分類 / 名稱
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
Eponymy: Alexandra Mary ‘Lex’ Snyder (d: 1953) is a museum collections manager. [...] (Ref. 128868), visit book page.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 底中水層性. 熱帶
Africa: endemic to Lake Bermin, Cameroon (Ref. 52307, 81260).
非洲: 湖 Bemin ,喀麥隆。
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 5.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 81260)
背棘 (總數) : 15 - 16; 背的軟條 (總數) : 10 - 11; 臀棘: 3; 臀鰭軟條: 7 - 8. Diagnosis: lower pharyngeal jaw robust, with a large, triangular (not heart-shaped) dentigerous plate, covered with stout, sparsely arrayed teeth; oral dentition coarse; outer row teeth stout bicuspids (Ref. 26738, 81260). Anterior rakers not markedly reduced in size; snout acute (Ref. 81260). Ventral margin of lower lip smooth; 10-12 slender gill rakers (Ref. 26738, 81260). Ratio of lower jaw length to lower jaw width > 1 (Ref. 81260). 1-2 inner rows of teeth on both jaws (Ref. 26738, 81260).
Body shape (shape guide): fusiform / normal.
除了 巴可非鯽〔Tilapia bakossiorum〕 以外有別於其他 Bermin 種, 黃非鯽〔Tilapia flava〕 與
覆蓋著的具有三角形的有齒碟結實低的咽頜的 綿非鯽〔Tilapia spongotroktis〕 矮胖的, 稀疏地佈署了齒。 在唇形態學中與 巴可非鯽〔Tilapia bakossiorum〕 區分了: 不顯著地肥大的有平滑的對下唇的邊緣,vs. 唇肥大的以下唇邊緣摺疊而且邊緣。 在口的生齒有別於 黃非鯽〔Tilapia flava〕 : 矮胖的, 厚的-頸部了二頭齒, vs. 細長的, 藉由斜截形的冠。 在上頜與下頜與鰓耙形態學 (細長的, vs. 肉質的具有連接外部而內部的列耙的細齒狀的中央薄膜) 的 綿非鯽〔Tilapia spongotroktis〕 , 與內部列的齒的數字區分了。 (1-2 雙顎內, vs.2-4 在上面的與 2-3 在下頜中) 一個矮小的種, 與雌性在 25 mm SL 達成性成熟, 發表。 (參考文獻 26738)
Feeds primarily on vegetative matter (preferably algae), but also takes detritus, insects, diatoms and small amounts of sponges (Ref. 52307). A dwarf species, with females reaching sexual maturity at 25 mm SL, making this the smallest tilapiine known (Ref. 26738, 52307). The number of eggs produced is accordingly small, with 10-20 eggs usually deposited, preferably in shallow water on various substrates; large colonies composed of many pairs have been observed (Ref. 52307). Pair-bonding, open (Ref. 52307) substratum brooder (Ref. 52307, 81260), with both parents guarding the brood and fry (Ref. 52307).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 湖 Bemin ,喀麥隆。
Dunz, A.R. and U.K. Schliewen, 2013. Molecular phylogeny and revised classification of the haplotilapiine cichlid fishes formerly referred to as "Tilapia". Mol. Phylogenet. Evol. 68(1):64-80. (Ref. 93285)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
極危 (CR) (B1ab(iii)+2ab(iii)); Date assessed: 16 February 2009
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基於模型的估計
系統發育多樣性指數 (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00671 - 0.03113), 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 (參考文獻
69278): 2.8 ±0.1 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
釣魚的脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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