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Nekogigi

Coreobagrus ichikawai Okada & Kubota 1957

Morphology

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Dorsal spines (total): 1; Dorsal soft rays (total): 6 - 7; Analspines: 0; Analsoft rays: 14 - 16
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Recorder
Rodolfo B. Reyes
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Life Cycle

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Observed from an aquarium, mature males swam around the shelter before spawning, sometimes digging the substrate under the shelter by beating their tail. Although males did not show features of parental care such as fanning or egg-cleaning in an aquarium condition, they continued to tend the shelter and attack other fish introduced to the aquarium.Once a ripe female was introduced to a male aquarium, the male starts to pursue the female, nudging its belly. The female is then led to or visited voluntarily the male shelter. Subsequently, either in the shelter (usually) or outside, the male wraps its body around the head and abdomen of the female, with the female's head against the male's caudal peduncle. The pair remain in this position for 5.2-9.2 seconds (6.1-7.8 seconds on the average for each pair). The female, firmly held by the male's pectoral, pelvic, anal and caudal fins, slowly beats its caudal fin during the embrace. The embrace is terminated by spawning, with the female often turning its abdomen upwards when releasing eggs. Neither conspicuous ejaculatory behavior by the male nor turbidity caused by the semen was observed. Immediately after spawning, the female stirs the eggs by quickly swinging its body, leaves the spawning site afterwards or is chased away by the male.After several minutes, the female either returns voluntarily or is led back by the male to the shelter, repeating the same behavioral pattern all over again. The mean interval between successive spawnings ranged from 1.7-7.0 mins.It was also observed that immediately following spawning, all males were observed to forage for eggs.
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Diagnostic Description

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Resembles Pelteobagrus nudiceps in having a slightly notched posterior caudal fin margin, but distinguished by having a shorter body and fewer fin rays.
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Biology

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Oviparous (Ref. 205). Eggs are guarded by the male (Ref. 45232).
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Coreobagrus ichikawai ( Catalan; Valencian )

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Coreobagrus ichikawai és una espècie de peix de la família dels bàgrids i de l'ordre dels siluriformes.

Morfologia

Reproducció

És ovípar[7] i els ous són protegits pel mascle.[8][9]

Hàbitat

És un peix d'aigua dolça i de clima temperat.[5]

Distribució geogràfica

Es troba a Àsia: Honshu (Japó).[5][10]

Referències

  1. Mori, T., 1936. Descriptions of one new genus and three new species of Siluroidea from Chosen. Dobutsugaku Zasshi = Zoological Magazine Tokyo v. 48 (núms. 8-10): 671-675, Pl. 24.
  2. BioLib (anglès)
  3. Okada, Y. & Kubota, S. S., 1957. Description of a new fresh-water catfish, Coreobagrus ichikawai, with an emendation of the genus Coreobagrus Mori. Japanese Journal of Ichthyology v. 5 (núms. 3-6): 143-145.
  4. «Coreobagrus ichikawai». Catalogue of Life. (anglès) (anglès)
  5. 5,0 5,1 5,2 FishBase (anglès)
  6. Watanabe, K., 1994. Growth, maturity and population structure of the bagrid catfish, Psedobagrus ichikawai, in the Tagiri river, Mie Prefecture, Japan. Jap. J. Ichthyol. 41(1):15-22.
  7. Breder, C.M. i D.E. Rosen, 1966. Modes of reproduction in fishes. T.F.H. Publications, Neptune City (Estats Units). 941 p.
  8. Ochi, H., A. Rossiter i Y. Yanagisawa, 2002. Paternal mouthbrooding bagrid catfishes in Lake Tanganyika. Ichthyol. Res. 49:270-273.
  9. Watanabe, K., 1994. Mating behaviour and larval development of Pseudobagrus ichikawai (Siluriformes: Bagridae). Jap. J. Ichthyol. 41(3):243-251.
  10. Masuda, H., K. Amaoka, C. Araga, T. Uyeno i T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tòquio, Japó. 437 p.


