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Zearaja - Species in
Rajidae - - Classification -
- Rajidae
- Rajiformes
- Elasmobranchii
- Chordata
- Animalia
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Add your observation in Fish Watcher
| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Zearaja nasuta AquaMaps Data sources: GBIF OBIS |
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Zearaja nasuta
Picture by Duffy, C.
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Picture by Duffy, C.
New Zealand country information
Common names:
Rough skate, Uku
Occurrence: endemic
Salinity: marine
Abundance: common (usually seen) | Ref: Cox, G. and M. Francis, 1997
Importance: commercial | Ref: Cox, G. and M. Francis, 1997
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Most common New Zealand skate (Ref. 26346). Occurs throughout the country (Ref. 9258) and usually found in coastal waters (Ref. 9258). Found in Chathams Island (Ref. 45493) and off the east coast of South Island (Ref. 58461). Large numbers caught in commercial trawls and the wings are sold locally or exported to Europe, especially France (Ref. 26346). Voucher specimen(s) held at the NMNZ (Ref. 5755). Also Ref. 6871, 9258.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/nz.html
National Fisheries Authority: http://www.fish.govt.nz/
Occurrences: Occurrences Point map
Main Ref: Cox, G. and M. Francis, 1997
National Database:
Occurrence: endemic
Salinity: marine
Abundance: common (usually seen) | Ref: Cox, G. and M. Francis, 1997
Importance: commercial | Ref: Cox, G. and M. Francis, 1997
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Most common New Zealand skate (Ref. 26346). Occurs throughout the country (Ref. 9258) and usually found in coastal waters (Ref. 9258). Found in Chathams Island (Ref. 45493) and off the east coast of South Island (Ref. 58461). Large numbers caught in commercial trawls and the wings are sold locally or exported to Europe, especially France (Ref. 26346). Voucher specimen(s) held at the NMNZ (Ref. 5755). Also Ref. 6871, 9258.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/nz.html
National Fisheries Authority: http://www.fish.govt.nz/
Occurrences: Occurrences Point map
Main Ref: Cox, G. and M. Francis, 1997
National Database:
Common names from other countries
Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa
Elasmobranquios (tiburones y rayas) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
More on authors: Müller & Henle.
More on authors: Müller & Henle.
Environment: milieu / climate zone / depth range / distribution range Ecología
marino demersal; rango de profundidad 10 - 1500 m (Ref. 26346). Temperate
Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri
Southwest Pacific: endemic to New Zealand.
Length at first maturity / Tamaño / Peso / Age
Maturity: Lm 59.0 range ? - ? cm
Max length : 118 cm TL macho / no sexado; (Ref. 26346); common length : 62.0 cm TL macho / no sexado; (Ref. 9258); edad máxima reportada: 9 años (Ref. 47618)
Max length : 118 cm TL macho / no sexado; (Ref. 26346); common length : 62.0 cm TL macho / no sexado; (Ref. 9258); edad máxima reportada: 9 años (Ref. 47618)
Short description Claves de identificación | Morfología | Morfometría
Brown dorsally, mottled with white and black spots, and a large dark blotch on each wing; white ventrally (Ref. 26346).
Inhabit the continental shelf and upper slope (Ref. 26346); usually in coastal waters (Ref. 9258). Found partially buried in sand (Ref. 26346). Feed on fish, shellfish, crabs, and worms (Ref. 114953, 26346). 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 10.2-12.7 cm long and 6.3-8.3 cm wide (Ref. 41249, 41308).
Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Young hatching at about 18-20 cm (Ref. 26346). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).
Main reference
Upload your references | Referencias | Coordinador : 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)
Threat to humans
Harmless
Human uses
Pesquerías: comercial
FAO(Publication : search) | FishSource | Sea Around Us
Más información
Trophic ecology
componentes alimenticios
Composición de la dieta
consumo de alimento
Food rations
Despredadores
componentes alimenticios
Composición de la dieta
consumo de alimento
Food rations
Despredadores
Population dynamics
Coeficiente del crecimiento para
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Reclutamiento
Abundancia
Coeficiente del crecimiento para
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Reclutamiento
Abundancia
Life cycle
Reproducción
Madurez
Fecundidad
Puesta
Spawning aggregations
Huevos
Egg development
Larva
Dinámica larvaria
Reproducción
Madurez
Fecundidad
Puesta
Spawning aggregations
Huevos
Egg development
Larva
Dinámica larvaria
Anatomy
Superficie branquial
Brain
Otolith
Superficie branquial
Brain
Otolith
Physiology
Body composition
Nutrients
Consumo del oxígeno
Tipo de natación
Velocidad de natación
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Consumo del oxígeno
Tipo de natación
Velocidad de natación
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genética
Heterozygosity
heritabilidad
Genética
Heterozygosity
heritabilidad
Human related
Aquaculture systems
Perfiles de acuicultura
Razas
Ciguatera cases
Stamps, coins, misc.
Aquaculture systems
Perfiles de acuicultura
Razas
Ciguatera cases
Stamps, coins, misc.
Herramientas
E-book | Guía de campo | Asistente para frecuencias de tallas | Herramienta de ciclo de vida | Mapa de puntos | Classification Tree
| Catch-MSY |
Special reports
Download XML
Fuentes de Internet
Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(Género, Especie) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Árbol de la vida | Wikipedia(Go, búsqueda) | World Records Freshwater Fishing | Expediente Zoológico
Estimates based on models
Preferred temperature (Ref. 115969): 7.4 - 12.6, mean 9.2 (based on 95 cells).
Phylogenetic diversity index (Ref. 82804): PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nivel trófico (Ref. 69278): 3.7 ±0.57 se; based on food items.
Resiliencia (Ref. 120179): Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153): High vulnerability (59 of 100).
Climate Vulnerability (Ref. 125649): High to very high vulnerability (70 of 100).