Rostroraja eglanteria, Clearnose skate : fisheries, bait

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Rostroraja eglanteria (Bosc, 1800)

Clearnose skate
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Rostroraja eglanteria
Picture by Flescher, D.

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: Rostroraja: Latin, rostrum = beak + Latin, raja, -ae = a sting ray (Ref. 45335).

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

; marinhas; estuarina demersal; oceanódromo (Ref. 51243); intervalo de profundidade 0 - 330 m (Ref. 92298), usually 0 - 50 m (Ref. 55280).   Subtropical; 48°N - 22°N, 91°W - 59°W (Ref. 55280)

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

Western Atlantic: Massachusetts to southern Florida (USA) and eastern Gulf of Mexico. Also northern Gulf of Mexico (Ref. 26938).

Length at first maturity / Tamanho / Peso / Idade

Maturity: Lm ?, range 49 - 60 cm
Max length : 84.0 cm TL macho/indeterminado; (Ref. 1125)

Descrição breve Morfologia | Morfometria

Small skate, with irregular darker spots and bars on dorsal surface. Translucent area on each side of mid-dorsal ridge on snout (Ref. 26938). Single row of thorns along the midridge of the back (Ref. 6902). Disk with dark brown bars and streaks and some spots. Front edges nearly straight or slightly concave (Ref. 7251).

Biologia     Glossário (ex. epibenthic)

Found from saltwater parts of estuaries and bays of 330 m (Ref. 26938). Inhabit inshore areas. Prefer waters of 10°-21°C. Feed mainly on decapod crustaceans, bivalves, polychaetes, squids and fishes (Ref. 3824). Breed while inshore (Ref. 6902). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 5.1-8.9 cm long and 3.8-5.7 cm wide (Ref. 41249, 41307, 41301, 41358).

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

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). From the work of Libby and Gilbert (1960) (Ref. 51117) and Luer and Gilbert (1985) (Ref. 38742) male and female clearnose skates mate side by side in an upright position (Ref. 49562). Actual copulation occurs when the male bites the caudal margin of the female's pectoral, bends his tail 75 degrees beneath hers and inserts one clasper, flexed ('splayed') medially 90 degrees, into her oviduct (Ref. 49562). A female displays 'back arching' and 'pectoral fin undulations' as precopulatory behavior to attract males (Ref. 49562).

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

McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)

Categoria na Lista Vermelha da IUCN (Ref. 123251)

  Preocupação menor (LC) ; Date assessed: 01 December 2008

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Harmless





Utilização humana

Pescarias: pouco comercial; isco: occasionally
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
Estirpes
Genética
Frequência dos alelos
Hereditariedade
Doenças
Processamento
Nutrients
Mass conversion
Colaboradores
Fotografias
Stamps, Coins Misc.
Sons
Ciguatera
Velocidade
Tipo de natação
Área branquial
Outras referências
Cérebros
Visão

Ferramentas

Relatórios especiais

Descarregue XML

Fontes da internet

Aquatic Commons | BHL | Cloffa | 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

Preferred temperature (Ref. 115969): 9.6 - 25.7, mean 23.5 °C (based on 342 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00145 - 0.00660), b=3.22 (3.04 - 3.40), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  3.9   ±0.3 se; based on diet studies.
Generation time: 5.5 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resiliência (Ref. 120179):  Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (K=0.20; Fec assumed to be <100).
Vulnerabilidade (Ref. 59153):  Moderate to high vulnerability (51 of 100) .
Categoria de preço (Ref. 80766):   Medium.