Carcharhinus falciformis, Silky shark : fisheries

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Carcharhinus falciformis (Bibron, 1839)

Silky shark
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Native range | All suitable habitat | Point map | Year 2050
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Carcharhinus falciformis   AquaMaps   Data sources: GBIF OBIS
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Image of Carcharhinus falciformis (Silky shark)
Carcharhinus falciformis
Fotografia de Furlan, B.

Ecuador country information

Common names: Cazón
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 244.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ec.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Béarez, P., 1996
National Database:

Common names from other countries

Requin soyeux, Tiburón jaquetón, Grey whaler shark, ... more

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, 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); falciformis: falx (L.), scythe or sickle; forma (L.), shape or form, referring to sickle-like shape of pectoral fins [authorship often attributed to Müller & Henle, who published Bibron’s description] (See ETYFish).

Environment: milieu / climate zone / intervalo de profundidade / distribution range Ecologia

marinhas associadas(os) a recifes; oceanódromo (Ref. 51243); intervalo de profundidade 0 - 4000 m (Ref. 55180), usually 0 - 500 m (Ref. 6871). Subtropical; 42°N - 43°S, 180°W - 180°E (Ref. 55180)

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Mapa dos pontos | Introduções | Faunafri

Circumtropical. Western Atlantic: Massachusetts, USA to southern Brazil, including the Gulf of Mexico and the Caribbean Sea to Uruguay (Ref. 244, 58839). Eastern Atlantic: Spain, Madeira to northern Angola; St. Paul's Rocks (Ref. 13121); Cape Verde (Ref. 34514). Indo-Pacific: scattered records from the Red Sea and Natal, South Africa (Ref. 5578) to China, New Zealand, and the Caroline, Hawaiian, Phoenix and Line islands. Eastern Pacific: southern Baja California, Mexico to northern Chile. Highly migratory species.

Length at first maturity / Tamanho / Peso / Idade

Maturidade: Lm 219.1, range 180 - 260 cm
Max length : 350 cm TL macho/indeterminado; (Ref. 9997); common length : 250 cm TL macho/indeterminado; (Ref. 9997); peso máx. Publicado: 346.0 kg (Ref. 40637); Idade máx. registada: 25 anos (Ref. 31395)

Descrição breve Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 0; Espinhos anais: 0. A large, slim shark with a moderately long, flat and rounded snout, large eyes, small jaws, and oblique-cusped teeth with serrations; 2nd dorsal fin low and with greatly elongated rear tip (Ref. 5578). Grey or bluish-grey above, white below; no conspicuous fin markings (Ref. 5578). Only Carcharhinus species with an interdorsal ridge that has the dorsal fin origin behind the free rear tip of the pectoral fin (Ref. 26938).
Body shape (shape guide): fusiform / normal.

Biologia     Glossário (ex. epibenthic)

Found abundantly near the edge of continental and insular shelves, but also in the open sea and occasionally inshore (Ref. 244). Often found in deepwater reefs and near insular slopes (Ref. 244). Littoral and epipelagic, in the open sea or near the bottom at 18-500 m (Ref. 58302). It is quick-moving and aggressive (Ref. 244). Solitary (Ref. 26340); often associated with schools of tuna (Ref. 244). Feeds mainly on fishes, but also squid, paper nautiluses, and pelagic crabs (Ref. 244; 37816). Viviparous (Ref. 50449). Regarded as dangerous to humans (Ref. 9997). Flesh utilized fresh and dried-salted for human consumption; its hide for leather; its fin for shark-fin soup; its liver for oil (Ref. 244). 2 to 14 young, 73 to 87 cm, are born per litter (Ref. 1602).

Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

Viviparous, placental (Ref. 50449). 2-15 pups (Ref. 6871, 37816) born at 57-87 cm TL (Ref. 9997); 1-16 pups born at 55-72 cm TL. Females appear to breed every year, but there appears to be no reproductive seasonality (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)

Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-1)

  Vulnerable (VU) (A2bd); Date assessed: 26 September 2017

CITES

Appendix II: International trade monitored

CMS (Ref. 116361)

Appendix II: Migratory species conserved through agreements

Ameaça para o homem

  Traumatogenic (Ref. 9997)





Utilização humana

Pescarias: altamente comercial
FAO - pescarias: landings, perfil da espécie; Publication: search | FishSource | Sea Around Us

Mais informação

Ecologia Trófica
Food items (preys)
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Ferramentas

Bio-Quiz | E-book | Guia de campo | Chaves de identificação | Ferramenta auxiliar de frequências de comprimento | Ferramenta sobre a história de vida | Mapa dos pontos | Catch-MSY |

Relatórios especiais

Consultar manutenção em aquários | Consultar ficha de espécies | Consultar fichas de aquacultura

Descarregue XML

Página de resumo | Dado pontual | Nomes comuns | Fotografias

Fontes da internet

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | Websites from users | Consultar FishWatcher | CISTI | Catalog of Fishes: Género, Espécies | DiscoverLife | ECOTOX | FAO - pescarias: landings, perfil da espécie; Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | GoMexSI (interaction data) | Google Books | Google Scholar | Google | IGFA World Record | Bases de dados nacionais | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Árvore da vida | Wikipedia: ir para, procurar | World Records Freshwater Fishing | Registo zoológico

Estimates based on models

Preferred temperature (Ref. 123201): 12 - 28.9, mean 26.7 °C (based on 8170 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00408 - 0.00616), b=3.07 (3.03 - 3.11), in cm total length, based on LWR estimates for this species (Ref. 93245).
Nível Trófico (Ref. 69278):  4.5   ±0.0 se; based on diet studies.
Generation time: 9.2 (7.4 - 13.1) years. Estimated as median ln(3)/K based on 14 growth studies.
Resiliência (Ref. 120179):  Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (rm=0.054; K=0.05-0.15; tm=6-10; tmax=25; Fec=2-14).
Prior r = 0.06, 95% CL = 0.04 - 0.09, Based on 3 data-limited stock assessments.
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (82 of 100). 🛈
Climate Vulnerability (Ref. 125649):  Very high vulnerability (76 of 100). 🛈
Categoria de preço (Ref. 80766):   High.
Nutrients (Ref. 124155):  Calcium = 2.41 [0.46, 12.84] mg/100g; Iron = 0.321 [0.080, 0.980] mg/100g; Protein = 22.8 [19.9, 25.0] %; Omega3 = 0.211 [0.078, 0.542] g/100g; Selenium = 34.5 [10.6, 105.0] μg/100g; VitaminA = 23 [7, 76] μg/100g; Zinc = 0.281 [0.138, 0.566] mg/100g (wet weight);