Distichodus antonii : fisheries

Distichodus antonii Schilthuis, 1891

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Distichodus antonii
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Actinopterygii 輻鰭魚綱 (條鰭魚) > Characiformes (Characins) > Distichodontidae (Distichodus)
Etymology: Distichodus: Greek, di = two + Greek, stix, stichos = line, row (Ref. 45335);  antonii: Distichodus antonii was probably named in memory of Anton Greshoff 1855-1905 (Nieuw Letterkundig Magazijn) who collected the holotype (Ref. 96324).

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

; 淡水 大洋性.   熱帶

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

Africa: widespread Congo basin endemic, from Marine Lower Congo up to Upper Lualaba, in Cameroon, Central African Republic, Republic of Congo and Democratic Republic of the Congo (Ref. 96324). Absent from Luapula-Mweru (Ref. 7094, 96324).
非洲: 剛果河流域 (Luapula-Moero 排除) 與盧阿拉巴河。 安東氏複齒脂鯉〔Distichodus antonii〕 蘭氏複齒脂鯉〔Distichodus langi〕 可能地是相同的種。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 55.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 96324)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 0; 背的軟條 (總數): 21-25; 臀棘 0; 臀鰭軟條: 12 - 14. Diagnosis: Within the Congo basin, Distichodus antonii can be distinguished from D. affinis, D. altus, D. decemmaculatus, D. noboli, D. notospilus and D. teugelsi by its higher total number of lateral line scales, 52-64 vs. less than 46 in the other species; and from D. maculatus by the absence of large, dark spots all over the body, vs. 9-14 vertical dark bars instead, and a higher number of dorsal fin rays, 21-25 vs. 19-21 (Ref. 96324). Distichodus antonii can be separated from all remaining Congo species by its terminal, vs. inferior, mouth, with the exception of D. lusosso (which has a distinctive elongate snout and only 6 to 8 vertical, dark bars), and by its lower number of scales between the lateral line and the dorsal fin, 10-12 vs. 13-17 (Ref. 96324).

生物學特性     字彙 (例如 epibenthic)

The fry and juveniles of Distichodus antonii live in aquatic prairies and in plant fringes; adults feed in Echinochloa patches and live at the edge of streams along islands and even on the bottom in the middle of the stream (Ref. 96324). The species is a phytophagous species; stomachs almost always contain plant fragments, with easily recognizable twigs and leaves of Echinochloa, which comprises the largest part of their diet (Ref. 96324). It has two annual periods of reproduction and spawning and egg deposition have to take place at the border of the stream, just before the flood. Maximum reported total length is 550 mm (Ref. 1878), although it is stated it can reach a size of more than 800 mm (Ref. 7094, 96324). Maximum weight was recorded at nearly 10 kg (Ref. 7094).

最大重量記錄為將近 10 公斤。 (參考文獻 7094)

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

非洲: 剛果河流域 (Luapula-Moero 排除) 與盧阿拉巴河。 安東氏複齒脂鯉〔Distichodus antonii〕 蘭氏複齒脂鯉〔Distichodus langi〕 可能地是相同的種。

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

Moelants, T., V. Mbadu Zebe, J. Snoeks and E. Vreven, 2014. A review of the Distichodus antonii assemblage (Characiformes: Distichodontidae) from the Congo basin. J. Nat. Hist. 48(27-28):1707-1735. (Ref. 96324)

IUCN 瀕危狀態 (Ref. 120744)

  無危 (LC) ; Date assessed: 16 February 2009

CITES (Ref. 118484)

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. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00551 - 0.02875), b=3.01 (2.81 - 3.21), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
回復力 (Ref. 120179):  中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
瀕危性 (Ref. 59153):  Low to moderate vulnerability (32 of 100) .
價格種類 (Ref. 80766):   Unknown.