Mozambique country information

Common names: Marracho sedoso
Occurrence: native
Salinity: marine
Abundance: common (usually seen) | Ref: Compagno, L.J.V., D.A. Ebert and M.J. Smale, 1989
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs off Mozambique. Taken by offshore longline fisheries. Also Ref. 244.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mz.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., D.A. Ebert and M.J. Smale, 1989
National Database:

Common names from other countries

Requin soyeux, Tiburón jaquetón, Olive shark, ... more

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); 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 / depth range / 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 da FAO | Ecossistemas | Ocorrências | Point map | 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.

Comprimento de primeira maturação / Tamanho / Peso / Idade

Maturity: L_m 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. registrada: 25 anos (Ref. 31395)

Descrição suscinta 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).

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).

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | 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)

Status na Lista Vermelha da UICN (Ref. 130435)

Vulnerável, ver Livro Vermelho da UICN (VU) (A2bd); Date assessed: 26 September 2017

CITES (Ref. 128078)

Appendix II: International trade monitored

CMS (Ref. 116361)

Appendix II: Migratory species conserved through agreements

Ameaça para os humanos

Traumatogenic (Ref. 9997)

Uso pelos humanos

Pescarias: altamente comercial

FAO(pescarias: produção, perfil da espécie; publication : search) | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 115969): 12 - 28.9, mean 26.7 (based on 8170 cells).

Índice de diversidade filogenética (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00468 (0.00378 - 0.00579), b=3.08 (3.04 - 3.12), 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.

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.

Carcharhinus falciformis (Bibron, 1839)