Zearaja chilensis, Yellownose skate

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Zearaja chilensis (Guichenot, 1848)

Yellownose skate
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Zearaja chilensis   AquaMaps   Data sources: GBIF OBIS
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Image of Zearaja chilensis (Yellownose skate)
Zearaja chilensis
Picture by Johnny Labbe/Mauricio Ahumada

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

Elasmobranchii (tubarões e raias) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: More on author: Guichenot.

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

marinhas demersal; intervalo de profundidade ? - 40 m (Ref. 120403). Temperate; 4°C - 19°C (Ref. 104541); 18°S - 57°S, 75°W - 52°W

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

Southeast Pacific: central Chile to the Strait of Magellan.

Length at first maturity / Tamanho / Peso / Idade

Maturity: Lm 103.5, range 94 - 100 cm
Max length : 152 cm TL macho/indeterminado; (Ref. 120403)

Descrição breve Morfologia | Morfometria

This medium-sized speies of Dipturus (up to at least 118.0 cm TL) is distinguished from its congeners by the following set of characters: when fresh, the dorsal surface of body is plain brownish to greyish, with some lighter small spots randomly distributed dorsally; one red to purple ocellus over center of each pectoral fin; ocelli with well-defined margins, irregular in shape, but often indistinguishable in fixed specimens; ventrally, white to grey with lighter patches over area of gill openings and beneath mouth; area flanking rostral cartilage membranous and slightly translucent and opaque and yellowish when fixed. Further differs by having a relatively broad disc with angular apices, its width 76.4 (75.0; 77.0) % TL; snout relatively short and broad; tail longer in males (42.2 [40.8] % TL) than in female voucher ([38.8] % TL); ventral head length 35.1 (34.2; 37.7) % TL; preorbital snout length 2.4 (2.9; 2.9) times distance between orbits; orbit diameter 0.5 (0.5; 0.6) of inter-orbital width; in males, the dorsal surface of disc and tail with central longitudinal band of dermal denticles extending from anterior margin of rostral cartilage to tail, including anterior margins of dorsal and caudal fins; a thin band of dermal denticles at anterior margins of pectoral fins, extending from anterior fontanelle to front line of alar thorn patches; dorsal surface of disc and tail of females covered with small dermal denticles, except for external margins of pectoral fins, pelvic fins, and area surrounding caudo-central thorns; with orbital thorns; a single nuchal thorn is often absent; both sexes without scapular thorns; a patch of malar thorns only in adult males; alar thorns only in adult males; medial-dorsal and lateral-dorsal thorns may be present in large specimens, especially in large females; small central-caudal thorns mostly arranged in longitudinal pairs in males and females, with two additional longitudinal rows of fine, sharp and posteriorly oriented lateral-caudal thorns may be present in large specimens; ventral sensory pores are small, distinct, black-edged, most abundant on snout and around mouth, scattered over area between gill openings, sparsely spaced on abdominal area and pectoral fins (Ref. 120403).

Biologia     Glossário (ex. epibenthic)

Oviparous (Ref. 50449). Reported size at hatching and incubation period 17.2 cm TL and 252 days, respectively (Ref. 120403). Eggs have horn-like projections on the shell (Ref. 205). Inhabits sandy and muddy bottoms at depths (Ref. 104541).

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

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).

Referência principal Upload your references | Referências | Coordenador : McEachran, John | Colaboradores

Concha, F.J., J. Caira, D.A. Ebert and J.H.W. Pomperi, 2019. Redescription and taxonomic status of Dipturus chilensis (Guichenot, 1848), and description of Dipturus lamillai sp. nov. (Rajiformes: Rajidae), a new species of long-snout skate from the Falkland Islands. Zootaxa 4590(5):501-524. (Ref. 120403)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

  Ameaçada (EN) (A2bd); Date assessed: 06 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Harmless





Utilização humana

FAO - Publication: search | FishSource | Sea Around Us

Mais informação

Nomes comuns
Sinónimos
Metabolismo
Predadores
Ecotoxicologia
Reprodução
Maturidade
Desova
Agregação para desova
Fecundidade
Ovos
Desenvolvimento dos ovos
Idade/Tamanho
Crescimento
Comprimento-peso
Comprimento-comprimento
Frequência de comprimento
Morfometria
Morfologia
Larvas
Dinâmica larvar
Recrutamento
Abundância
BRUVS
Referências
Aquacultura
Perfil para aquacultura
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Genética
Electrophoreses
Hereditariedade
Doenças
Processamento
Nutrients
Mass conversion
Colaboradores
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Stamps, Coins Misc.
Sons
Ciguatera
Velocidade
Tipo de natação
Área branquial
Outras referências
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Relatórios especiais

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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 | Bases de dados nacionais | 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

Preferred temperature (Ref. 123201): 4.5 - 10.6, mean 6.7 °C (based on 334 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00133 - 0.00596), b=3.25 (3.08 - 3.42), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  4.5   ±0.6 se; based on diet studies.
Generation time: 9.5 (8.1 - 12.6) years. Estimated as median ln(3)/K based on 13 growth studies.
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).
Nutrients (Ref. 124155):  Calcium = 3.18 [0.45, 55.95] mg/100g; Iron = 0.198 [0.018, 2.222] mg/100g; Protein = 15.2 [12.7, 18.3] %; Omega3 = 0.698 [0.304, 1.673] g/100g; Selenium = 18.6 [3.7, 89.1] μg/100g; VitaminA = 4.17 [0.30, 53.72] μg/100g; Zinc = 0.25 [0.02, 2.75] mg/100g (wet weight); based on nutrient studies.