Marcusenius krameri Maake, Gon & Swartz, 2014
分類 / 名前 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
> Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Marcusenius: Becasue of J. Marcusen, author of "Zur Phauna des Schwarzen Meeres", 1867; ichthyologist; krameri: Marcusenius krameri is named for Prof. Bernd Kramer from the Zoological Institute of the University of Regensburg, Germany, in recognition of his contribution to the systematics of southern African mormyrids (Ref. 95448).
Eponymy: Dr Johann Andreas Marcusen (1817–1894) was a Latvian of German descent who was a physician, ichthyologist and zoologist. [...] Dr Leo Bernd Kramer is a German ichthyologist who was Professor at the Zoological Institute of the University of Regensburg, Germany until he retired (2009). [...] (Ref. 128868), visit book page.
Etymology: Marcusenius: Becasue of J. Marcusen, author of "Zur Phauna des Schwarzen Meeres", 1867; ichthyologist; krameri: Marcusenius krameri is named for Prof. Bernd Kramer from the Zoological Institute of the University of Regensburg, Germany, in recognition of his contribution to the systematics of southern African mormyrids (Ref. 95448).
Eponymy: Dr Johann Andreas Marcusen (1817–1894) was a Latvian of German descent who was a physician, ichthyologist and zoologist. [...] Dr Leo Bernd Kramer is a German ichthyologist who was Professor at the Zoological Institute of the University of Regensburg, Germany until he retired (2009). [...] (Ref. 128868), visit book page.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学
; 新鮮な水 底生の漂泳性. Tropical; 17°C - 27°C (Ref. 95448); 24°S - 25°S
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: Limpopo River and several of its tributaries in South Africa (Ref. 95448).
サイズ / 重さ / 年齢
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) : 22 - 25; 肛門の骨: 0; 臀鰭: 28 - 31; 脊つい: 44. Diagnosis: Marcusenius krameri can be distinguished from its congeners by following characters: middle body depth 21.9-28.1% of standard length; distance from dorsal fin origin to end of caudal peduncle 39.9-41.7% of standard length; distance from anal fin origin to end of caudal peduncle 42.8-44.9% of standard length; dorsal fin length 15.5-20.0% of standard length; anal fin length 23.2-25.5% of standard length; depth of caudal peduncle 26.0-40.6% of its length; scales around caudal peduncle 16; total vertebrae 44; anterior gill rakers (5-6)+(5); total anterior gill rakers 10-11; posterior gill rakers (8)+(9); total posterior gill rakers 17; dorsal fin rays 22-25; anal fin rays 28-31; scales along lateral line 69-72; conical teeth on upper/lower jaws 4-6 (Ref. 95448).
Body shape (shape guide): elongated; Cross section: compressed.
Body shape (shape guide): elongated; Cross section: compressed.
Individuals of this species were found in groups; during the day they were commonly encountered below undercut river banks, especially in dense networks of tree roots or reed beds along the stream margins; places with shallow water and slow-flowing reaches of rivers and streams are especially attractive to them (Ref. 95448). Large numbers of small juveniles were found in bushes of aquatic reeds and floating grass on the periphery of the river or in side channels (Ref. 95448).
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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
Maake, P.A., O. Gon and E.R. Swartz, 2014. Descriptions of three new species of Marcusenius Gill, 1862 (Teleostei: Mormyridae) from South Africa and Mozambique. Zootaxa 3780(3):455-480. (Ref. 95448)
CITES
Not Evaluated
人間に対する脅威
Harmless
人間の用途
FAO - Publication: search | FishSource |
より多くの情報
ライフサイクル
繁殖
成熟
成熟度／エラ
生産力
放精
産卵群
卵
卵の開発
幼生
幼生の動力
繁殖
成熟
成熟度／エラ
生産力
放精
産卵群
卵
卵の開発
幼生
幼生の動力
解剖学
カマ
脳
オトリス
カマ
脳
オトリス
生理学
体組成
栄養素
酸素消費
水泳タイプ
泳ぐ速さ
視覚色素
フィッシュ・サウンド
病気と寄生虫
毒性（LC50）
体組成
栄養素
酸素消費
水泳タイプ
泳ぐ速さ
視覚色素
フィッシュ・サウンド
病気と寄生虫
毒性（LC50）
遺伝子の
ゲノム
遺伝子の
ヘテロ接合性
遺伝
遺伝的多様性
ゲノム
遺伝子の
ヘテロ接合性
遺伝
遺伝的多様性
用具
特記事項
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インターネットの情報源
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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=0.00562 (0.00248 - 0.01273), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
|
栄養段階 (参照 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
|
回復力 (参照 120179) |
高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.). |
|
漁業の脆弱性 (Ref. 59153) |
Low vulnerability (24 of 100). 🛈 |