Bythaelurus canescens, Dusky catshark

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相關魚種
- 魚種在
  Bythaelurus
- 魚種在
  Pentanchidae
- - 分類 -
- Pentanchidae
- Carcharhiniformes
- Elasmobranchii
- Chordata
- Animalia

Bythaelurus canescens (Günther, 1878)

Dusky catshark

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Native range | All suitable habitat | Point map | Year 2050

This map was computer-generated and has not yet been reviewed.

Bythaelurus canescens AquaMaps Data sources: GBIF OBIS

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Image of Bythaelurus canescens (Dusky catshark)

Bythaelurus canescens
Female picture by Elasmolab Universidad Austral de Chile

Common names from other countries

Holbiche sombre, Pejegato oscuro, قِرش قِطّ قاتم, ... more

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (sharks and rays) > Carcharhiniformes (Ground sharks) > Pentanchidae (Deepwater catsharks)
Etymology: Bythaelurus: bythos (Gr.), depths of the sea, referring to its deepwater habitat; ailouros (Gr.), cat, probably an allusion to the vernacular “catshark,” so named for its cat-like eyes (See ETYFish); canescens: Latin for hoary gray, referring to its “uniform greyish” coloration (presumably in spirits since this shark is brown in life) (See ETYFish).
More on author: Günther.

Environment: milieu / climate zone / depth range / distribution range 生態學

海洋深海底的; 深度上下限 250 - 700 m (Ref. 244). 深水域; 2°S - 56°S, 81°W - 70°W

分布國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Southeast Pacific: Peru and Chile to the Straits of Magellan.
東南太平洋: 祕魯與智利到麥哲倫海峽。

大小 / 重量 / 年齡

Maturity: L_m ? range ? - ? cm
Max length : 70.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 244)

Found on the upper continental slopes primarily on mud, but also on rock bottoms. Feeds on bottom invertebrates. Oviparous, with a single egg per oviduct at a time. Not utilized at present.

在泥，也在岩石底部上上主要地棲息於大陸坡上層了。吃底棲無脊椎動物。卵生的, 只有一個卵每個輸卵管一次。目前未被人類利用。

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚

Oviparous; apparently laying a single egg per oviduct at a time (Ref. 244).東南太平洋: 祕魯與智利到麥哲倫海峽。

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)

IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)

次級保育類動物, 見 IUCN 紅皮書 (VU) (A2cd); Date assessed: 06 February 2019

CITES (Ref. 131153)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

無害處的

人類使用

漁業: 沒有興趣

FAO(漁業: 產生; publication : search) | FishSource | 周邊海洋

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Estimates based on models

Preferred temperature (Ref. 115969): 5.8 - 9.5, mean 6.3 (based on 13 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00355 (0.00175 - 0.00721), b=3.08 (2.90 - 3.26), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

營養階層 (Ref. 69278): 4.5 ±0.4 se; based on diet studies.

回復力 (Ref. 120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (48 of 100).

Climate Vulnerability (Ref. 125649): Low to moderate vulnerability (34 of 100).

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