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Teleostei >
Cichliformes (Cichlids, convict blennies)
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Cichlidae (Cichlids)
慈鯛科魚類 (Cichlids) > Pseudocrenilabrinae
Etymology: Sarotherodon: Greek, saros, -ou = sawdust + Greek, ther = animal * Greek, odous = teeth (Ref. 45335).
Eponymy: Gerhard Steinbach (1923–2016) was an entomologist at the Humboldt University of Berlin. He took part in the expedition, led by zoologist Martin Eisentraut (see Konia eisentrauti), during which the type was collected. (Ref. 128868), visit book page.
More on author: Trewavas.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 熱帶; 24°C - 26°C (Ref. 13614); 5°N - 4°N
Africa: endemic to Lake Barombi Mbo, West Cameroon (Ref. 52307, 81260).
非洲: 湖 Barombi Mbo ，喀麥隆西方部的特有種。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 11.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 81260)
背棘 (總數) : 16 - 17; 背的軟條 (總數) : 10 - 11; 臀棘: 3; 臀鰭軟條: 8 - 10; 脊椎骨: 29 - 31. Diagnosis: 19-23 rakers on lower limb of first arch (Ref. 81260). Length of lower pharyngeal jaw 40-50% of head length (Ref. 81260), width 34.5-38.0 (Ref. 2). Pearly yellow in life, with no markings on body; preserved specimens dark grey on back, with a horizontal darker band in some; decurved snout (Ref. 2).
淺藍灰色黃色活著時, 在身體上沒有斑紋。 保存的標本深灰色的背面, 在一些裡面具有一個水平的較黑的條紋。 向下彎曲的吻。 低咽骨長度 45-49.5% 頭長，寬度 34.5-38.0.
Seems to prefer shallow areas near the edges of the lake (Ref. 52307). Occurs in schools at the surface; stomach of specimens which were examined contained organic debris; benthic and epilithic diatoms, and sponge spicules were nearly always present and many had inorganic particles in the stomach; individuals were seen shoveling sand into the mouth, moving it about in the buccopharynx, then spitting out the sand and making swallowing movements (Ref. 2). Lacks marked sexual dichromatism when sexually active (Ref. 81260). Probably a biparental ovophilic mouthbrooder that forms little to no (Ref. 52307) and only temporary pair bonds (Ref. 81260).
成群出現在水表面。 被檢查到的標本的腹部包含了有機的殘礫。 底棲與附在岩石上的矽藻 , 與海綿針狀體幾乎永遠有，而且多數有了腹部的無機的粒子。 個體被見到鏟沙子進入嘴巴,在 buccopharynx 中移動它到處, 然後唾吐出沙子與製造吞運動.(參考文獻 2)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Exhibits biparental mouth-brooding. 非洲: 湖 Barombi Mbo ，喀麥隆西方部的特有種。
Trewavas, E. and G.G. Teugels, 1991. Sarotherodon. p. 425-437. In J. Daget, J.-P. Gosse, G.G. Teugels and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 4. (Ref. 4999)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
極危 (CR) (B1ab(iii)+2ab(iii)); Date assessed: 16 February 2009
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01862 (0.00830 - 0.04177), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.2 ±0.15 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).
