Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii (sharks and rays) > Rajiformes
(Skates and rays) > Rajidae
Etymology: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335); maugeanus: The epithet maugeana was derived to draw a link with the Australian cool temperate biogeographic region, the Maugean Province, in which this skate is a keystone species. Its common name, the Maugean Skate, follows this theme..
More on authors: Last & Gledhill.
Environment: milieu / climate zone / depth range / distribution range
Brackish; benthopelagic. Temperate
Southwest Pacific: Tasmania. Endemic to Bathurst and Macquarie Harbours, in southwestern Tasmania. Occurs primarily in the upper, oligo-mesohaline regions of these estuaries (Ref. 58362).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 70.6 cm TL male/unsexed; (Ref. 58362); 84.0 cm TL (female)
The total available habitat is less than 300 km2 and initial surveys suggest that the population is likely to be less than 1000 individuals (Treloar pers. comm.).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Last, P.R. and D.C . Gledhill, 2007. The Maugean skate, Zearaja maugeana sp. nov. (Rajiformes: Rajidae) a micro-endemic, Gondwanan relict from Tasmanian estuaries. Zootaxa 1494:45-65. (Ref. 58362)
IUCN Red List Status (Ref. 125652)
Endangered (EN) (B1ab(i,ii,iii,iv)+2ab(i,ii,iii,iv)); Date assessed: 20 February 2015
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00142 - 0.00642), b=3.23 (3.06 - 3.40), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.8 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Moderate to high vulnerability (54 of 100).