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Dipturus trachyderma (Krefft and Stehmann, 1975)
Life   Vertebrata   Fish   Rajidae   Dipturus


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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Dipturus trachyderma (Krefft & Stehmann , 1975)

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Dipturus trachyderma   AquaMaps   Data sources: GBIF OBIS
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Pictures | Google image Image of Dipturus trachyderma (Ray) Dipturus trachyderma
Picture by Lloris, D.

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

Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates) > Rajinae
Etymology: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335 ) .

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

Marine; bathydemersal; depth range 93 - 450 m (Ref. 27092 ).   Deep-water; 2°S - 57°S, 99°W - 42°W (Ref. 58839 )

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

Southwest Atlantic: between 45°36.1'S, 66°12.2'W and 51°6.8'S, 62°24'W to Uruguay (Ref. 58839 ). Southeast Pacific: Bahia de San Vicente to Seno Reloncavi, Puerto Montt.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 264 cm TL male/unsexed; (Ref. 114953 )

Biology     Glossary (e.g. epibenthic)

Occurs on sandy and muddy bottoms of outer continental shelf and upper slope, also found at shallower depth 20m. Feeds mainly on bony fishes and crustaceans (Ref. 114953 ). Oviparous (Ref. 50449 ). Eggs have horn-like projections on the shell (Ref. 205 ); egg cases ca. 20-30 cm long (Ref. 114953 ). Reaches maturity at ca. 13 years (Ref. 114953 ).

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

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449 ).

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. 120744 )

  Vulnerable (VU)  (A4bd); Date assessed: 01 March 2007

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes ( gen. , sp. ) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank( genome , nucleotide ) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Tree of Life | Wikipedia( Go , Search ) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969 ): 4.7 - 12.2, mean 6 (based on 124 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00282 (0.00128 - 0.00621), b=3.24 (3.06 - 3.42), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ). Trophic Level (Ref. 69278 ):  4.1   ±0.6 se; Based on size and trophs of closest relatives Resilience (Ref. 69278 ):  Low, minimum population doubling time 4.5 - 14 years (Assuming fecundity<100). Vulnerability (Ref. 59153 ):  Very high vulnerability (86 of 100) .

Entered by Garilao, Cristina V. Modified by Abucay, Luisa Fish Forum
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