Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά); Υφάλμυρο Υφαλόφιλο(α); μη μεταναστευτικό(ά); εύρος βάθους 0 - 6 m (Ref. 86942). Subtropical; 35°N - 36°S, 18°E - 159°W
Indo-West Pacific: Red Sea and East Africa to Samoa, north to the Ryukyu Islands, south to northern Australia and New Caledonia. Migrated to the eastern part of the Mediterranean Sea via the Suez Canal.
Length at first maturity / Μέγεθος / Βάρος / Age
Maturity: Lm 23.1, range 18 - ? cm
Max length : 45.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 30573); common length : 30.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 5450); μεγ. αναφερόμενη ηλικία: 4 έτη (Ref. 126539)
Ραχιαίες άκανθες (συνολικά) : 0; Μαλακές ραχιαίες ακτίνες (συνολικά) : 12 - 15; Εδρικές άκανθες: 0; Μαλακές εδρικές ακτίνες: 10 - 12. Greatly prolonged, beak-like lower jaw; upper jaw short, triangular and without scales; preorbital ridge absent; total number of gill rakers on first gill arch 25-36; pectoral fins short, not reaching past nasal pit when folded forward; with 3-9 (usually 4-6) vertical bars on the sides. (Ref. 9843). Color bluish dorsally, silvery on sides. 36-41 predorsal scales. Lower lobe of caudal fin longer than upper lobe. Dorsal and anal fins located posteriorly.
Occur in coastal waters of high islands and continental shorelines; generally in areas rich in vegetation (Ref. 5213) and sand flats (Ref. 48635). Form schools. Adults feed mainly on seagrasses, to a lesser extent on green algae and diatoms (Ref. 9843). Breed in estuaries (Ref. 4164). Marketed fresh and dried salted (Ref. 5284, 9843); meat tasty (Ref. 637). Also caught with dragnets (Ref. 30573) and dipnets.
Collette, B.B. and J. Su, 1986. The halfbeaks (Pisces, Beloniformes, Hemiramphidae) of the Far East. Proc. Acad. Nat. Sci. Philadelphia 138(1):250-301. (Ref. 10943)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
αλιεία: Εμπορικό(ά); αλιεία αναψυχής: ναί; δόλωμα: occasionally
Εργαλεία
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Διαδικτυακές πηγές
Estimates based on models
Preferred temperature (Ref.
123201): 24.7 - 29.3, mean 28.5 °C (based on 3383 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00291 - 0.00496), b=3.07 (3.01 - 3.13), in cm total length, based on LWR estimates for this species (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 2.7 ±0.30 se; based on food items.
Ελαστικότητα (Ref.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (35 of 100).
Nutrients (Ref.
124155): Calcium = 61.2 [21.4, 168.3] mg/100g; Iron = 0.643 [0.265, 1.468] mg/100g; Protein = 18.8 [16.1, 21.2] %; Omega3 = 0.165 [0.067, 0.461] g/100g; Selenium = 12.5 [4.9, 32.5] μg/100g; VitaminA = 39.7 [9.5, 186.7] μg/100g; Zinc = 1.06 [0.61, 1.80] mg/100g (wet weight); based on
nutrient studies.
