分類 / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Haplochromis: Greek, Haploos = single + Greek, chromis = a fish, perhaps a perch (Ref. 45335); sphex: From the Greek 'σϕήξ', wasp, referring to the colouration of males; like the wasp, males of this species are typically yellow with black stripes (Ref. 85523).
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性; 深さの範囲 ? - 10 m (Ref. 85523). Tropical
Africa: Lake Victoria (Ref. 85523).
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 8.2 cm SL オス/雌雄の選別がない; (Ref. 85523)
簡単な記述
形態学 | 形態計測学
脊つい: 29 - 31. Diagnosis: Haplochromis sphex is a small sized (less than 9 cm standard length), slender (body depth less than 32% of standard length) micrognathic species, with mainly bicuspid teeth in the oral jaws; dorsal head profile straight to moderately curved (Ref. 85523). The colouration of the sexually active males is yellow with blackish longitudinal, interrupted bands and vertical bars, producing a so-called 'chess board pattern'; this pattern also occurs in several oral shelling molluscivores, insectivores and algae scrapers, but these species generally are larger, have a deeper body, have a strongly curved dorsal head profile and a lower jaw length/width ratio of less than 1.5, whereas in Haplochromis sphex it ranges from 1.5 to 2.7 (Ref. 85523). It differs from other small species with a 'chess board pattern', H. bwathondii and H. sauvagei, by its shallower body; sexually active males of H. sauvagei generally have a more distinct 'chess board pattern' than H. sphex; in contrast to H. sphex, sexually active males of both H. bwathondii and H. sauvagei develop a red chest and belly; the colouration of females and quiescent males of H. sauvagei is rather similar to that of sexually active males of H. sphex (Ref. 85523).
Found in waters up to a depth of 10 m both over sand and mud (Ref. 85523). It fed mainly on phytoplankton (Cyanophyta and Aulacoseira) and occasionally on copepods (Ref. 85523). This species is a female mouth brooder (Ref. 85523).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
This species is a female mouth brooder (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)
Human uses
水産業:
より多くの情報
共通名の類義語代謝捕食動物生態毒性繁殖成熟放精卵の集合体生産力卵卵の開発
Age/Size成長体長-重さLength-length体長組成形態計測学形態学幼生幼生の動力補充豊度BRUVS
参考文献水産養殖水産養殖の紹介緊張遺伝子のElectrophoreses遺伝病気行列NutrientsMass conversion
協力者画像Stamps, Coins Misc.音シガテラ（食中毒の名前）速度泳ぐ 型式カマOtoliths脳視覚
用具
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00700 - 0.03275), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
