Kneria auriculata (Pellegrin, 1905)
Airbreathing shellear
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Kneria auriculata
画像によって Gratwicke, B.
画像 | グーグルの画像
画像によって Gratwicke, B.
分類 / 名前 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
> Gonorynchiformes (Milkfishes) > Kneriidae (Shellears)
Etymology: Kneria: From Kner, that studied fishes in the Imperial Museum of Vienna, with Jean Natterer (1817) (Ref. 45335); auriculata: Refers to the cup-shaped process of the operculum on the male (Ref. 13721).
Eponymy: Dr Rudolf Kner (1810–1869) was an Austrian zoologist specialising in ichthyology. [...] (Ref. 128868), visit book page.
More on author: Pellegrin.
Etymology: Kneria: From Kner, that studied fishes in the Imperial Museum of Vienna, with Jean Natterer (1817) (Ref. 45335); auriculata: Refers to the cup-shaped process of the operculum on the male (Ref. 13721).
Eponymy: Dr Rudolf Kner (1810–1869) was an Austrian zoologist specialising in ichthyology. [...] (Ref. 128868), visit book page.
More on author: Pellegrin.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学
分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri
Africa: most mountain and plateau tributaries of the Zambezi, Pungwe, Buzi, Sabi/Save and Runde/Lundi rivers (Ref. 83372) in Zimbabwe, Zambia and Mozambique. Also in the upper Congo River basin (Lualaba, upper Lualaba, Lake Mweru and Luapula) (Ref. 45616) in Democratic Republic of the Congo and Zambia. A relict southern pocket occurs in the Crocodile (Incomati system), Transvaal (Ref. 7248, 52193). Identity of specimens from the Kafue and upper Zambezi requires confirmation (Ref. 52193). Not recorded from coastal areas (Ref. 5214).
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm ?, range 5 - ? cm
Max length : 7.0 cm SL オス/雌雄の選別がない; (Ref. 52193); 最大記録サイズ: 2.50 年 (Ref. 7248)
Max length : 7.0 cm SL オス/雌雄の選別がない; (Ref. 52193); 最大記録サイズ: 2.50 年 (Ref. 7248)
簡単な記述 検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 0; 背鰭 (合計) : 9 - 10; 肛門の骨: 0; 臀鰭: 8 - 11.
Body shape (shape guide): elongated; Cross section: circular.
Body shape (shape guide): elongated; Cross section: circular.
Usually found in small headwater streams with fast water associated with rapids and a boulder stream floor, with or without aquatic vegetation (Ref. 12524). Shoals occur in pools of small, clear, silt-free, rocky streams; reported to breathe air and to climb over damp rocks and up the sides of waterfalls during migrations (Ref. 13721, 52959). Can tolerate living out of the water for a long time if conditions are damp (Ref. 246, 5214, 13721). Scrapes diatoms, algae, and detritus from rock surfaces and also takes small aquatic insects such as mayfly nymphs and midge larvae; matures after a year; breeds in spring and summer, larger females bear up to 600 eggs (Ref. 52959). Moves on to flooded grasslands during the rainy season (Ref. 12524, 13337). Males and females have been observed swimming together, apparently joined side by side by means of the males' opercular disc (Ref. 12524).
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Male and female have been observed swimming side by side apparently joined by the opercular organ of the male; this is probably an adaptation to ensure the efficient external fertilization of ova in a flowing water environment (Ref. 88978). Breeding appears to be correlated with the start and ending of the rainy season; possibly exhibits multiple spawning over a prolonged breeding season (Ref. 88978).
主な参考文献
参考文献のアップロード | 参考文献 | コーディネーター | 協力者
Poll, M., 1984. Kneriidae. p. 129-133. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3565)
CITES
Not Evaluated
人間に対する脅威
Harmless
人間の用途
水産業: 潜在的興味の; 水族館・水槽: 潜在的の
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病気と寄生虫
毒性（LC50）
体組成
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水泳タイプ
泳ぐ速さ
視覚色素
フィッシュ・サウンド
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遺伝子の
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遺伝子の
ヘテロ接合性
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遺伝的多様性
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遺伝的多様性
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モデルに基づく推定値
系統多様性指数 (参照 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
回復力 (参照 120179): 高い, １５か月以下の倍増期間の最小個体群 (Lm=4.6-4.7).