Dipturus doutrei (Cadenat, 1960)

Violet skate
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Dipturus doutrei   AquaMaps   Data sources: GBIF OBIS
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Dipturus doutrei
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drawing shows typical fish in this Family.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鳃亚纲 (鲨鱼与 鱼) (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 生态学

; 海洋 深海底的; 深度上下限 163 - 1200 m (Ref. 11284), usually 450 - 600 m (Ref. 36731).   深水域; 21°N - 37°S, 20°W - 27°E (Ref. 114953)

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Eastern Central Atlantic to Southwest Indian Ocean: off Mauritania to South Africa (east to Cape Province) (Ref. 114953).
東大西洋: 茅利塔尼亞到南非。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 115 cm TL 雄鱼/尚未辨别雌雄; (Ref. 114953)

简单描述 型态特徵 | 形态测量图

an all-dark longnose skate with an elongated, acutely triangular snout, and a stout tail - shorter than body and with mid-section swollen sausage-shaped; disc with narrowly rounded outer corners and smooth underside except for small denticles on snout; no thorns on nape or along back (Ref. 5578). Dark brown with irregular dark blotches dorsally; rear end of disc and pelvic fins blackish; underside dark brown with black pores and scattered lighter blotches on disc, at base of pelvic fins, around vent, and on tail (Ref. 5578).
一个全身黑色的长鼻 鱼有一个瘦长的, 锐三角形的吻, 与一矮胖的尾部短于身体而且中段肿大成腊肠形; 狭窄地体盘有圆形的外角与下面平滑的在吻上除了小的细齿; 没有在后颈上的刺或沿着背面.(参考文献 5578) 深褐色的有不规则的黑色斑块背面; 体盘与腹鳍的后端黑色的; 腹面深褐色的在体盘上有黑色的孔与分散的淡色斑块, 在腹鳍基底,排泄孔周围, 与在尾部上.(参考文献 5578)

生物学特性     字汇 (例如 epibenthic)

Occurs in deeper slope waters (Ref. 4426). Feeds on benthic fishes, shrimps and crabs (Ref. 27637, Ref. 114953). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Males reaches maturity at ca. 101 cm TL (Ref. 114953).

出现于更深的斜坡水域。 (参考文献 4426) 吃底栖的鱼,虾与螃蟹。 (参考文献 27637) 卵生的.(参考文献 50449) 卵有在贝壳上的像触角一样的突出。 (参考文献 205)

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).東大西洋: 茅利塔尼亞到南非。

主要参考文献 Upload your references | 参考文献 | 合作者 : McEachran, John | 合作者

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)

世界自然保护联盟红皮书 (Ref. 120744)

  数据缺失 (DD) ; Date assessed: 01 December 2008

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

渔业: 商业性
FAO(Publication : search) | FishSource |

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网络资源

Aquatic Commons | BHL | Cloffa | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(基因组, 核苷酸) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | 树状分类阶层 | Wikipedia(转至, 搜寻) | World Records Freshwater Fishing | 动物学的记录

Estimates based on models

Preferred temperature (Ref. 115969): 6.3 - 11.8, mean 7.3 (based on 17 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00131 - 0.00607), b=3.24 (3.06 - 3.42), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.8   ±0.66 se; Based on food items.
回复力 (Ref. 120179):  低的, 最小族群倍增时间4.5 - 14 年 (Assuming fecundity<100).
脆弱性 (Ref. 59153):  High vulnerability (65 of 100) .
价格分类 (Ref. 80766):   Medium.