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Polysteganus mascarenensis Iwatsuki & Heemstra, 2011

Mascarene Red Seabream
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Image of Polysteganus mascarenensis (Mascarene Red Seabream)
No image available for this species;
drawing shows typical species in Sparidae.

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

> Eupercaria/misc (Various families in series Eupercaria) > Sparidae (Porgies)
Etymology: Polysteganus: Greek, polys = a lot of + Greek, stego, stege = covered (Ref. 45335);  mascarenensis: The specific name mascarenensis refers to the type locality for the species (Ref. 87808).

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

marinhas bentopelágico, usually 258 - 305 m (Ref. 87808). Tropical; 15°S - 16°S, 61°E - 62°E

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

Indian Ocean: Currently known only from the Seychelles, Mascarene Plateau, and Mascarene Islands (15°23.32'S‒15°41.11' S 61°04.54'E‒61°13.41'E) at a depth of 258‒305 m. However, the species is likely to have a wider distribution in Indian Ocean as the authors conclude that the Dentex sp. collected from Saya de Malha Bank, southeastern area of Seychelles Islands (Kyushin et al. 1977) is conspecific with P. mascarenensis (Ref. 87808).

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm SL macho/indeterminado; (Ref. 87808)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Distinguished from all congeners of Polysteganus by the following combination of characters: dorsal-fin rays XII,10; anal-fin rays III, 8; scales rows between 10th dorsal-fin spine base and lateral line scale 6½; pored lateral line scales 51‒54; snout blunt and broad, its length 2.2‒2.3 times /orbit diameter; bony bulge before and above eye, forming a low median ridge; caudal fin emarginate, nearly truncate if widely spread; mouth large and jaws robust, especially upper jaw; height of posterior end of upper jaw under first two infraorbitals greater than half of orbit diameter (or much greater than pupil diameter); head and body uniform orange-red, dorsally, paler ventrally; all fins uniform reddish orange colour, but membrane of spinous dorsal-fin hyaline reddish orange; rear margin of operculum red; no dark blotch on lateral line below middle dorsal-fin spines, and no blue or cobalt longitudinal lines on body (Ref. 87808).

Biologia     Glossário (p.ex. epibenthic)

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

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Iwatsuki, Y. and P.C. Heemstra, 2011. Polysteganus mascarenensis, a new sparid fish species from Mascarene Islands, Indian Ocean. Zootaxa 3018:13-20. (Ref. 87808)

Status na Lista Vermelha da UICN (Ref. 130435)

  Dados insuficientes (DD) ; Date assessed: 20 March 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

  Harmless





Uso pelos humanos

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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 | 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

Índice de diversidade filogenética (Ref. 82804):  PD50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00609 - 0.02604), b=3.04 (2.87 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  4.2   ±0.7 se; based on size and trophs of closest relatives
Resiliência (Ref. 120179):  Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (49 of 100).