分類 / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Pelvicachromis: Latin, pelvica, -ae = bassin + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の; pH range: 6.0 - 8.0; dH range: 5 - 12. Tropical; 22°C - 25°C (Ref. 1672); 10°N - 0°N
Africa: from east Benin to Nigeria, restricted to freshwater parts of regions near the coast (Ref. 97630), including the Niger delta (Ref. 53405). Reports from Cameroon and Bioko (Ref. 81260) belong to Pelvicachromis kribensis (Ref. 97630).
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 7.1 cm SL オス/雌雄の選別がない; (Ref. 81260)
背面の脊椎 (合計): 17 - 18; 背鰭 (合計): 7-9; 肛門の骨 3; 臀鰭: 7 - 8. Diagnosis: A moderately gracile species, with rounded head and well-developed sexual dimorphism and dichromatism (Ref. 97630). It differs from all congeners by a coloration in male caudal fin with a white to yellow upper half of this fin, having a number of black dots in the dorsal half, without any margin, and a black margin with a white to pale bluish submargin in the lower half of this fin, vs. no margin/submargin in lower half of this fin in all congeners with exception of Pelvicachromis drachenfelsi and a white margin and black submargin in upper half of caudal fin in P. drachenfelsi (Ref. 97630). Females differ from females of P. drachenfelsi and P. kribensis in having two or three horizontal dark bars in the caudal fin, vs. none in P. drachenfelsi and one in some populations of P. kribensis (Ref. 97630). It differs from P. drachenfelsi in a caudal peduncle shorter then deep, vs. usually longer then deep; it differs from P. humilis, P. rubrolabiatus and P. signatus in absence of seven-eight dark, vertical bars on bodyand in three tubular infraorbital bones vs. two; it differs from P. silviae in lesser body depth, 29.9-36.4% of standard length vs. 37.4-43.0%, shorter preanal distance, 62.8-66.7% of standard length vs. 66.2-69.8%, shorter prepelvic distance, 36.0-37.5% of standard length vs. 36.9-39.8%, and more spines in dorsal fin, 17-18 vs. 14-16; it differs from P. subocellatus in lesser body depth in males in lappet-like elongation of some rays of caudal fin vs. no such elongation; it differs from P. roloffi in greater caudal peduncle length, 12.4-14.1% of standard length vs. 9.4-12.2%, and more pored scales of lateral-line, 26-28 vs. 24-26; it differs from P. sacrimontis in shorter interorbital distance, 21.4-26.8% of head length vs. 29.4-45.3%; it differs from P. pulcher in shorter preorbital distance, 18.6-21.2% of head length vs. 21.0-33.8%, and in rows of dots in the central field and lower part of the male caudal fin, vs. absence (Ref. 97630).
Cave-spawning, substrate brooder (Ref. 81260). Aquarium keeping: in pairs; minimum aquarium size 80 cm (Ref. 51539).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Spawns in caves. Eggs may be deposited in niches and crevices as well as below roots, pieces of bark and larger leaves (Ref. 89992).
Daget, J., 1991. Pelvicachromis. p. 363-366. 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. 5677)
Human uses
水族館・水槽: 商業
より多くの情報
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
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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 = 0.5039 [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
回復力 (Ref.
120179): 高い, １５か月以下の倍増期間の最小個体群 (tm<1).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
