Elasmobranchii (tubarões e raias) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Triakidae (Houndsharks) > Triakinae
Etymology: Triakis: tri-, from tres (L.), three; akis (Gr.), point, referring to each tooth consisting of one large central cusp flanked on by both sides by a small cusplet (See ETYFish); scyllium: From skylion, Greek for dogfish or small shark (See ETYFish).
More on authors: Müller & Henle.
Environment: milieu / Zona climática / intervalo de profundidade / distribution range
Ecologia
marinhas; estuarina demersal. Subtropical; 48°N - 20°N
Northwest Pacific: southern Siberia to Taiwan (Ref. 244). Nominal records from the Philippines (Ref. 13563).
Comprimento de primeira maturação / Tamanho / Peso / Idade
Maturidade: Lm 103.5, range 99 - 108 cm
Max length : 150 cm TL macho/indeterminado; (Ref. 244)
Found on the continental and insular shelves, often occurring in shallow water close inshore. Prefers estuaries and shallow bays, especially sandy and algal-covered areas and eelgrass flats. Feeds on small fishes and probably crustaceans and other benthic invertebrates. Often solitary, though some may cluster in resting areas on bottom. Ovoviviparous (aplacental), with 10 to 20 young in a litter. Meat is regarded as of inferior quality.
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Ovoviviparous, embryos feed solely on yolk (Ref. 50449).
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 na Lista Vermelha da UICN (Ref. 130435: Version 2025-1)
Uso pelos humanos
Pescarias: pouco comercial; peixe esportivo: sim
Ferramentas
Relatórios especiais
Baixar XML
Fontes da internet
Estimates based on models
Preferred temperature (Ref.
123201): 14.8 - 21.8, mean 18.8 °C (based on 52 cells).
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00245 (0.00114 - 0.00526), b=3.13 (2.95 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.8 ±0.2 se; based on diet studies.
Generation time: 6.7 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Resiliência (Ref.
120179): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Fec=10; K=0.16; tmax=20.6).
Fishing Vulnerability (Ref.
59153): High vulnerability (64 of 100).
🛈
