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Discopyge tschudii Heckel, 1846

Apron ray
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Discopyge tschudii   AquaMaps   Data sources: GBIF OBIS
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Image of Discopyge tschudii (Apron ray)
Discopyge tschudii
Picture by Schories, D.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Torpediniformes (Electric rays) > Narcinidae (Numbfishes)
Etymology: Discopyge: Greek, diskos = disc shape + Greek, pyge = tail (Ref. 45335).
Eponymy: Baron Dr Johann Jakob von Tschudi (1818–1889) was a Swiss explorer, physician, diplomat, naturalist, hunter, anthropologist, cultural historian, language researcher and statesman. [...] (Ref. 128868), visit book page.
More on author: Heckel.

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

Marine; demersal; depth range 5 - 165 m (Ref. 38391). Subtropical; 15°S - 56°S, 76°W - 50°W (Ref. 114953)

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

Southeast Pacific: Peru and Chile (Ref. 5530). Southwest Atlantic: Uruguay and Argentina (Ref. 2806).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 53.8 cm TL male/unsexed; (Ref. 38391); 44.2 cm TL (female); common length : 42.0 cm TL male/unsexed; (Ref. 114953)

Biology     Glossary (e.g. epibenthic)

A benthic species found on continental shelf. Produces 2-5 pups during each gestation (up to 12 reported from Argentina). Segregates by sex. Maturity size for males at 23-29 cm TL, females probably smaller (at least in Argentina); birth size at 8-9 cm TL (Ref. 114953).

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

Main reference Upload your references | References | Coordinator : Carvalho, Marcelo | Collaborators

Menni, R.C., R.A. Ringuelet and R.H. Aramburu, 1984. Peces marinos de la Argentina y Uruguay. Editorial Hemisferio Sur S.A. Buenos, Aires, Argentina. 359 p. (Ref. 2806)

IUCN Red List Status (Ref. 130435: Version 2024-1)

  Least Concern (LC) ; Date assessed: 08 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Other





Human uses

Fisheries: of no interest
FAO - Publication: search | FishSource |

More information

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References

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | 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 | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 7.3 - 14.9, mean 10.4 °C (based on 197 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00470 - 0.02937), b=2.88 (2.66 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.3   ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (Assuming fecundity<100).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (42 of 100).
Nutrients (Ref. 124155):  Calcium = 16.4 [2.1, 336.5] mg/100g; Iron = 0.857 [0.082, 10.406] mg/100g; Protein = 14.6 [10.6, 20.1] %; Omega3 = 0.27 [0.10, 0.74] g/100g; Selenium = 29 [5, 136] μg/100g; VitaminA = 5.81 [0.46, 69.02] μg/100g; Zinc = 0.792 [0.054, 9.133] mg/100g (wet weight); based on nutrient studies.