Maculabatis ambigua Last, Bogorodsky & Alpermann, 2016

Baraka"s whipray
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Image of Maculabatis ambigua (Baraka\"s whipray)
Maculabatis ambigua
No image available for this species;
drawing shows typical fish in this Family.

التصنيف / Names الأسماء الشائعة | مرادفات | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

أشلاق (القروش و الشفانين) (sharks and rays) > Myliobatiformes (Stingrays) > Dasyatidae (Stingrays) > Urogymninae
Etymology: ambigua: Name from Latin 'ambiguus' meaning uncertain, doubtful; referring to its uncertain species- level uniqueness, as it very closely resembles Maculabatis gerrardi from the northern Indian Ocean and M. randalli from the nearby Persian Gulf but is more closely related to white-spotted members of the genus.

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

; بحري قاعية التغذية و المعيشة; نطاق العمق 10 - 60 m (Ref. 111065).   Tropical

التوزيع دول | مناطق الفاو | النظام البيئي | الظهور | Point map | مقدمة | Faunafri

Western Indian Ocean: Red Sea to Tanzania (Zanzibar).

الحجم / وزن / العمر

Maturity: Lm ?  range ? - ? cm
Max length : 90.0 cm WD ذكر/ مختلط الجنس; (Ref. 111065); 84.0 cm WD (female)

وصف مختصر الوصف الخارجي | قياسات المظهر الخارجي

This species is distinguished by the following set of characters: rhomboidal disc with its axis of greatest width well forward, snout tip to maximum disc width 37% (35-39%) DW; short preorbital snout with small apical lobe, rather obtuse, snout angle 121-127°; pectoral-fin apices are narrowly rounded, angle 86-92°; orbits are moderately small, protruding slightly; mouth relatively narrow, its width 6.2-7.0% DW; small pelvic fins, length 17-19% DW, width across base 13-14% DW; preoral snout length is 2.8-3.1 times internasal width, 19-21% DW, interorbital distance 2.0-2.2 times orbit length, prenasal length 2.2-2.4 times internasal width; subcircular tail with longitudinal ventral groove is behind caudal sting; tail weakly depressed posteriorly, with longitudinal lateral ridge on each side in subadults; an enlarged, seed-shaped, suprascapular thorn usually followed by up to 5 much smaller primary denticles in adults (suprascapular thorn may be preceded by a few much smaller primary denticles in early juveniles); a band of secondary denticles suboval (in subadults), very broad (its width across scapulocoracoid much narrower than its width at spiracles), with sharply-defined lateral margins, broad and semi-truncate near tail base; band fully developed and covering entire dorsal surface of tail by 49 cm DW; colour of dorsal surface mainly uniformly brownish, disc margin paler brown dorsally and ventral disc uniformly whitish, not obviously black edged; in subadults, darker dorsal surface of tail is sharply demarcated from slightly paler ventral surface (median furrow dark and contrasted with skin adjacent); in juveniles, the dorsal post-sting tail has conspicuous, alternating, black-and-white saddles that persist nearly to tail tip, ventral tail uniformly greyish; pectoral-fin radials 130-135; total vertebral count (excluding first synarcual centra) 108-116, monospondylous centra 44-46, pre-sting diplospondylous centra 64-67 (Ref. 111065).

أحياء     المصطلحات (على سبيل المثال epibenthic)

A typical inhabitant of soft substrata and are trawled in shallow water (Ref. 111065). Biology unknown (Ref. 114953).

Life cycle and mating behavior النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae

المرجع الرئيسي Upload your references | مراجع | المنظم : McEachran, John | المتعاونين

Last, P.R., S.V. Bogorodsky and T.J. Alpermann, 2016. Maculabatis ambigua sp. nov., a new whipray (Myliobatiformes: Dasyatidae) from the Western Indian Ocean. Zootaxa 4154(1):66-78. (Ref. 111065)

IUCN Red List Status (Ref. 119314)


CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر للأنسان

  Harmless





استخدامات بشرية

FAO(Publication : search) | FishSource |

مزيد من المعلومات

دول
مناطق الفاو
النظام البيئي
الظهور
مقدمة
Stocks
البيئة
التغذية
عناصر الغذاء
استهلاك الأغذية
Ration
الأسماء الشائعة
مرادفات
الأيض
مفتريسات
علم السميات البيئية
التكاثر
النضج
وضع البيض
تجمعات وضع البيض
الخصوبة
بيض
تطور البيضة
العمر/ الحجم
نمو
الطول-الوزن
الطول-الطول
الطول- الترددات
قياسات المظهر الخارجي
الوصف الخارجي
Larvae
حركة انتقال اليرقات
توظيف
الوفرة
مراجع
الأستزراع المائي
ملف الأستزراع المائي
سلالات
جيني
تواتر الأليل
التوريث
الأمراض
معالجة
Mass conversion
المتعاونين
صور
Stamps, Coins Misc.
اصوات
التسمم باكل السمك
سرعة
نوع السباحة
منطقة الخياشيم
عظمة الأذن
دماغ
رؤية

أدوات

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مصادر علي الأنترنت

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.00606 - 0.04338), b=3.00 (2.77 - 3.23), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
مستوى غذائي (Ref. 69278):  3.7   ±0.4 se; Based on size and trophs of closest relatives
المرونه (Ref. 69278):  .
عرضة للخطر (Ref. 59153):  High to very high vulnerability (66 of 100) .