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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Etroplinae
Etymology: Etroplus: Name from the words 'etron' meaning belly and 'oplon' for arms; referring to the spines on the lower side; that is, the long spinour anal-fin..
More on author: Bloch.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Thuộc về nước lợ Sống nổi và đáy; Mức độ sâu 10 - ? m. Tropical; 23°C - 26°C (Ref. 2060); 11°N - 6°S
Western Indian Ocean: India and Sri Lanka.
Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm 15.0 range ? - ? cm
Max length : 40.0 cm TL con đực/không giới tính; (Ref. 41236); common length : 20.0 cm TL con đực/không giới tính; (Ref. 6028)
Primarily found in brackish water but known to tolerate fresh or marine waters for short periods (Ref. 48490). Found in large rivers, reservoirs, lagoons and estuaries. Feed on filamentous algae, plant material and insects.
After spawning, about 500 eggs are laid and attached to a submerged log, rock or sometimes roots and weeds, in still or slow flowing water. Parents guard and fan the eggs until hatching, usually about 4 days. The fry shoal around their parents during the first weeks of growth. Parents refrain from feeding from the time of spawning until the fry become independent.
Pethiyagoda, R., 1991. Freshwater fishes of Sri Lanka. The Wildlife Heritage Trust of Sri Lanka, Colombo. 362 p. (Ref. 6028)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Các nghề cá: Tính thương mại; Nuôi trồng thủy sản: Tính thương mại; Bể nuôi cá: Tính thương mại
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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=0.01698 (0.01161 - 0.02484), b=2.96 (2.86 - 3.06), in cm total length, based on LWR estimates for this species (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 2.9 ±0.26 se; based on food items.
Thích nghi nhanh (Ref.
120179): Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (tm=2).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).
Nutrients (Ref.
124155): Calcium = 82.7 [5.9, 469.4] mg/100g; Iron = 1.21 [0.12, 15.99] mg/100g; Protein = 19 [16, 21] %; Omega3 = 0.286 [0.118, 0.663] g/100g; Selenium = 65.8 [5.5, 508.4] μg/100g; VitaminA = 8.04 [0.90, 68.44] μg/100g; Zinc = 1.55 [0.17, 16.82] mg/100g (wet weight); based on
nutrient studies.
