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Carcharhinus obscurus (Lesueur, 1818)
Dusky shark
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| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Carcharhinus obscurus AquaMaps Data sources: GBIF OBIS |
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Carcharhinus obscurus
Picture by University of Western Australia (UWA)
Pictures | Videos | Stamps, coins, misc. | Imagem do Google
Picture by University of Western Australia (UWA)
Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii (tubarões e raias) (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
Etymology: Carcharhinus: karcharos (Gr.), sharp or jagged; rhinus, an ancient name for sharks, from rhine (Gr.), rasp, both words alluding to a shark's jagged, rasp-like skin (See ETYFish); obscurus: Latin for dark, probably referring to its darkish blue-gray body color (See ETYFish).
More on author: Lesueur.
Etymology: Carcharhinus: karcharos (Gr.), sharp or jagged; rhinus, an ancient name for sharks, from rhine (Gr.), rasp, both words alluding to a shark's jagged, rasp-like skin (See ETYFish); obscurus: Latin for dark, probably referring to its darkish blue-gray body color (See ETYFish).
More on author: Lesueur.
Environment: milieu / climate zone / depth range / distribution range Ecologia
marinhas; estuarina associadas(os) a recifes; oceanódromo (Ref. 51243); intervalo de profundidade 0 - 400 m (Ref. 244), usually 200 - 400 m. Subtropical; 45°N - 46°S, 120°W - 156°E (Ref. 55186)
Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri
Western Atlantic: southern Massachusetts to Florida (USA), Georges Bank, Bahamas, Cuba, northern Gulf of Mexico, Nicaragua, southern Brazil and Uruguay (Ref. 58839). Eastern Atlantic: Canary Islands, Cape Verde, Senegal, Sierra Leone. Some records from the Mediterranean and Madeira may be based on Carcharhinus galapagensis. Indo-West Pacific: Red Sea (Ref. 5485), Mozambique and South Africa to Japan, China, Viet Nam and Australia. Eastern Pacific: southern California, USA to Gulf of California and the Revillagigedo Island. Highly migratory species.
Comprimento de primeira maturação / Tamanho / Peso / Idade
Maturity: Lm 249.5, range 220 - 300 cm
Max length : 420 cm TL macho/indeterminado; (Ref. 5578); common length : 250 cm TL macho/indeterminado; (Ref. 26999); peso máx. publicado: 346.5 kg (Ref. 4699); idade máx. registrada: 40 anos (Ref. 31395)
Max length : 420 cm TL macho/indeterminado; (Ref. 5578); common length : 250 cm TL macho/indeterminado; (Ref. 26999); peso máx. publicado: 346.5 kg (Ref. 4699); idade máx. registrada: 40 anos (Ref. 31395)
Descrição suscinta Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 0; Espinhos anais: 0. A large shark with a broadly rounded snout, triangular saw-edged upper teeth, curved moderate-sized pectoral fins, and an interdorsal ridge (Ref. 5578). Blue-grey, lead-grey above, white below; tips of pectoral and pelvic fins, as well as lower lobe of caudal fin and dorsal fins often dusky in young, plain in adults (Ref. 9997).
Found in coastal and offshore waters but not oceanic (Ref. 5578). Adults are commonly found at depths of 200-400 m, young in shallower waters (Ref. 5485). A seasonal migratory species over parts of its range (Ref. 6871). Common component of the catch of the shark longline fishery (Ref.58048). Feeds on bottom and pelagic bony fish, sharks, skates, rays, cephalopods, gastropods, crustaceans, sometimes mammalian carrion and inorganic objects (Ref. 5578). Viviparous (Ref. 50449); with litter size number from 3-14 (Ref. 27549). Large adults are potentially dangerous (Ref. 4716, 6871). Utilized fresh, dried-salted, frozen and smoked for human consumption; hides for leather; fins for sharks-fin soup; and liver oil extracted for vitamins (Ref. 244).
