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Beloniformes (Needle fishes) >
Hemiramphidae (Halfbeaks)
Etymology: Rhynchorhamphus: Greek, rhingchos = snout + Greek,rhamphos = bill (Ref. 45335).
Eponymy: Georges Dussumier is described in the etymology as a friend of Valenciennes. [...] (Ref. 128868), visit book page.
More on author: Valenciennes.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina; sötvatten; brackvatten pelagic-neritic; djupintervall 0 - ? m. Tropical
Indo-West Pacific: the most widespread of the four species of Rhynchorhamphus, found from Persian Gulf through Arabian Sea and Bay of Bengal through the Western Central Pacific north to Taiwan and Hong Kong and east to New Guinea and northern Australia.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm 15.8, range 15 - 16.5 cm
Max length : 31.0 cm hane/ej könsbestämd; (Ref. 10943)
Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 13 - 17; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 13 - 16; Ryggkotor: 54 - 59. Very strongly pronounced domed upper jaw which is the longest and most arched of the four species of Rhynchorhamphus.
Body shape (shape guide): elongated.
Found in inshore waters (Ref. 75154). Enters freshwaters (Ref 13446).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: mindre kommeriell
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Uppskattningar baserade på modeller
Önskad temperatur (Ref.
123201): 24.9 - 29.2, mean 28.3 °C (based on 1440 cells).
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00251 (0.00133 - 0.00475), b=2.95 (2.78 - 3.12), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.1 ±0.2 se; based on size and trophs of closest relatives
Generation time: 0.8 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (K>1).
Sårbarhet i fisket (Ref.
59153): Low vulnerability (16 of 100).
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