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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); katonga: Named after the type locality, the katonga River; katonga is used as a noun in apposition (Ref. 85068).
Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Tropical
Africa: Katonga River in Uganda (Ref. 85068).
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 6.9 cm SL ذكر/ مختلط الجنس; (Ref. 85068)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشواك الظهرية (المجموع) : 15 - 16; الأشعة الظهرية الناعمة (المجموع) : 8 - 10; شوكة شرجية: 3; أشعه شرجية لينه: 8 - 10. Diagnosis: A relatively small species with a moderate body depth, laterally compressed, with generalised body shape, a terminal, slightly acute, symmetric mouth, lower jaw protruding, and relatively large eyes, 33.8% of head length vs. 23.7% in Haplochromis nubilus, 29.4% in H. akika, 30.5% in H. commutabilis (Ref. 85068). It shares with other East African fluviatile species, especially the so-called Astatotilapia, the smaller longitudinal scale count, less than 31, compared to lacustrine species, more than 30, with exceptions H. akika, H. ampullarostratus, H. nubilus, from which, except for H. ampullarostratus, it is distinguished by its lesser body depth, less yhan 35% of standard length vs. more than 35% (Ref. 85068). From H. ampullarostratus it differs in, for instance, greater head length, 34.7-37.5% of standard length vs. 32.5-33.5%, and shorter snout length, 21.5-28.7% of head length vs. 29.1-31.4% (Ref. 85068). Additionally it differs from H. nubilus in head shape, dorsal head profile straight vs. concave, and nuptial colouration, solid black in H. nubilus vs. colourful, and colour of anal fin which is plain red in nuptial-coloured males of H. katonga vs. only marginally reddish or different-coloured in all other fluviatile species (Ref. 85068). The overall nuptial colouration of males is also a diagnostic feature: live colouration of males bluish to dark grey-brown on dorsum, flanks greenish, ventral parts yellowish, with reddish areas in unpaired fins; of females greyish blue to greyish yellow with a faint metallic blue hue dorsally (Ref. 85068).
Found in Katonga River, which is choked with vegetation and hardly recognizable as a river, with no directly visible current (Ref. 85068).
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Schraml, E. and H. Tichy, 2010. A new species of Haplochromis, Haplochromis katonga n. sp. (Perciformes: Cichlidae) from the Katonga River, Uganda. aqua, Int. J. Ichthyol. 16(3):81-92. (Ref. 85068)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
