Bathyraja interrupta, Bering skate

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Bathyraja interrupta (Gill & Townsend, 1897)

Bering skate
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Bathyraja interrupta   AquaMaps   Data sources: GBIF OBIS
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Bathyraja interrupta
Picture by Orlov, A.

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

Elasmobranchii 板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) > Rajiformes (Skates and rays) > Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335);  interrupta: Name refers to the interrupted row of thorns down the middorsal and tail..
More on authors: Gill & Townsend.

Environment: milieu / climate zone / depth range / distribution range 生态学

海洋 深海底的; 深度上下限 23 - 1500 m (Ref. 27436), usually 200 - 500 m (Ref. 126515). 深水域

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

North Pacific: Bering Sea, Alaska south to British Columbia, Canada.
北太平洋: 到 Cortez 淺堆,美國的南加州的在白令海西部與 Agattu 島 (阿留申群島) 中的外海 Navarin 海岬。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 89.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 126515)

简单描述 型态特徵 | 形态测量图

This moderately-sized skates (82.5 cm TL) with disc length (47.7-54.0% TL) are distinguished by the following; head length moderate (18.4-21.4% TL), posterior lobe of pelvic fins are long (10.4-23.4% TL); claspers are long and robust, tip rounded and not bulbous, no pseudosiphon, with a weak, but long pseudorhipidion, U-shaped cleft, projection rounded and protrudes from tip, has a very large sentina, sentinel present; teeth in 22-32 rows on upper jaw, teeth in 23-32 rows on lower jaw; total vertebrae 133; dorsal surface covered in small, sandpaper-like prickles; thorns in a non-continuous row, mature males with strong alar thorns, no malar thorns, middorsal thorns strong (1-8), nuchal thorns robust (2-5), tail thorns moderate (18-26), interdorsal thorns weak (0-1). Colouration: dorsal brown to grey, with numerous small dark spots on body; ventral white, often with dark brown blotches on underside of tail (Ref. 126515).
一根单列的坚硬锐利的棘沿着来自关于 1个眼间隔在后眼窝到第一背鳍的点的背部中央线; 在肩肢带骨上的 1 或 2 大的棘; 在雄性中, 在胸鳍的顶端附近的大锐利的棘的区块而且延伸到吻沿着鳍的边缘.(参考文献 6885) 尾鳍缩得很小; 腹鳍大的与凹槽深的.(参考文献 6885) 所有的鳍覆盖着鳞片了。 (参考文献 6885) 成鱼暗蓝灰色背面; 稚鱼一全灰褐色的有小褐色斑点; 在腹面上的白色; 在尾部的任一侧边上的白色的斑点显着的在小的个体中.(参考文献 6885)

生物学特性     字汇 (例如 epibenthic)

Inhabit the outer continental shelf, on mud or sand bottoms (Ref. 27436). Frequently found buried in substrate (Ref. 27436). Feed on benthic invertebrates including euphausiids, crabs, and various shrimps (e.g., pandalids, hippolytids, crangonids) and bony fishes. Reported size at maturity for males is 69-70 cm TL and for females 71-72 cm TL, with a maximum size of at least 89 cm TL (Ref. 126515). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are deposited in sandy or muddy flats (Ref. 205). Egg cases are small (7.8-7.9 cm TL), colour golden brown, covered with small and coarse prickles that form longitudinal rows. The egg cases with lateral keels very wide, horns taper and become thin and filamentous at their ends, with the anterior horn being more robust (Ref. 126515). Although the pectoral fins may be used to prepare a variety of dishes, they are generally considered not saleable, and incidental catches are usually discarded (Ref. 27436). Occasionally used to produce mink feed and fertilizer (Ref. 27436). Minimum depth reported from Ref. 6793.

在泥或砂质底部上, 栖息于大陆架外缘。 (参考文献 27436) 时常发现被埋藏在底部之中的。 (参考文献 27436) 捕食底栖的无脊椎动物与鱼类。 卵生的。 明显的成对出现。 幼鱼可能倾向跟随大的个体, 例如他们的母亲.(参考文献 205) 卵为长方形鞘囊具有僵硬的触角沈积在沙滩或泥滩的角落.(参考文献 205) 卵鞘是 4.9-5.9 公分长与 4.0-5.0 公分宽的.(参考文献 41300) 6-9个卵生产每年。 (参考文献 41300) 虽然胸鳍可能是用来准备多种盘子, 他们通常被认为不是可卖, 与附带的捕获通常被丢弃.(参考文献 27436) 偶然地用来生产貂的饲料与肥料.(参考文献 27436) 最小深度记录自了参考文献 6793.

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). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).北太平洋: 到 Cortez 淺堆,美國的南加州的在白令海西部與 Agattu 島 (阿留申群島) 中的外海 Navarin 海岬。

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

Knuckey, J.D.S. and D.A. Ebert, 2022. A taxonomic revision of Northeast Pacific softnose skates (Rajiformes: Arhynchobatidae: Bathyraja Ishiyama). Zootaxa 5142(1):1-89. (Ref. 126515)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 15 October 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 1 - 5.4, mean 2.1 °C (based on 298 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00468 (0.00309 - 0.00707), b=3.05 (2.93 - 3.17), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.4   ±0.46 se; based on food items.
回复力 (Ref. 120179):  非常低的, 最小族群倍增时间超过14 年 (Fec=6).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (68 of 100).
Nutrients (Ref. 124155):  Calcium = 6.86 [1.23, 37.25] mg/100g; Iron = 0.31 [0.08, 1.00] mg/100g; Protein = 15.3 [12.7, 17.9] %; Omega3 = 0.488 [0.155, 1.875] g/100g; Selenium = 15.6 [4.2, 49.6] μg/100g; VitaminA = 8.6 [2.0, 38.8] μg/100g; Zinc = 0.38 [0.19, 0.71] mg/100g (wet weight);