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Bathyraja kincaidii (Garman, 1908)

Sandpaper Skate
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drawing shows typical species in Arhynchobatidae.

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);  kincaidii: Named after Professor Trevor Kincaid from the University of Washington (Ref. 6885).

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

海洋 深海底的; 深度上下限 119 - 1372 m (Ref. 126515).

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

North Pacific: Canada (British Columbia) south to Baja California, Mexico. Possibly up to Alaska (may be confused with Bathyraja interrupta), but this northern extent cannot be verified.

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 62.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 126515); 58.0 cm TL (female); 最大年龄: 18 年 (Ref. 126515)

简单描述 检索表 | 型态特徵 | 形态测量图

This small and rounded skate (max 56.0 cm TL), with short disc length (29.0-54.1% TL), width (61.2-67.3% TL), head length (15.9-21.3% TL), and internarial distance (5.2-6.7% TL); claspers are long and thin, rounded tip not bulbous, no pseudosiphon, with an average pseudorhipidion and not conspicuously projecting from the tip, V-shaped cleft, has a projection and an average sentina, projection is pointed; teeth in 22-31 rows on upper jaw and 18-31 rows on lower jaw; pectoral radials 69-72; pelvic fins17-22; total vertebrae 132; dorsal surface covered in uniform prickles; thorns present on dorsal surface, males with well-developed alar thorns, no malar thorns, middorsal thorns range in number (0-9), nuchal thorns strong (3-7), tail thorns few (14-22), scapular vary in count (0-2), interdorsal thorns weak or obsolete (0-2), thorns in a continuous row. Colouration: dorsal mottled brown to grey, with numerous small dark spots; ventral coloration white, usually with dark brown blotches on underside of tail (Ref. 126515).

生物学特性     字汇 (例如 epibenthic)

Common on the continental shelf-slope break. Inhabits deep waters where inidividuals are usually in deeper waters at the southern edge of distribution. Reported to feed on invertebrates (euphausiids, polychaetes, amphipods, crabs, and mysids). Size at maturity for males 44 cm TL and 45 cm TL for females, where males grow to 62 cm TL and females to 58 cm TL; size at birth is 12-16 cm TL. Estimated maximum age for females 17 years and for males 18 years, Egg cases are very small (5.0-6.6 cm TL), colour light to dark brown, with dorsal surface covered with fine fibers, while ventral with either a thin fibrous layer or without. The egg cases reported to have long, inward bending horns at each corner and strong lateral keels, the horns flattening and becoming thread-like at the tips (Ref. 126515).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼


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: 07 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

 





人类利用

FAO - Publication: search | FishSource |

更多信息

Trophic ecology
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特别资料

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网络资源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | 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 | Socotra Atlas | 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

Phylogenetic diversity index (Ref. 82804):  PD50 = No PD50 data   [Uniqueness, from 0.5 = low to 2.0 = high].
营养阶层 (Ref. 69278):  3.9   ±0.7 se; based on size and trophs of closest relatives
Generation time: 6.6 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
回复力 (Ref. 120179):  低的, 最小族群倍增时间4.5 - 14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (45 of 100).