Petrocephalus christyi

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Petrocephalus christyi Boulenger, 1920

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Petrocephalus christyi
拍攝者 Mertens, P.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Osteoglossiformes (Bony tongues) 骨舌魚目 (Bony tongues) > Mormyridae (Elephantfishes) 象鼻魚科 (Elephantfishes)
Etymology: Petrocephalus: Latin, petra = stone + Greek, kephale = head (Ref. 45335).
Eponymy: Dr Cuthbert Christy (1863–1932) was a physician and zoologist who was particularly known for his work on sleeping sickness. [...] (Ref. 128868), visit book page.
More on author: Boulenger.

Environment: milieu / climate zone / 深度上下限 / distribution range 生態學

; 淡水 居於水底的; pH range: 5.0 - ?. 熱帶; 22°C - 24°C (Ref. 12468)

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

Africa: widespread in the Congo River basin, from the rapids just below Pool Malebo (Ref. 85331) to the upper Lualaba (Ref. 45616), in Central African Republic (Ref. 113655), Republic of Congo (Ref. 85331), Democratic Republic of the Congo (Ref. 4910, 41585, 45441, 106245, 106290) and Angola (Ref. 11970, 120641).
非洲: 剛果河流域。

大小 / 重量 / 年齡

成熟度: Lm ?  range ? - ? cm
Max length : 7.7 cm TL 雄魚/尚未辨別雌雄; (Ref. 11970)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背的軟條 (總數) : 24; 臀鰭軟條: 28 - 29. Petrocephalus christyi is distinguished from all other Petrocephalus species in Central Africa by the following combination of characteristics: dorsal fin with 22-24 branched rays, anal fin with 25-29 branched rays, eye large (HL/ED=3,1-4,2), mouth small, 9-13 teeth in the upper jaw, 17-22 teeth in the lower jaw (Ref. 85331). Melanin pattern consisting of two characteristic black patches: (1) a distinct round mark below the anterior base (first to the fifth rays) of the dorsal fin; and (2) a somewhat diffuse crescent-like mark, centered at the base of the caudal fin and extending onto the fleshy dorsal and ventral lobes of this fin (Ref. 85331).
Body shape (shape guide): fusiform / normal.

生物學特性     字彙 (例如 epibenthic)


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

非洲: 剛果河流域。

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

Gosse, J.-P., 1984. Mormyridae. p. 63-122. 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. 3203)

IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)

  無危 (LC) ; Date assessed: 16 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





人類使用

FAO - Publication: search | FishSource |

更多資訊

營養生態學
Food items (preys)
食性組成
食物消耗量
Food rations
捕食者
生態學
生態學
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Population dynamics
成長參數
Max. ages / sizes
Length-weight rel.
Length-length rel.
長度-頻率
Mass conversion
入添量
豐度
Life cycle
繁殖
成熟度
Maturity/Gills rel.
孕卵數
產卵場
Spawning aggregations
卵
卵發育
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遺傳學
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遺傳率
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水產養殖描述
品種
Ciguatera cases
Stamps, coins, misc.
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型態特徵
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參考文獻
參考文獻

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網路資源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | 檢查 FishWatcher | CISTI | Catalog of Fishes: 屬, 種 | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | 樹狀分類階層 | Wikipedia: 去, 搜尋 | Zoobank | 動物學的記錄

Estimates based on models

Phylogenetic diversity index (參考文獻 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00838 - 0.02861), b=2.88 (2.72 - 3.04), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
營養階層 (參考文獻 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
回復力 (參考文獻 120179):  高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100). 🛈