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).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 大洋性; 深度上下限 20 - 220 m (Ref. 94786). 熱帶
Africa: Lake Malawi.
非洲: 馬拉威湖。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 14.5 range ? - ? cm
Max length : 15.4 cm SL 雄魚/尚未辨別雌雄; (Ref. 55949); 最大體重: 60.00 g (Ref. )
Diagnosis: more slender and elongate than congenerics, with smaller head, eyes and mouth; ripe males with yellow-white dorsal "blaze" (Ref. 55949).
鑑別: 更細長的與延長超過同屬的, 有小的頭部，眼與嘴; 成熟的雄性有黃色-白色的背部 " 火焰 ".(參考文獻 55463)
描述: 眼睛大小可變的, 但是直徑通常少於吻的長度; 小的, 向上角的能伸展的嘴; 長又緊密的鰓耙.(參考文獻 55463)
體色 身體銀色的, countershaded; 活的雌性與非繁殖期的雄性時常展現一個明亮的金屬紫色的光輝; 雄性在繁殖方面，服裝是深灰色的到黑色的, 具有一個鮮黃色的-白色的背部火焰; 成熟雄性深灰色的背面, 銀灰色在側面上與腹側灰白的; 背鰭灰色的-白色或黃色, 有時只有在鰭的末梢部部份上, 下面的部份是深灰色或黑色的; 背部的火焰白色或黃色, 有時佈滿黑色的斑點, 從吻部到背鰭延伸, 而且有時全部沿著身體上半部表面到尾梗; 尾鰭灰色的, 有時有淡黃色的上、下邊緣; 腹鰭與臀鰭灰色的, 白色的或黃色; 在臀鰭上的 1-2 大又灰白的 eggspots.(參考文獻 55463)
Found inshore and offshore, on reefs and over the shelf; abundant over the anoxic zone; female mouthbrooder (Ref. 55949). Zooplanktivorous; probably the most abundant species in Lake Malawi (Ref. 94786).
發現於岸邊了與外海, 在礁上與遍及大陸棚; 豐富的遍及缺氧的區域; 雌性的口孵者.(參考文獻 55463)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Males in breeding dress were found throughout the year; ripe adults and mouthbrooding females were recorded at depths of 50-125m; largest fry found in the mouth of females were 3cm TL, but a maximum of only 1-2 such large fry were found per female; juveniles of 40-50mm were found in many locations (Ref. 55949).非洲: 馬拉威湖。
Turner, G.F., 1994. Description of a commercially important pelagic species of the genus Diplotaxodon (Pisces: Cichlidae) from Lake Malawi, Africa. J. Fish Biol. 44(5):799-807. (Ref. 36759)
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
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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=0.01445 (0.00674 - 0.03099), b=2.99 (2.82 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.1 ±0.46 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 (10 of 100).
