Elasmobranchii (hajar och rockor) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Carcharhinidae (Requiem sharks)
Etymology: Scoliodon: scolio-, from skolios (Gr.), oblique; odon (Gr.), tooth, referring to oblique teeth pointing towards sides of mouth (See ETYFish); laticaudus: latus (L.), wide or broad; cauda (L.), tail, allusion not explained, perhaps referring to width of upper caudal-fin lobe (See ETYFish).
More on authors: Müller & Henle.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina; brackvatten bottenlevande; amfidrom (Ref. 51243); djupintervall 10 - 13 m. Tropical; 26°C - 29°C (Ref. 4959); 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).
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm 38.3, range 33 - 76.5 cm
Max length : 100.0 cm TL hane/ej könsbestämd; (Ref. 5450); rapporterad maxålder: 6 år (Ref. 244)
Taggstrålar i ryggfenan (totalt) : 0; Taggstrålar i analfenan: 0. Bronze grey above, white below, fins sometimes darker than body; no conspicuous markings (Ref. 9997).
Body shape (shape guide): fusiform / normal.
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). Adults feed 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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Mänskliga användningsområden
Fiskeri: kommersiell; bete: usually
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Uppskattningar baserade på modeller
Önskad temperatur (Ref.
123201): 25.3 - 29, mean 28.5 °C (based on 1946 cells).
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00337 - 0.00492), b=3.03 (2.98 - 3.08), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.8 ±0.4 se; based on diet studies.
Resiliens (Ref.
120179): Mycket låg, lägsta populationsfördubblingstid mer än 14 år (K=0.88; tm=2; tmax=6; Fec=1).
Sårbarhet i fisket (Ref.
59153): Moderate to high vulnerability (46 of 100).
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Näringsämnen (Ref.
124155): Calcium = 45 [6, 245] mg/100g; Iron = 0.903 [0.233, 2.570] mg/100g; Protein = 21.2 [18.9, 23.4] %; Omega3 = 0.174 [0.064, 0.437] g/100g; Selenium = 31.8 [6.9, 94.3] μg/100g; VitaminA = 8.81 [3.51, 21.02] μg/100g; Zinc = 0.932 [0.431, 1.731] mg/100g (wet weight);
