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Dentiraja australis  (Macleay, 1884)

Sydney skate
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Image of Dentiraja australis (Sydney skate)
Dentiraja australis
Female picture by Kyne, P.M.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)

Environment / Climate / Range Ecology

Marine; demersal; depth range 50 - 180 m (Ref. 6871).   Temperate, preferred ?; 27°S - 36°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Pacific: endemic to Australia.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 43 - 48 cm
Max length : 50.0 cm TL male/unsexed; (Ref. 6871)

Biology     Glossary (e.g. epibenthic)

Found on the continental shelf (Ref. 6871, 75154). 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 measure 5.7 cm long and 3.2 cm wide (Ref. 41308).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

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).

Main reference Upload your references | References | Coordinator : McEachran, John | Collaborators

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)

IUCN Red List Status (Ref. 115185)

  Vulnerable (VU) (A2bd+4bd)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Other (Ref. 10311)




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

Countries
FAO areas
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Occurrences
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Ecology
Diet
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Common names
Synonyms
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Predators
Ecotoxicology
Reproduction
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Spawning
Fecundity
Eggs
Egg development
Age/Size
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Length-weight
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Length-frequencies
Morphometrics
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Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
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Tools

E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY |

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Common names | Photos

Internet sources

BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | 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 | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00140 - 0.00684), b=3.20 (3.02 - 3.38), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  4.1   ±0.7 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Vulnerability (Ref. 59153):  Moderate vulnerability (40 of 100) .