Sauvagella robusta, Amboaboa round herring : fisheries

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Sauvagella robusta Stiassny, 2002

Amboaboa round herring
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Sauvagella robusta
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分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Actinopteri > Clupeiformes (Herrings) 鯡形目 (Herrings) > Clupeidae (Herrings, shads, sardines, menhadens) 鯡科 (Herrings, shads, sardines, menhadens) > Ehiravinae
Etymology: Sauvagella: Because of Sauvage, 1860-1880 and 1875-1891; ichtyologist that studied the Ogowe; author of "Histoire naturelle des poissons de Madagascar";  robusta: Named in reference to the deep body of the species, which is evident even in the juvenile specimens (Ref. 33664).

Environment: milieu / climate zone / depth range / distribution range 生態學

; 淡水 大洋性; pH range: ? - 8.3.   熱帶

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Africa: Sofia River drainage in Madagascar (Ref. 33664, 121308).
非洲: 馬達加斯加。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 4.7 cm SL 雄魚/尚未辨別雌雄; (Ref. 33664)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 0; 背的軟條 (總數): 11-15; 臀棘 0; 臀鰭軟條: 13 - 17; 脊椎骨: 38 - 40. Diagnosis: Body relatively elongate; belly rounded, without pre-pelvic scutes, but a pelvic scute present with slender lateral arms; gillrakers reduced in number, 15-19 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. 33664). It is distinguished from Sauvagella madagascariensis by lower vertebral number, 38-40 vs. 41-43; deeper body, 20.8-27.4% of standard length vs. 15.8-21.1%; a shorter snout, 18.5-26.6% of head length vs. 26.2-33.7%; and a lower anal fin ray count, 13-17 vs. 17-19 (Ref. 33664).
身體縱深的,20.8-27.4% SL。 吻短的 18.5-26.6% HL。

生物學特性     字彙 (例如 epibenthic)

Found in a river flowing over a rock and sand bed and forming numerous small rapids alternating with quieter pools (Ref. 33664). The apparently restricted distribution of this species combined with ongoing deforestation and erosional situation within the river basin will inevitably increase stress on the habitat rendering the species vulnerable to future decline (Ref. 33664).

採集自小的左邊標本岸堤 Mangarahara 河 (索非亞河流域) 的支流, Ambomboa 河。 (= Amboaboa) 生活在岩石與沙床有很多的小迅速的被其次為的較安靜的水池之上。 雖然 Ambomboa 與 Mangarahara 族群現在顯得健康的, 明顯人侷限的分佈組合的與進行中的採伐森林與河流域裡面的淤泥侵蝕將不可避免在棲息地上增加壓力對將來的減少使得此魚種脆弱.(參考文獻 33664)

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

非洲: 馬達加斯加。

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

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)

IUCN 瀕危狀態 (Ref. 123251)

  瀕危 (EN) (B2ab(iii)); Date assessed: 29 June 2016

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00167 - 0.01091), b=3.06 (2.83 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.1   ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
瀕危性 (Ref. 59153):  Low vulnerability (10 of 100) .
價格種類 (Ref. 80766):   Low.