Myliobatis ridens, Shortnose eagle ray

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Myliobatis ridens Ruocco, Lucifora, Díaz de Astarloa, Mabragaña & Delpiani, 2012

Shortnose eagle ray
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Myliobatis ridens   AquaMaps   Data sources: GBIF OBIS
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Classification / Names आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa

इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) > Myliobatiformes (Stingrays) > Myliobatidae (Eagle and manta rays)
Etymology: Myliobatis: Greek, mylo = mill + Greek, + Greek, batis,-idos = a ray (Raja sp.) (Ref. 45335);  ridens: Name from Latin 'ridens' meaning laughing or smiling, referring to the peculiar countenance of this species caused by the corners and width of the mouth that resembles a smile.

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

; समुद्री; खारा बेनथोपिलाजिक; गहराई सीमा 5 - 47 m (Ref. 91774), usually 5 - 15 m (Ref. 91774).   Subtropical; 0°C -

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

Southwest Atlantic: Brazil to Argentina.

आकार / वज़न / Age

Maturity: Lm ?  range ? - ? cm
Max length : 63.0 cm WD पुल्लिंग / अलिंग; (Ref. 91774); 70.0 cm WD (female)

Short description आकृति विज्ञान | मौरफोमैटरिक्स

This species is distinguished by the following set of characters: rhombic disc which is wider than long, width about 2.2-times TL; disc length 58%-64% of DW; anterior margin of disc joining head behind orbits; head clearly protruding from disc, eyes in lateral position, moderate in size; snout width equal to interorbital distance (13.6%-16.5% DW), mouth relatively wide, as broad as distance between 5th gill slits (mouth width 0.8-1-times distance between 5th gill slits); mouth width greater than distance between inner ends of nostrils (1.5-1.6- times); distance between 5th gill slits greater than distance between inner ends of nostrils (1.8-1.6-times) (Ref. 91774).

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

Male and female mature at approximately 50.0-60.0 mm DW (Ruocco, unpubl. data), and males are typically smaller than females (Ref. 91774).

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

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

Ruocco, N.L., L.O. Lucifora, J.M.D. de Astarloa, E. Mabragaña and S.M. Delpiani, 2012. Morphology and DNA barcoding reveal a new species of Eagle Ray from the Southwestern Atlantic: Myliobatis ridens sp. nov. (Chondrichthyes: Myliobatiformes: Myliobatidae). Zoological Studies 51(6): xxx-xxx. Two (Ref. 91774)

IUCN Red List Status (Ref. 124695)

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

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

अधिक जानकारी

देश
ऐफ ऐ ओ क्षेत्र
Ecosystems
संयोग
भूमिका
Stocks
पारिस्थितिकी
आहार
खाद्य पदार्थ
आहार खपत
खोराक
आम नाम
उपशब्द
चपायचय
परभक्षी
ईकोटोकसीकोलौजी
पुनरुत्पत्ति
परिपक्व अवधि
मछलीऔ का अंडे देना
Spawning aggregation
Fecundity
अंडे
Egg development
Age/Size
बाढ़
Length-weight
Length-length
Length-frequencies
मौरफोमैटरिक्स
आकृति विज्ञान
लार्वा
लारवल गतिकी
भर्ती
बहुतायत
BRUVS
संदर्भ
जलीयकृषि
जलीयकृषि रूपरेखा
खींच
आनुवंशिकी
ऐल्लि आवृतियाँ
हैरेटिबिलटी
बीमारी
प्रक्रमण
Nutrients
Mass conversion
सहयोगीयो
तस्वीरे
Stamps, Coins Misc.
ध्वनि
सिगुयटिरा
रफ्तार
तैरने के प्रकार
गिल क्षेत्र
Otoliths
दिमाग
दृष्टि

साधन

Special reports

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इंटरनेट स्रोत

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: वर्ग, प्रजाति | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | राष्ट्रीय आंकड़ासंचय | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, खोज | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 13.3 - 23.6, mean 16.3 °C (based on 199 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5002   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.4 se; based on size and trophs of closest relatives
लौटाव (Ref. 120179):  माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  High vulnerability (61 of 100) .