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Scymnodon macracanthus (Regan, 1906)

Largespine velvet dogfish
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Image of Scymnodon macracanthus (Largespine velvet dogfish)
Scymnodon macracanthus
Female picture by Duffy, C.

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (tubarões e raias) (sharks and rays) > Squaliformes (Sleeper and dogfish sharks) > Somniosidae (Sleeper sharks)
Etymology: Scymnodon: scymnus, an ancient name for some kind of shark, derived from a Greek word meaning young animal, cub or whelp; odon (Gr.), tooth, referring to large, triangular cutting teeth on lower jaw of S. ringens. (See ETYFish);  macracanthus: macro-, from makros (Gr.), long or large; acanthus (L.), from akantha (Gr.), thorn, referring to stout, prominent dorsal-fin spines. (See ETYFish).
More on author: Regan.

Environment: milieu / climate zone / depth range / distribution range Ecologia

marinhas batidemersal; intervalo de profundidade 219 - 1550 m (Ref. 6871), usually 550 - 732 m (Ref. 247). Deep-water; 50°S - 54°S

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Indo-Pacific: southern distribution, discontinuous across Pacific and Indian Oceans.

Length at first maturity / Tamanho / Peso / Idade

Maturity: Lm 149.5, range 129 - 170 cm
Max length : 131 cm TL macho/indeterminado; (Ref. 247); 170.0 cm TL (female)

Descrição breve Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 2; Espinhos anais: 0. Dark brown or blackish in color, dorsal fins with fairly prominent fin spines, moderately long snout, lanceolate upper teeth and bladelike lower teeth with short, oblique cusps, stocky body that tapers abruptly from pectoral region, and moderately large tricuspidate and tricarinate lateral trunk denticles (Ref. 247).

Biologia     Glossário (ex. epibenthic)

A rare species inhabiting lower continental slopes (Ref. 26346), also on insular slopes in large schools near the bottom which are segregated according to size and sex, and feeds on cephalopods and bony fishes (Ref. 247). Up to 36 young in a litter, ths size at birth between 32 and 36 cm (Ref. 247). Used for fishmeal and liver oil (Ref. 6871). Minimum depth from Ref. 247. Ovoviviparous (Ref. 205).

Life cycle and mating behavior Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Ovoviviparous (Ref. 26346). Distinct pairing with embrace (Ref. 205).

Referência principal Upload your references | Referências | Coordenador | 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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

  Dados insuficientes (DD) ; Date assessed: 04 July 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Harmless





Utilização humana

Pescarias: sem interesse
FAO - Publication: search | FishSource |

Mais informação

Trophic ecology
Itens alimentares
Diet compositions
Food consumptions
Food rations
Predadores
Ecology
Ecologia
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Frequência de comprimento
Mass conversions
Recruitments
Abundances
Life cycle
Reprodução
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvas
Dinâmica larvar
Distribution
Países
Áreas FAO
Ecossistemas
Ocorrências
Introduções
BRUVS - Videos
Anatomy
Gill areas
Cérebros
Outras referências
Physiology
Body compositions
Nutrients
Oxygen consumptions
Tipo de natação
Swimming speeds
Visual pigment(s)
Sons de peixes
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genética
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Perfis para aquacultura
Estirpes
Ciguatera cases
Stamps, coins, misc.
Outreach
Colaboradores
References
Referências

Ferramentas

Relatórios especiais

Descarregue XML

Fontes da internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Consultar FishWatcher | CISTI | Catalog of Fishes: Género, Espécies | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genoma, nucleotídeo | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Árvore da vida | Wikipedia: ir para, procurar | World Records Freshwater Fishing | Registo zoológico

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5313   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00221 - 0.00624), b=3.12 (2.98 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nível Trófico (Ref. 69278):  4.5   ±0.59 se; based on food items.
Resiliência (Ref. 120179):  Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).