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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Cichlinae
Etymology: Congolapia: Congolapia is a contraction of the words Congo and Tilapia; all species of Congolapia are only known from the central Congo basin.; louna: The species name louna refers to the Louna River, type locality of this species; a noun in apposition (Ref. 92878).
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 外洋の. Tropical
Africa: only known from the Louna River (Lefini River affluent, middle Congo River basin) in Republic of Congo (Ref. 92878).
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 15.0 cm SL オス/雌雄の選別がない; (Ref. 92878)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 16; 背鰭 (合計) : 10 - 11; 肛門の骨: 3; 臀鰭: 8 - 9. Diagnosis: Congolapia louna differs from C. bilineata and C. crassa by having more gill rakers on first ceratobranchial, 13 vs. 8-10 in C. bilineata and 8-11 in C. crassa (Ref. 92878). It further differs from C. bilineata by having two complete scale rows between the upper lateral line and the base of the last dorsal spine and one additional row of very small scales in-between vs. one complete scale row and one additional scale row with smaller dorso-ventrally compressed scales between the upper lateral line and the base of the last dorsal spine; and a longer last dorsal spine, 12.9-15.0% of standard length vs. 9.4-13.2% (Ref. 92878). It further differs from C. crassa by lower body depth with only a minimal overlap, 37.4-42.1% of standard length vs. 40.4-48.4% (Ref. 92878). All scales cycloid; 26-27 scales on horizontal line; 18-21 upper lateral line scales; 9-10 lower lateral line scales (Ref. 92878).
Colour: Background colour light olive-green to greyish, chest and belly whitish; lower half of head whitish to light yellowish, and upper half of head brownish olive; upper and lower lip whitish; iris dark brown (Ref. 92878). Yellowish lachrymal stripe extending from lachrymal to jaw angle; black opercular spot (Ref. 92878). Pectoral fin at base light brownish, pelvic and anal fin greyish; dorsal fin greyish, no 'tilapia spot'; caudal fin greyish (Ref. 92878).
Collected in fast flowing water over a sandy bottom (Ref. 92878).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Dunz, A.R., E. Vreven and U.K. Schliewen, 2012. Congolapia, a new cichlid genus from the central Congo basin (Perciformes: Cichlidae). Ichthyol. Explor. Freshwat. 23(2):155-179. (Ref. 92878)
Human uses
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特記事項
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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 = 0.6250 [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).
栄養段階 (Ref.
69278): 3.2 ±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 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
