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Mekongina lancangensis Yang, Chen & Yang, 2008

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Image of Mekongina lancangensis
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drawing shows typical species in Cyprinidae.

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> Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Labeoninae
Etymology: Mekongina: From the Mekong river;  lancangensis: Named for the type locality, Lancang, the name of the Chinese reach of the upper Mekong River..
More on authors: Yang, Chen & Yang.

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

; المياه العذبة محيطي. Tropical

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Asia: China.

الحجم / وزن / العمر

Maturity: Lm ?  range ? - ? cm
Max length : 5.8 cm SL ذكر/ مختلط الجنس; (Ref. 79744)

وصف مختصر مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي

Mekongina lancangensis can be distinguished from M. erythrospila by having one pair of rostral barbels (v. no barbels); two rows of tubercles irregularly scattered on the snout and cheeks, with two enlarged tubercles present at each side of the anterior of the snout (v. four rows of tubercles in M. erythrospila); 19–27 rostral marginal lappets (v. 18–21); 38–41 lateral line scales (v. 34–37); 18–20 circumpeduncular scales (v. 16); 5.5 or 6.5 scales in transverse series from dorsal-fin origin to lateral line (D-LL) scales (v. 7 or 7.5); shorter snout length (SN) (31.9–36.9% LH v. 38.6–57.8) and longer anal fin (tip of the depressed rays reaching the base of the caudal fin v. not reaching the base of the caudal fin) (Ref. 79744).

أحياء     المصطلحات (على سبيل المثال epibenthic)

This species was found syntopic with Bangana lippus (Fowler, 1936) during the early flood season, where both share similar body shape and size, as well as a black blotch on the base of the caudal fin. Mekongina lancangensis is readily distinguished from B. lippus in having a rostral cap split into 19-27 papillate lappets (vs. rostral cap smooth) and upper lip degenerated and is discontinuous from the lower lip (vs. upper lip developed, continuous with lower lip) (Ref. 79744).

Life cycle and mating behavior Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae

المرجع الرئيسي Upload your references | مراجع | المنظم | المتعاونين

Yang, J., X.Y. Chen and J.X. Yang, 2008. A new species of the genus Mekongina Fowler, 1937 (Cypriniformes: Cyprinidae) from South China. J. Fish Biol. 73(8):2005-2011. (Ref. 79744)

IUCN Red List Status (Ref. 130435)

  نقص البينات (DD) ; Date assessed: 06 August 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر للأنسان

  Harmless





استخدامات بشرية

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مصادر علي الأنترنت

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | البحث في مراقبي الأسماك | CISTI | Catalog of Fishes: جنس, الانواع | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: الوراثة, نيوكلوتيدة | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | شجرة الحياة | Wikipedia: ذهب, بحث | World Records Freshwater Fishing | Zoobank | سجلات علم الحيوانات

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.6250   [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).
المرونه (Ref. 120179):  عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).