability (Ref. 59153): Very high vulnerability (79 of 100).

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