Dichichthys melanobranchus, Blackgill catshark

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相关物种
- 物种在
  Dichichthys
- 物种在
  Dichichthyidae
- - 分类 -
- Dichichthyidae
- Carcharhiniformes
- Myxini
- Chordata
- Animalia

Dichichthys melanobranchus Chan, 1966

Blackgill catshark

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Dichichthys melanobranchus
Picture by FAO

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

Myxini 盲鳗纲 (丑鱼) (hagfishes) > Carcharhiniformes (Ground sharks) > Dichichthyidae ()
Etymology: Dichichthys: Name from the combination of the Greek 'dicho'- meaning 'to branch in two' and 'ichthys' for 'fish', with this genus being intermediate between the Galeus-Parmaturus complex and Apristurus; melanobranchus: melanos (Gr.), black; branchos (Gr.), gill, referring to blackish color on gill septa (See ETYFish).

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

海洋深海底的; 深度上下限 540 - 810 m (Ref. 244). 深水域; 21°N - 18°N

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

Northwest Pacific: known from only 3 specimens taken in the South China Sea. Collected less than a degree north of the northwestern boundary of the Western Central Pacific (Ref. 11146).
西北太平洋: 只已知來自採自南中國海的 3件標本了。收集少於一個中西太平洋的程度西北分界的北側.(參考文獻 11146)

大小 / 重量 / 年龄

Maturity: L_m ? range ? - ? cm
Max length : 85.0 cm TL (female)

简单描述检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 0; 臀棘: 0. Light brown with distal parts and anterior margins of fins, snout, nostrils, and gills blackish brown in young, possibly uniform blackish brown in adults (Ref. 11146).
淡褐色且有末梢部的部份与鳍，吻，鼻孔与鳃的前缘暗褐色的当幼鱼时, 可能一致暗褐色当成鱼时.(参考文献 11146)

A poorly known deep-water bottom-dwelling catshark found on mud bottoms of the upper continental slopes (Ref. 11146). Oviparous (Ref. 50449).

一种少为人知的深海底栖猫鲨发现于大陆坡上层的泥底了。 (参考文献 11146) 卵生的.(参考文献 50449)

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

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).西北太平洋: 只已知來自採自南中國海的 3件標本了。收集少於一個中西太平洋的程度西北分界的北側.(參考文獻 11146)

主要参考文献 Upload your references | 参考文献 | 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)

世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)

最不相关 (LC) ; Date assessed: 27 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

无害处的

人类利用

渔业: 没有兴趣

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

营养阶层 (Ref. 69278): 4.0 ±0.5 se; based on size and trophs of closest relatives

回复力 (Ref. 120179): 低的, 最小族群倍增时间4.5 - 14 年 (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (54 of 100).

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