Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
Θαλασσινό(ά); Γλυκού νερού; Υφάλμυρο βενθικό(ς); αμφίδρομο (Ref. 51243); εύρος βάθους 0 - 5 m (Ref. 86942). Tropical; 25°C - ? (Ref. 2059); 45°N - 27°S
Indo-West Pacific: throughout the Indo-Pacific, from east African coasts to Philippines, Melanesia and Polynesia (Ref. 6802); east African coast south to Transkei (Ref. 52193).
Μέγεθος / Βάρος / Age
Γεννητική Ωρίμανση: Lm ? range ? - ? cm
Max length : 26.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 5493)
Ραχιαίες άκανθες (συνολικά) : 7; Μαλακές ραχιαίες ακτίνες (συνολικά) : 8; Εδρικές άκανθες: 1; Μαλακές εδρικές ακτίνες: 8. Diagnosis: Longitudinal line scales 57-68; preopercular spine present; 8-10 gillrakers on lower part of first branchial arch (Ref. 5493, 79840). Dark brown to black in color; horizontal lines on body; young with spotted fins (Ref. 5493).
Body shape (shape guide): elongated.
Adults inhabit lagoons, estuaries and freshwater (Ref. 6028, 48637, 79840). They occur in the lower reaches of freshwater streams, usually on mud bottoms (Ref. 44894). Juveniles are found mainly among mangrove roots in the more saline areas of lagoons and estuaries (Ref. 6028, 79840). Carnivorous (Ref. 79840). Marketed fresh (Ref. 12693).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Spawns eggs on submerged plants with small leaves. Female tends and fans the eggs until hatching and loosely guards the fry for a few days thereafter.
Maugé, L.A., 1986. Eleotridae. p. 389-398. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MARC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 6802)
Threat to humans
Harmless
Human uses
αλιεία: περιορισμένης εμπορικότητας; Ενυδρείο: Εμπορικό(ά)
Εργαλεία
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Διαδικτυακές πηγές
Estimates based on models
Preferred temperature (Αναφ.
123201): 25.4 - 29.3, mean 28.5 °C (based on 3082 cells).
Phylogenetic diversity index (Αναφ.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00345 - 0.02005), b=3.10 (2.91 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Τροφικό Επίπεδο (Αναφ.
69278): 3.8 ±0.3 se; based on diet studies.
Ελαστικότητα (Αναφ.
120179): Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (16 of 100).
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Nutrients (Ref.
124155): Calcium = 444 [120, 988] mg/100g; Iron = 0.785 [0.362, 1.591] mg/100g; Protein = 17.5 [15.4, 19.9] %; Omega3 = 0.137 [0.071, 0.258] g/100g; Selenium = 59.5 [24.6, 138.4] μg/100g; VitaminA = 29.2 [7.4, 110.8] μg/100g; Zinc = 1.86 [1.16, 2.89] mg/100g (wet weight); based on
nutrient studies.
