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Galeus eastmani (Jordan & Snyder, 1904)

Gecko catshark
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Native range | All suitable habitat | Point map | Year 2050
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Galeus eastmani   AquaMaps   Data sources: GBIF OBIS
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Galeus eastmani
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Viet Nam country information

Common names: Cá Nhám đuôi gai
Occurrence: questionable
Salinity: marine
Abundance: scarce (very unlikely) | Ref: Nguyen, H.P. and H.L. Tran, 1994
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Outside distributional range (Ref. 127969). Reported from the Gulf of Tonkin (Ref. 9705). Possibly occurring in Viet Nam (Ref. 11146). Also Ref. 244.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/vm.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Ebert, D.A., S. Fowler and M. Dando, 2021
National Database:

Common names from other countries

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

板鰓亜鋼(サメとエイ類) (sharks and rays) > Carcharhiniformes (Ground sharks) > Pentanchidae (Deepwater catsharks)
Etymology: Galeus: galeos, a small shark or dogfish according to Aristotle and others. (See ETYFish);  eastmani: Patronym not identified, probably in honor of American geologist and paleontologist Charles Rochester Eastman (1868-1918), a specialist in fossil fishes. (See ETYFish).
  More on authors: Jordan & Snyder.

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

深海魚.   Deep-water; 34°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

Northwestern Pacific: Japan to Taiwan (Ref. 127969). Possibly Vietnam and Malaysia.

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm 36.5, range 36 - 37 cm
Max length : 40.0 cm TL オス/雌雄の選別がない; (Ref. 11146)

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. Obscure saddle markings on body and precaudal tail, and with dark markings on the terminal and hypural caudal-fin lobes (Ref. 11146).

生物学     用語集 (例 epibenthic)

A little-known, but very common shark, found in deep water near the bottom (Ref. 11146). Maximum length of at least 40 cm TL, probably reaching 50 cm (Ref. 11146).

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

Oviparous, with a single egg laid per oviduct (Ref. 244). 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)

  軽度懸念 (LC) ; Date assessed: 29 August 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless




Human uses

水産業: 少数商業の
FAO(Publication : search) | FishSource |

より多くの情報

Trophic ecology
食品種目概要について
Diet compositions
Food consumptions
Food rations
捕食動物
Ecology
生態学
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
体長組成
Mass conversions
Recruitments
Abundances
Life cycle
繁殖
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
幼生
幼生の動力
Anatomy
Gill areas

Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
水泳形態
Swimming speeds
Visual pigment(s)
魚の音
Diseases / Parasites
Toxicities (LC50s)
Genetics
遺伝子の
Electrophoreses
Heritabilities
Human related
Aquaculture systems
水産養殖の紹介
緊張
Ciguatera cases
Stamps, coins, misc.
Outreach
協力者
References
参考文献

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インターネットの情報源

Estimates based on models

Preferred temperature (Ref. 115969): 2.6 - 5.8, mean 3.8 (based on 706 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00176 - 0.00714), b=3.09 (2.91 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  3.9   ±0.2 se; based on diet studies.
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):  Low to moderate vulnerability (30 of 100).
価格帯 (Ref. 80766):   Low.