Dipturus argentinensis, Argentine skate

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Dipturus argentinensis Díaz de Astarloa, Mabragaña, Hanner & Figueroa, 2008

Argentine skate
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Dipturus argentinensis   AquaMaps   Data sources: GBIF OBIS
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Image of Dipturus argentinensis (Argentine skate)
Dipturus argentinensis
Picture by Díaz de Astarloa, J.M.

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

Пластиножаберные (акулы и скаты) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335);  argentinensis: The specific epitet argentinensis is named in reference to the Argentine Sea where the type material was collected..

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

морской донно-пелагический; пределы глубины 87 - 142 m (Ref. 79571). Temperate; 6°C - 9°C (Ref. 79571)

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

Southwest Atlantic: Argentina, Patagonia.

Size / Вес / Возраст

Maturity: Lm ?  range ? - ? cm
Max length : 93.5 cm TL самец/пол неопределен; (Ref. 79571)

Краткое описание морфология | морфометрия

This species is distinguished by the following set of characters: the dorsal surface of disc is brown purplish with no distinct ocelli or blotches margined with dark brown on pectoral and pelvic fins; the upper surface of the disc smooth except few small spinules scattered on tip of snout; presence of ocular thorns and absence of scapular thorns; single nuchal thorn may be either present or absent; one median row of 10 to 24 small caudal thorns; the dorsal and caudal fins scattered with very few spinules; 1-2 interdorsal thorns; tail relatively long and thin, approximately half the total length; ventral surface of disc as dark as the upper side, smooth except few small spinules scattered on tip of snout; interbranchial space with no prickles (Ref. 79571).

биология     глоссарий (например epibenthic)

According to the capture localities of the type specimens, Dipturus argentinensis appears to have a restricted range distribution occurring in the central and southern Patagonian region on the southwest Atlantic. No recorded specimens have been reported northwards 45º S. The region where the type specimens of the Argentine skate were collected is dominated by sub-Antarctic cold-temperate waters with low salinity. These waters have a predominantly NNE flow and form the Patagonian Current (Brandhorst & Castello 1971). Range temperatures and salinities of the localities where the specimens were collected were 5.9-9.38ºC, and 33.24-33.64 ups, respectively. These physical characteristics agree with the Magellanic Biogeographic Province where the specimens have been captured (Ref. 79571).

Life cycle and mating behavior половая зрелость | размножение | нерест | икра | Fecundity | личинки

Основная ссылка Upload your references | ссылки | координатор : McEachran, John | соавторы

Díaz de Astarloa, J.M., E Mabragaña, R. Hanner and D.E. Figueroa, 2008. Morphological and molecular evidence for a new species of longnose skate (Rajiformes: Rajidae: Dipturus) from Argentinean waters based on DNA barcoding. Zootaxa 1921:35-46. (Ref. 79571)

Статус Красного Списка МСОП (Ref. 130435)

  Нехватка данных (DD) ; Date assessed: 01 July 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Harmless





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Estimates based on models

Preferred temperature (Ref. 123201): 4.1 - 9.6, mean 7.6 °C (based on 55 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00133 - 0.00596), b=3.25 (3.08 - 3.42), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.9   ±0.6 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref. 120179):  низкий, минимальное время удвоения популяции 4.5-14 лет (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  High vulnerability (57 of 100).