Bibliografia

  • Anònim, 2002. Freshwater fish collection database of the National Science Museum. National Science Museum, 3-23-1 Hyakunin-cho, Shinjuku-ku, Tòquio 169-0073, Japó.
  • Burgess, W.E. 1989. An atlas of freshwater and marine catfishes. A preliminary survey of the Siluriformes. T.F.H. Publications, Inc., Neptune City (Estats Units). 784 p.
  • Eschmeyer, William N.: Genera of Recent Fishes. California Academy of Sciences. San Francisco, Califòrnia, Estats Units. iii + 697. ISBN 0-940228-23-8 (1990).
  • Eschmeyer, William N., ed. 1998. Catalog of Fishes. Special Publication of the Center for Biodiversity Research and Information, núm. 1, vol. 1-3. California Academy of Sciences. San Francisco, Califòrnia, Estats Units. 2905. ISBN 0-940228-47-5.
  • Ferraris, Carl J.: Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa, 1418. 8 de març del 2007. ISBN 978-1-86977-058-7. PDF (anglès)
  • Helfman, G., B. Collette i D. Facey: The diversity of fishes. Blackwell Science, Malden, Massachusetts (Estats Units), 1997.
  • Magtoon, W. i R. Arai, 1988. Karyotypes of Bagrid Catfishes, Mystus wyckii and Bagroides macracanthus, from Thailand Bull. Nat. Sci. Mus., Tokyo, Ser. A. 14(2):113-117.
  • Moyle, P. i J. Cech.: Fishes: An Introduction to Ichthyology, 4a edició, Upper Saddle River, Nova Jersey, Estats Units: Prentice-Hall. Any 2000.
  • Nelson, J.S. 2006: Fishes of the world. Quarta edició. John Wiley & Sons, Inc. Hoboken, Nova Jersey, Estats Units. 601 p.
  • Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea i W.B. Scott, 1991. World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. Am. Fish. Soc. Spec. Publ. (21):243 p.
  • Ueno, K., 1985. Karyotypes of bagrid catfishes from Japan and Korean. Kaiôkagaku. 17:102-108. Tòquio, Japó.
  • Vasil'ev, V.P., 1980. Chromosome numbers in fish-like vertebrates and fish. J. Ichthyol. 20(3):1-38.
  • Watanabe, K., 1998. Meristic variation in the endangered bagrid catfish, Pseudobagrus ichikawai. Ichthyol. Res. 45(1):99-104.
  • Wheeler, A.: The World Encyclopedia of Fishes, 2a edició, Londres: Macdonald. Any 1985.


Enllaços externs

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Coreobagrus ichikawai: Brief Summary ( Catalan; Valencian )

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Coreobagrus ichikawai és una espècie de peix de la família dels bàgrids i de l'ordre dels siluriformes.

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Nekogigi

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Nekogigi (Coreobagrus ichikawai) is a species of bagrid catfish endemic to Japan where it is only found in Mie Prefecture on Honshu. It occurs in streams and can grow to a length of 10.8 cm.

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Nekogigi: Brief Summary

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Nekogigi (Coreobagrus ichikawai) is a species of bagrid catfish endemic to Japan where it is only found in Mie Prefecture on Honshu. It occurs in streams and can grow to a length of 10.8 cm.

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Coreobagrus ichikawai ( Spanish; Castilian )

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Coreobagrus ichikawai es una especie de peces de la familia Bagridae en el orden de los Siluriformes.

Morfología

• Los machos pueden llegar alcanzar los 10,8 cm de longitud total.[1][2]

Reproducción

Es ovíparo.

Hábitat

Es un pez de agua dulce y de clima templado.

Distribución geográfica

Se encuentran en Asia: Honshu (Japón).

Referencias

  1. FishBase (en inglés)
  2. Watanabe, K., 1994. Growth, maturity and population structure of the bagrid catfish, Psedobagrus ichikawai, in the Tagiri river, Mie Prefecture, Japan. Jap. J. Ichthyol. 41(1):15-22.

Bibliografía

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Coreobagrus ichikawai: Brief Summary ( Spanish; Castilian )

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Coreobagrus ichikawai es una especie de peces de la familia Bagridae en el orden de los Siluriformes.

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Coreobagrus ichikawai ( Basque )

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Coreobagrus ichikawai Coreobagrus generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Bagridae familian.

Banaketa

Erreferentziak

  1. Froese, Rainer & Pauly, Daniel ed. (2006), Coreobagrus ichikawai FishBase webgunean. 2006ko apirilaren bertsioa.

Ikus, gainera

(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});
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Coreobagrus ichikawai: Brief Summary ( Basque )

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Coreobagrus ichikawai Coreobagrus generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Bagridae familian.

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Coreobagrus ichikawai ( Dutch; Flemish )

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Vissen

Coreobagrus ichikawai is een straalvinnige vissensoort uit de familie van de stekelmeervallen (Bagridae).[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1957 door Okada & Kubota.

Bronnen, noten en/of referenties
  1. (en) Coreobagrus ichikawai. FishBase. Ed. Ranier Froese and Daniel Pauly. 02 2013 version. N.p.: FishBase, 2013.
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Pseudobagrus ichikawai ( Portuguese )

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Pseudobagrus ichikawai é uma espécie de peixe da família Bagridae.

É endémica de Japão.

Referências

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Pseudobagrus ichikawai: Brief Summary ( Portuguese )

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Pseudobagrus ichikawai é uma espécie de peixe da família Bagridae.

É endémica de Japão.

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Coreobagrus ichikawai ( Vietnamese )

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Nekogigi (danh pháp khoa học: Coreobagrus ichikawai) là một loài thuộc họ Bagridae. Đây là loài đặc hữu của Nhật Bản - nơi mà loài này chỉ được tìm thấy ở tỉnh Mie trên đảo Honshu. Loài cá này có ở các con suối và chiều dài cơ thể có thể đạt đến 10,8 cm.

