分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
慈鯛科魚類 (Cichlids) > Pseudocrenilabrinae
Etymology: Diplotaxodon: Greek, diploos = twice + Greek, taxis = disposition + Greek, odous = teeth (Ref. 45335).
More on author: Trewavas.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; 深度上下限 34 - 114 m (Ref. 55949). 熱帶; 12°S - 15°S
Africa: south end of Lake Malawi (Ref. 5595, 5628).
非洲: 馬拉威湖的南端的特有種。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 20.4 cm SL 雄魚/尚未辨別雌雄; (Ref. 55949)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 14 - 15; 背的軟條 (總數) : 11 - 13; 臀棘: 3; 臀鰭軟條: 10 - 11. Diagnosis: Relatively shallow body with flat dorsal profile; relatively large, upwardly-pointing mouth with strongly protruding lower jaw; large number of gill-rakers (Ref. 55949).
鑑別: 相當淺的身體有平坦的背面輪廓; 相當大的, 朝上的強烈地嘴部具有凸出下頜; 大量的鰓耙.(參考文獻 55463)
描述: 一般和非常大的齒與掠食性的面容延長; 眼不 particulary 大的; 吻狹窄的而且相當在輪廓中凹曲, 具有一個突出的上頜骨前的莖; 神經突起中等的到突出的.(參考文獻 55463)
體色 雌性與非繁殖雄性有銀色的 countershaded 身體, 灰色的背面; 吻深色的; 身體有一個整體的銀色光輝; 鰭通常灰色的, 雖然腹鰭可能是白色; 雄性在繁殖方面，服裝發育一個較深色的頭部與背面，黑眼珠，吻與鰭; 臀鰭有 1-2 大的黃色 eggspots.(參考文獻 55463)
Found in open water at mostly deep levels, where it can form enormous shoals (Ref. 5595). It is a piscivore that mainly feeds on lake sardine, Engraulicypris sardella (Ref. 5595).
出現於在大部份深的水平開放水域, 在那裡它能形成巨大的淺灘。 吃魚, 主要吃湖沙丁魚， 沙丁鯷波魚〔Engraulicypris sardella〕 .(參考文獻 5595)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 馬拉威湖的南端的特有種。
Turner, G.F., R.L. Robinson, P.W. Shaw and G.R. Carvalho, 2004. Identification and biology of Diplotaxodon, Rhamphochromis and Pallidochromis. p.198-251. In Snoeks, J. (ed.) The cichlid diversity of Lake Malawi/Nyasa/Niassa: identification, distribution and taxonomy. Cichlid Press, El Paso, USA, 360p. (Ref. 55949)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 22 June 2018
人類使用
漁業: 商業性; 水族館: 商業性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.2 ±0.73 se; based on food items.
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 (15 of 100).
Nutrients (Ref.
124155): Calcium = 125 [66, 251] mg/100g; Iron = 1.48 [0.83, 2.86] mg/100g; Protein = 18.5 [16.9, 20.0] %; Omega3 = 0.607 [0.214, 1.783] g/100g; Selenium = 72.9 [28.3, 177.9] μg/100g; VitaminA = 109 [25, 378] μg/100g; Zinc = 1.61 [1.07, 2.49] mg/100g (wet weight);
