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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Hemichromis: Greek, hemis = half + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on author: Guichenot.
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
; air tawar bentopelagis; pH range: ? - 7.0; dH range: ? - 15; nir-ruaya (Ref. 126106). Tropical; 23°C - 25°C (Ref. 2060)
Africa: widely distributed in the coastal rivers of Lower Guinea, from the Ntem in Cameroon to Kouilou basin in Republic of Congo, including the Woleu, Ogowe and Nyanga rivers (Ref. 81260, 123791). Also in the Dja River, an affluent of the Middle Congo basin (Ref. 123791). Populations from entire Congo River basin and southern African basins, including Okavango, Zambesi and Cuanza (Ref. 11970, 120641), are also considered as conspecific (Ref. 123791), and may represent a distinct species (Ref. 81260). Also reported from West Africa in Guinea, Sierra Leone, Liberia, Togo, Benin and Nigeria (Ref. 43352, 81260), but this needs confirmation (Ref. 53405).
Panjang pada saat jatuh tempo pertama / Ukuran / Berat / umur
Kematangan: Lm 10.7, range 10 - 11.5 cm
Max length : 18.7 cm SL jantan/; (Ref. 81260)
Duri punggung (Keseluruhan (total)) : 13 - 16; duri punggung lunak (Keseluruhan (total)) : 11 - 13; Duri dubur: 3; Sirip dubur lunak: 7 - 10. Diagnosis: Hemichromis elongatus can be distinguished from H. camerounensis by the presence of a single red opercular spot or a mixture of reddish and yellowish spots dorsally of the large black opercular spot instead of two red opercular spots on the both sides of the black spot in H. camerounensis (Ref. 123791). It can be distinguished from H. fasciatus by the absence of small black dots between the first three dark stripes on the sides of the body of adults (Ref. 123791). With 4-5 distinct blotches or ovoid bars along lateral mid-line (Ref. 44091, 81260), but bands not obvious in large males which assume a very dark to almost black coloration (Ref. 44091). Scales olive to yellow; series of thin red dots often forming horizontal lines along the mid-portion of flanks; normally 2 rows of teeth on upper jaw (Ref. 81260). Magenta spot on gill cover (Ref. 44091).
Body shape (shape guide): fusiform / normal.
Adults are found in shallow lakes and streams (Ref. 58302). Highly predaceous and thus used in some areas for tilapia control; feeds on fish, shrimp and aquatic insects; very aggressive and territorial (Ref. 44091); Parents guard the nest and larvae (Ref. 7248). Pair-bonding, substrate brooder (Ref. 81260). Oviparous (Ref. 205).
Daget, J. and G.G. Teugels, 1991. Hemichromis. p. 187-194. 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. 5644)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01778 (0.00958 - 0.03300), b=3.02 (2.87 - 3.17), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Tingkat Trofik (Acuan
69278): 3.7 ±0.58 se; based on food items.
Daya lenting (Acuan
120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (tm<1; Fec=500).
Kerentanan Penangkapan Ikan (Ref.
59153): Low vulnerability (13 of 100).
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Nutrisi (Ref.
124155): Calcium = 145 [78, 271] mg/100g; Iron = 1.41 [0.78, 2.70] mg/100g; Protein = 18.5 [17.1, 20.0] %; Omega3 = 0.539 [0.201, 1.522] g/100g; Selenium = 61.7 [25.0, 155.9] μg/100g; VitaminA = 68.4 [16.0, 211.8] μg/100g; Zinc = 2.03 [1.36, 3.09] mg/100g (wet weight);