Ciclo de vida ou comportamento de acasalamento Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Viviparous, with a yolk-sac placenta, litter size 3-14 pups (Ref. 244); 70-100 cm at birth (Ref. 6871). Gestation period of ~ 16 months (Ref.58048). Distinct pairing with embrace (Ref. 205).
Referência principal
Upload your references | Referências | Coordenador : Compagno, Leonard J.V. | Colaboradores
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 2024-2)
Em perigo (EN) (A2bd); Date assessed: 06 November 2018
Ameaça para os humanos
Traumatogenic (Ref. 4690)
Uso pelos humanos
Pescarias: espécies comerciais; peixe esportivo: sim
FAO - pescarias: desembarques, perfil da espécie; Publication: search | FishSource | Sea Around Us
Mais informação
Population dynamics
Parâmetros de crescimento
Max. ages / sizes
Length-weight rel.
Length-length rel.
Frequências de comprimento
Conversão de massa
Recrutamento
Abundância
Parâmetros de crescimento
Max. ages / sizes
Length-weight rel.
Length-length rel.
Frequências de comprimento
Conversão de massa
Recrutamento
Abundância
Life cycle
Reprodução
Maturidade
Maturity/Gills rel.
Fecundidade
Desova
Spawning aggregations
Ovos
Desenvolvimento dos ovos
Larvas
Dinâmica larval
Reprodução
Maturidade
Maturity/Gills rel.
Fecundidade
Desova
Spawning aggregations
Ovos
Desenvolvimento dos ovos
Larvas
Dinâmica larval
Physiology
Body composition
Nutrients
Consumo de oxigênio
Tipo de natação
Velocidade de natação
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Consumo de oxigênio
Tipo de natação
Velocidade de natação
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Human related
Aquaculture systems
Perfis para aquacultura
Estirpes
Ciguatera cases
Stamps, coins, misc.
Aquaculture systems
Perfis para aquacultura
Estirpes
Ciguatera cases
Stamps, coins, misc.
Ferramentas
Livro eletrônico | Guia de campo | Chaves de identificação | Ferramenta auxiliar de frequências de comprimento | Ferramenta sobre a história de vida | Mapa de pontos | Classification Tree
| Catch-MSY |
Relatórios especiais
Checar Manutenção em Aquário | Checar Planilhas de Fatos sobre as Espécies | Checar Planilhas de Fatos sobre Aquicultura
Baixar XML
Fontes da internet
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Checar Observador de Peixes (FishWatcher) | CISTI | Catalog of Fishes: Gênero, Espécies | DiscoverLife | ECOTOX | FAO - pescarias: desembarques, perfil da espécie; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genoma, nucleotídeo | GloBI | GoMexSI (interaction data) | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Bases de dados nacionais | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Árvore da vida | Wikipedia: Ir para, procura | World Records Freshwater Fishing | Registro zoológico
Estimates based on models
Preferred temperature (Ref. 123201): 8.7 - 18.6, mean 12.6 °C (based on 736 cells).
Índice de diversidade filogenética (Ref. 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00456 - 0.01384), b=3.07 (2.93 - 3.21), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Nível Trófico (Ref. 69278): 4.3 ±0.2 se; based on diet studies.
Resiliência (Ref. 120179): Muito baixo(a), tempo mínimo de duplicação da população maior que 14 anos (rm=0.02; also Musick et al. 2000 (Ref. 36717)).
Prior r = 0.09, 95% CL = 0.06 - 0.13, Based on 1 data-limited stock assessment.
Fishing Vulnerability (Ref. 59153): Very high vulnerability (88 of 100).
Climate Vulnerability (Ref. 125649): High vulnerability (62 of 100).
Nutrients (Ref. 124155): Calcium = 2.25 [0.42, 12.59] mg/100g; Iron = 0.295 [0.071, 0.898] mg/100g; Protein = 23 [20, 25] %; Omega3 = 0.163 [0.056, 0.425] g/100g; Selenium = 21.7 [6.3, 69.9] μg/100g; VitaminA = 24.1 [6.3, 93.0] μg/100g; Zinc = 0.398 [0.189, 0.797] mg/100g (wet weight);