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Dichichthys melanobranchus Chan, 1966

Blackgill catshark
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Dichichthys melanobranchus
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板鰓亜鋼(サメとエイ類) (sharks and rays) > 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 生態学

海 深海魚; 深さの範囲 540 - 810 m (Ref. 244). Deep-water; 21°N - 18°N

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | 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).

サイズ / 重さ / 年齢

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

簡単な記述 検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 0; 肛門の骨: 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).

生物学     用語集 (例 epibenthic)

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

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

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のレッドリストの状況は (Ref. 130435: Version 2024-2)

  軽度懸念 (LC) ; Date assessed: 27 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

水産業: 興味がない
FAO - Publication: search | FishSource |

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インターネットの情報源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: 部類, 種 | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: ゲノム, ヌクレオチド | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | 生命の木 | Wikipedia: 行く, 検索する | World Records Freshwater Fishing | Zoobank | 動物に関する記録

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).
栄養段階 (Ref. 69278):  4.0   ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  低い, ４．５年～１４年の倍増期間の最小個体群 (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (54 of 100).