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Clupeiformes (Herrings) >
Ehiravidae (River sprats)
Etymology: Sauvagella: Because of Sauvage, 1860-1880 and 1875-1891; ichtyologist that studied the Ogowe; author of "Histoire naturelle des poissons de Madagascar"; madagascariensis: Named for the island to which it is endemic, Madagascar (Ref. 33664).
Eponymy: Dr Louis César Henri Ėmile Sauvage (1842–1917) was a French palaeontologist, herpetologist and ichthyologist. [...] (Ref. 128868), visit book page.
More on author: Sauvage.
ສະພາບແວດລ້ອມ: ສະພາບແວດລ້ອມ / ເຂດດິນຟ້າອາກາດ / ລະດັບຄວາມເລິກ / ຂອບເຂດການແຈກຢາຍ
ນິເວດວິທະຍາ
; ນ້ຳຈືດ; ນ້ຳກ່ອຍ ກ່ຽວກັບ (ຢູ່) ໄກ້ໜ້ານ້ຳໃນທະເລເປີດ. Tropical; 11°S - 26°S, 42°E - 50°E (Ref. 188)
Africa: mid and lower reaches of eastern coastal rivers and Pangalanes Canal network in Madagascar (Ref. 188, 33664).
ຂະໜາດ / ນ້ຳໜັກ / ອາຍຸ
ການຈະເລີນເຕັມໄວ: Lm ?  range ? - ? cm
Max length : 6.6 cm SL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 33664)
ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ) : 0; ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ) : 13 - 17; ຄີ(ໜາມ) ແຂງຢູ່ຄີກົ້ນປາ
ກຸ່ມປາກະດູກແຂງ
ຄວາມຖີ່ຂອງກຸ່ມຖ່າຍທອດພັນ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລແລະໄປໄຂ່ຢູ່ນ້ຳຈືດ
ຄີກົ້ນຂອງປາ
ສັດທີ່ມີກະດູກສັນຫັຼງ
ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ: 0; ຄີກົ້ນຂອງປາ: 17 - 19; ສັດທີ່ມີກະດູກສັນຫຼັງ: 41 - 43. Diagnosis: Body elongate, a little compressed; belly rounded, without pre-pelvic scutes, but a pelvic scute present with slender lateral arms; gillrakers few, 17-20 gillrakers on lower limb of first arch; pelvic fin with 1 unbranched and 7 branched finrays, a little anterior to dorsal fin origin; last two anal finrays not separate from others (Ref. 188, 33664). It is distinguished from other non-scuted clupeids of Spratelloides, Dussumieria and Etrumeus by presence of a normal pelvic scute vs. W-shaped (Ref. 188). It is distinguished from Sauvagella robusta by a higher vertebral number, 41-43 vs. 38-40; a shallower body, 15.8-21.1% of standard length vs. 20.8-27.4%; a longer snout, 26.2-33.7% of head length vs. 18.5-26.6%; and a higher anal fin ray count, 17-19 vs. 13-17 (Ref. 33664).
Body shape (shape guide): fusiform / normal; Cross section: oval.
Found in freshwaters, possibly tolerating brackish water (Ref. 188); from sea level to about 450m, mostly in smaller rivers and streams and usually in forested areas (Ref. 56161). Probably planktivorous (Ref. 56161).
ວົງຈອນຊີວິດ ແລະພຶດຕິກໍາການຫາຄູ່
ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ
Stiassny, M.L.J., 2002. Revision of Sauvagella Bertin (Clupeidae; Pellonulinae; Ehiravini) with a description of a new species from the freshwaters of Madagascar and diagnosis of the Ehiravini. Copeia 2002(1):67-76. (Ref. 33664)
ສະຖານະພາບບັນຊີແດງຂອງ IUCN (Ref. 130435: Version 2025-2 (Global))
ໄພຂົ່ມຂູ່ຕໍ່ມະນຸດ
Harmless
ການນໍາໃຊ້ຂອງມະນຸດ
ການປະມົງ: ທີ່ບໍ່ມີຄວາມສົນໃຈ
ເຄື່ອງມື
ບົດລາຍງານພິເສດ
ດາວໂຫລດ XML
ແຫຼ່ງອີນເຕີເນັດ
ການຄາດຄະເນໂດຍອີງໃສ່ແບບຈໍາລອງ
ດັດຊະນີຄວາມຫຼາກຫຼາຍທາງຊີວະພາບ (ເອກະສານອ້າງອີງ
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00380 - 0.02091), b=3.03 (2.83 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ຊັ້ນເຂດຮ້ອນ (ເອກະສານອ້າງອີງ
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
ຄວາມຢືດຢຸ່ນ (ເອກະສານອ້າງອີງ
120179): ສູງ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງໜ້ອຍກວ່າ 15 ເດືອນ (Preliminary K or Fecundity.).
ຄວາມສ່ຽງຕໍ່ການຫາປາ (Ref.
59153): Low vulnerability (10 of 100).
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