分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
(Bony tongues) > Notopteridae
(Featherbacks or knifefishes) > Notopterinae
Etymology: Chitala: Bangladesh local name; chitala: From rivers of Bengal & Behar..
More on author: Hamilton.
Environment: milieu / climate zone / depth range / distribution range
; 新鮮な水 底生の; pH range: 6.0 - 8.0; dH range: 5 - 19. Tropical; 24°C - 28°C (Ref. 2060)
Asia: Indus, Ganges-Brahmaputra and Mahanadi river basins in India. No valid records from Irrawaddy, Salween or other river basins of Myanmar. Reports of Chitala chitala from Thailand and Indo-China were based on Chitala ornata and those from Malaysia and Indonesia on Chitala lopis.
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 75.5  range ? - 91 cm
Max length : 122 cm SL オス/雌雄の選別がない; (Ref. 4832); common length : 75.0 cm SL オス/雌雄の選別がない; (Ref. 2686)
形態学 | 形態計測学
背面の脊椎 (合計): 0; 背鰭 (合計): 9; 肛門の骨 0; 臀鰭: 117 - 127. The only species in which subadults and adults have a series of transverse gold or silver bars on the dorsum, but this color feature is not always present (Ref. 7431). Differs from C. ornata in never having ocellated spots and from C. blanci and C. lopis in never having a black spot on the pectoral fin base (Ref. 7431).
Adults inhabit freshwater rivers, lakes, beels, nullahs in the plains (Ref. 41236), reservoirs, canals and ponds (Ref. 1479). Feed on aquatic insects, mollusks, shrimps and small fishes (Ref. 1479). Females lay eggs usually on stake or stump of wood, males fan them with tail, keep them aerated and silt-free, guard them against small catfish and other predators; complete give-away to fishermen; females not observed at egg posts; moderately important food fish (Ref. 2686). Spawn once a year during May to August (Ref. 6459).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
The male tends the clutch (Ref. 2060).
Roberts, T.R., 1992. Systematic revision of the old world freshwater fish family Notopteridae. Ichthyol. Explor. Freshwat. 2(4):361-383. (Ref. 7431)
水産業: 少数商業の; 水産養殖: 商業; ゲームフィッシュ: はい; 水族館・水槽: 商業
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5166 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this BS (Ref. 93245
栄養段階 (Ref. 69278
): 3.7 ±0.59 se; based on food items.
Generation time: 3.7 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
回復力 (Ref. 120179
): 手段, １．４年～４．４年の倍増期間の最小個体群 (tm=2).
Fishing Vulnerability (Ref. 59153
): Moderate to high vulnerability (48 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .
Nutrients (Ref. 124155
): Calcium = 85.7 [31.9, 252.9] mg/100g ; Iron = 1.42 [0.58, 3.22] mg/100g ; Protein = 17.3 [15.8, 19.1] % ; Omega3 = 0.275 [0.122, 0.660] g/100g ; Selenium = 78.8 [31.3, 226.4] μg/100g ; VitaminA = 16.7 [3.8, 63.9] μg/100g ; Zinc = 0.716 [0.383, 1.756] mg/100g (wet weight); based on nutrient studies.