You can sponsor this page

Margrethia obtusirostra Jespersen & Tåning, 1919

Bighead portholefish
Adicionar sua observação em Fish Watcher
Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Margrethia obtusirostra   AquaMaps   Data sources: GBIF OBIS
Carregue seu(sua) Fotos e vídeos
Pictures | Imagem do Google
Image of Margrethia obtusirostra (Bighead portholefish)
Margrethia obtusirostra
Picture by Dubosc, J.

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

> Stomiiformes (Lightfishes and dragonfishes) > Gonostomatidae (Bristlemouths)
Etymology:

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

marinhas batipelágico; intervalo de profundidade 100 - 1739 m (Ref. 58018). Deep-water; 33°N - 49°S, 98°W - 154°W

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

Eastern Atlantic: off Portugal south to Morocco including the Azores, Madeira and Canary Islands; off Cape Agulhas, South Africa (Ref. 3991). Western Atlantic: Southeastern Florida and Bermuda to Venezuela, including the Gulf of Mexico and the Caribbean Sea (Ref. 37039). Elsewhere, South Atlantic, tropical and subtropical Indo-Pacific.

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 8.3 cm SL macho/indeterminado; (Ref. 4463)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 0; Raios dorsais (total) : 15 - 16; Espinhos anais: 0; Raios anais : 21 - 26. Yellowish in color, darker dorsally, opercle silver, caudal base and peduncle dark brown (Ref. 3991). Pectoral and pelvic fins colorless (Ref. 3991). Dorsal adipose fin present.

Biologia     Glossário (p.ex. epibenthic)

Usually associated with continental and island slopes (Ref. 4769). Mesopelagic (Ref. 58302). Occurs at 100-300 m by day, 200-500 m by night (Ref. 4463). Feeds on crustaceans and small fishes (Ref. 4769). Photophore development complete by about 27 mm SL (Ref. 4769).

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

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Quéro, J.-C., J.C. Njock and M.M. de la Hoz, 1990. Gonostomatidae. p. 283-292. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4463)

Status na Lista Vermelha da UICN (Ref. 130435)

  Dados insuficientes (DD) ; Date assessed: 23 May 2013

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

  Harmless





Uso pelos humanos

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.
Frequências de comprimento
Mass conversions
Recruitments
Abundances
Life cycle
Reprodução
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvas
Dinâmica larval
Distribution
Países
Áreas da FAO
Ecossistemas
Ocorrências
Introduções
BRUVS - Videos
Anatomy
Gill areas
Cérebros
Otólitos
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

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 - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genoma, nucleotídeo | GloBI | 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 | Zoobank | Registro zoológico

Estimates based on models

Preferred temperature (Ref. 123201): 5.7 - 14.7, mean 9.2 °C (based on 768 cells).
Índice de diversidade filogenética (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  3.5   ±0.48 se; based on food items.
Resiliência (Ref. 120179):  Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).