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
Etymology: Haplochromis: Greek, Haploos = single + Greek, chromis = a fish, perhaps a perch (Ref. 45335); coprologus: The name coprologus comes from the Greek word for dustman; 'κοπρολόγος', the name refers to the detritivorous feeding habits of this species, collecting detritus from mud bottoms (Ref. 85523).
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.
Africa: Lake Victoria (Ref. 85523).
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 7.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 85523)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
脊椎骨: 28 - 30. Diagnosis: Haplochromis coprologus is a small sized (less than 8 cm standard length), micrognathic species with a diamond-shaped body outline, dorsal head profile straight to incurved above the eye; mouth oblique with relatively small, mainly bicuspid teeth (Ref. 85523). It differs from Haplochromis erythrocephalus, the only other described small species with similar body outline, in live colouration of sexually active males: H. coprologus is almost completely black, whereas H. erythrocephalus has a bright red head and the remainder of the body colouration is yellowish; further, differences are present in interorbital width, snout length, eye length, lower jaw length and the lower jaw length/width ratio (Ref. 85523). Haplochromis coprologus differs from the similarly coloured H. piceatus mainly in body depth, which is higher in H. coprologus than in the sympatric population of H. piceatus from the Mwanza Gulf, and a larger eye length (Ref. 85523). The reddish parts in the caudal and anal fin of H. coprologus are generally smaller than in H. piceatus; moreover, in H. coprologus these parts are generally dark red and in H. piceatus orange to orange-red (Ref. 85523). Haplochromis coprologus differs from H. antleter, which has a similar male colouration, in its dorsal head profile which is straight to incurved above the eye in H. coprologus and moderately curved in H. antleter; the lower jaw in H. coprologus is longer, narrower and more oblique than in H. antleter; the number of gill rakers on the lower part of the first gill arch is higher in H. coprologus, 11-12, than in H. antleter, 10 (Ref. 85523).
Body shape (shape guide): fusiform / normal.
Before the ecological changes, this species occurred in the sub-littoral areas of the Mwanza Gulf, mainly over mud bottoms; juveniles occured in sheltered bays (Ref. 85523). It fed mainly on detritus during daytime; other important food items comprised the diatom Aulacoseira and copepods (Ref. 85523). This species is a female mouth brooder; like most other detritivorous species, it is a seasonal spawner; sexually active males were abundant from March till October, brooding females were abundant from March till September (Ref. 85523).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
This species is a female mouth brooder; like most other detritivorous species, it is a seasonal spawner; sexually active males were abundant from March till October, brooding females were abundant from March till September (Ref. 85523).
de Zeeuw, M.P., M. Mietes, P. Niemantsverdriet, S. ter Huurne and F. Witte, 2010. Seven new species of detritivorous and phytoplanktivorous haplochromines from Lake Victoria. Zool. Meded. Leiden 84:201-250. (Ref. 85523)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
極危 (CR) (C2a(ii)); Date assessed: 31 March 2010
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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) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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) |
3.3 ±0.4 se; based on size and trophs of closest relatives |
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (12 of 100). 🛈 |