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Petersius conserialis Hilgendorf, 1894

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Petersius conserialis
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Teleostei > Characiformes (Characins) 脂鯉目 (Characins) > Alestidae (African tetras) Alestidae (African tetras)
Etymology: Petersius: In naming Petersius Hilgendorf (1894) honored the naturalist and curator Wilhelm C.H. Peters of the Museum für Naturkunde, Berlin (Ref. 127953).
More on author: Hilgendorf.

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

; 淡水 大洋性. 熱帶; 22°C - 26°C (Ref. 2059)

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Africa: endemic to lowland regions of the Ruvu and Rufiji rivers in the Pwani Region of eastern Tanzania (Ref. 4967, 127953).
非洲: 坦尚尼亞.(參考文獻 4967)

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 14.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 42032)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 0; 背的軟條 (總數) : 10; 臀棘: 0; 臀鰭軟條: 21 - 23; 脊椎骨: 36 - 37. Diagnosis: This species is diagnosed by a unique cuspidation pattern of the inner row premaxillary dentition with the cusps of the cutting-edge oriented buccally, vs. lingually oriented in all other alestids, and the possession of a distinctively shaped margin of the supraoccipital with a steep anterodorsal convexity at the junction of the parietals followed by a dorsomedial concavity on the surface of the supraoccipital (Ref. 127953).


身體高度 3.1 倍標準的長度.(參考文獻 42032) 頭長 3.75 倍標準的長度.(參考文獻 42032) 下頜伸出。 (參考文獻 42032) 腔壁的囟門不存在。 (參考文獻 42032) 沒有內在又下方的齒.(參考文獻 42032) 犬齒數字: 上頜 3 的外部列，上頜 4-6 的內部列, 下頜 4-7 的外部列.(參考文獻 42032) 垂直的, 不絲狀的背鰭與尾鰭鰭.(參考文獻 42032) 在尾鰭的中央鰭條上延伸的尾梗上的大的黑色斑點.(參考文獻 42032)

生物學特性     字彙 (例如 epibenthic)

Occurs in sandy river courses and floodplain lakes with bushy shorelines with forested or grassy margins (Ref. 127953).

棲息於河。 (參考文獻 4967)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚

非洲: 坦尚尼亞.(參考文獻 4967)

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

Melo, B.F. and M.L.J. Stiassny, 2022. Systematic review and cranial osteology of Petersius with redescription of P. conserialis (Teleostei: Alestidae) from the Rufiji and Ruvu rivers of Tanzania. Am. Mus. Nov. 3992:1-16. (Ref. 127953)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 31 January 2006

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00528 - 0.02495), b=3.00 (2.82 - 3.18), 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.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).