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Clupeiformes (Herrings) >
Engraulidae (Anchovies) > Engraulinae
Etymology: Anchoviella: Italian ancioa = anchovy (Ref. 45335); sanfranciscana: The specific name sanfranciscana is a noun in the genitive case that refers to the place of occurrence of the species, at the São Francisco River.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
; آب شيرين; لب شور سطح زی. Tropical
South America: upstream and estuary of São Francisco River, Brazil.
اندازه / وزن / سن
بلوغ: Lm ?  range ? - ? cm
Max length : 12.8 cm SL جنس نر / بدون خواص جنسي; (Ref. 116921)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
شعاع نرم باله پشتي (کل) : 13 - 15; شعاع نرم باله مخرجي: 13 - 16; مهره ها: 42. Anchoviella sanfranciscana is diagnosed from its congeners by the following characteristics: wide silver lateral band present, with a well-defined dark brown and yellow lateral band above - its total width is 1.5 to 2 times wider than the ocular diameter, (vs. width is less than 1 time in other congeners); distance from tip of dorsal fin to start of anal fin is similar in size as the dorsal fin (vs. distance is smaller in other congeners, except A. perfasciata); and 29-35 gill rakers in lower branch of the first branchial arch (vs. maximum is 27 in other congeners, except for A. cayennensis) (Ref. 116921).
Body shape (shape guide): fusiform / normal.
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Barbosa, J.M., A.G. Gomes da Silva, A.R. da Rocha Araújo and M.F. Carvalho, 2017. A new species of Anchoviella Fowler, 1911 (Clupeiformes: Engraulidae) from the mouth of the São Francisco River, Brazil. ActaFish 5(3):162-168. (Ref. 116921)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00603 (0.00272 - 0.01333), b=3.19 (3.01 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
سطح تروفیک (مرجع 69278) |
3.3 ±0.4 se; based on size and trophs of closest relatives |
جهندگی (مرجع 120179) |
زياد, كمينه زمان لازم براي دو برابر شدن جمعيت ، كمتر از 15 ماه (Preliminary K or Fecundity.). |
آسیبپذیری ماهیگیری (Ref. 59153) |
Low vulnerability (16 of 100). 🛈 |