Ambiente / Clima / Range
Ecologia
; marino; salmastro demersale; amfidromo (Ref. 51243); distribuzione batimetrica 10 - 13 m. Tropical; 26°C - 29°C (Ref. 4959), preferred ?; 34°N - 26°S, 32°E - 130°E
Indo-West Pacific: Persian Gulf (Ref. 68964), Somalia (Ref. 30573), Tanzania, Mozambique (Ref. 5213), Pakistan to Java in Indonesia; then Japan, China, and Taiwan. Reported from Australia (Ref. 4959).
Length at first maturity / Size / Peso / Age
Maturity: Lm ?, range 33 - 35 cm
Max length : 100.0 cm TL maschio/sesso non determinato; (Ref. 5450); Età massima riportata: 6 anni (Ref. 244)
Spine dorsali (totale): 0; Raggi dorsali molli (totale): 0; Spine anali 0; Raggi anali molli: 0. Bronze grey above, white below, fins sometimes darker than body; no conspicuous markings (Ref. 9997).
Found on rocky substrates of coastal waters and lower reaches of tropical rivers (Ref. 244). It is uncertain, however, if this species can live in perfectly fresh water for extended periods (Ref. 244). Forms large schools (Ref. 244). Feeds on small bony fishes, shrimps and cuttlefish (Ref. 244). Viviparous (Ref. 50449). Common by-catch of the inshore demersal gillnet fisheries, particularly those operating off Kalimantan (Ref.58048). Utilized fresh for human consumption; processed into fishmeal and used as bait for other sharks and bony fishes (Ref. 244). Maximum sizes up to 120 cm unconfirmed (Ref. 244).
Viviparous, with an unusual columnar placenta (Ref. 244). Maternal and foetal placenta comprises the entire placenta (Ref. 39556). Transplacental nutrient transfer may be hemotrophic (Ref. 39556). Litter size varies from 1 (Ref.58048) to 14 (Ref. 9997). Size at birth about 13 to 15 cm TL (Ref. 9997). Distinct pairing with embrace (Ref. 205).
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Human uses
Pesca: commerciale; esca: usually
Informazioni ulteriori
BibliografiaAcquacolturaProfilo di acquacolturaVarietàGeneticaFrequenze allelicheEreditarietàMalattieElaborazioneMass conversion
CollaboratoriImmaginiStamps, CoinsSuoniCiguateraVelocitàModalità di nuotoArea branchialeOtolithsCervelliVista
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00211 - 0.00787), b=3.07 (2.91 - 3.23), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic Level (Ref.
69278): 3.8 ±0.4 se; Based on diet studies.
Resilienza (Ref.
69278): Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (K=0.88; tm=2; tmax=6; Fec=1).
Vulnerability (Ref.
59153): Moderate to high vulnerability (48 of 100) .