Chú thích

Tham khảo


Hình tượng sơ khai Bài viết chủ đề bộ Cá da trơn này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
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Coreobagrus ichikawai: Brief Summary ( Vietnamese )

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Cá Nekogigi (danh pháp khoa học: Coreobagrus ichikawai) là một loài thuộc họ Bagridae. Đây là loài đặc hữu của Nhật Bản - nơi mà loài này chỉ được tìm thấy ở tỉnh Mie trên đảo Honshu. Loài cá này có ở các con suối và chiều dài cơ thể có thể đạt đến 10,8 cm.

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石川氏朝鮮鱨 ( Chinese )

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二名法 Coreobagrus ichikawai
Okada & Kubota, 1957

石川氏朝鮮鱨,為輻鰭魚綱鯰形目鱨科的其中一,為溫帶淡水魚類,被IUCN列為瀕危保育類動物,分布於亞洲日本三重縣淡水流域,為特有種,體長可達10.8公分,棲息在溪流底層水域,生活習性不明。

参考文献

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石川氏朝鮮鱨: Brief Summary ( Chinese )

provided by wikipedia 中文维基百科

石川氏朝鮮鱨,為輻鰭魚綱鯰形目鱨科的其中一,為溫帶淡水魚類,被IUCN列為瀕危保育類動物,分布於亞洲日本三重縣淡水流域,為特有種,體長可達10.8公分,棲息在溪流底層水域,生活習性不明。

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ネコギギ ( Japanese )

provided by wikipedia 日本語
ネコギギ ネコギギ
ネコギギ Pseudobagrus ichikawai
保全状況評価[1] VULNERABLE
(IUCN Red List Ver.2.3 (1994))
Status iucn2.3 VU.svg 分類 : 動物界 Animalia : 脊索動物門 Chordata 亜門 : 脊椎動物亜門 Vertebrata : 条鰭綱 Actinopterygii : ナマズ目 Siluriformes : ギギ科 Bagridae : Pseudobagrus : ネコギギ P. ichikawai 学名 Pseudobagrus ichikawai
(Okada & Kubota, 1957) シノニム

Coreobagrus ichikawai
Okada & Kubota, 1957

和名 ネコギギ 英名 Stumpy bagrid catfish
Stumpy bullhead

ネコギギPseudobagrus ichikawai)は、条鰭綱ナマズ目ギギ科に分類される魚類。


分布[編集]

日本愛知県岐阜県三重県伊勢湾三河湾流入河川)固有種[2][3][4]

形態[編集]

標準体長オス13センチメートル、メス10センチメートル[3]。標準体長/体高の割合が約25%と、体形はやや太くて短い[3]。体色は黒褐色で、黄褐色の斑紋が入る[3]

尻鰭鰭条数は16-19[3]。尾鰭の後端にわずかに切れこみが入る[3]。幼魚は明色斑が明瞭だが、成長に伴い不明瞭になる[3]

生態[編集]

河川の上流、中流域に生息する[2][3]。流れの緩やかな淵や平瀬を好み、定住性が強い[4]夜行性で、昼間は岩の隙間などで休む[2][3][4]

食性は動物食で、昆虫(カゲロウ目ハエ目)の幼虫などを食べる[3][4]

繁殖形態は卵生。6 - 7月に石の下などに、100-500個の卵を産むと考えられている[3]。飼育下の観察例ではオスの隠れ家にメスが産卵し、オスは卵を保護する[3]。卵は21 - 24℃の水温下で、60 - 80時間で孵化した例がある[3]。仔魚は卵から孵化してから4日で卵黄が吸収され、採食をするようになる[3]。生後2年で性成熟するが、生後3年から繁殖する個体が多い[4]

人間との関係[編集]

ダム建設や河川改修、台風による出水およびその災害復旧工事などによる生息地の破壊、ゴルフ場や工業排水、農業排水、家庭排水などによる水質汚染などにより生息数は激減している[2][3][4]。後述のとおり天然記念物に指定されているが密猟や、人為的に移入されたアユからの感染症、ギギとの競合、コイやブラックバスなどによる捕食も懸念されている[4]。13水系で生息が確認されていたが、1990年代以降の調査では11水系のみで生息が確認され五十鈴川水系と朝明川水系では生息が確認されていない[3][4]。 日本では1977年に種として[2]2011年に三重県の中村川が「中村川ネコギギ生息地」として国の天然記念物に指定されている[4][5]。 三重県では1988年から分布、生態調査が行われ、2005年に保護管理指針を策定した[4]。絶滅の危険性が高い員弁川水系の個体群を飼育下繁殖させ、再導入する試みが進められている[4]。岐阜県長良川水系では1990年代以降に魚巣ブロックの設置や寄せ石などの保全対策、2010 - 2011年に行われた災害復旧工事では改良された護岸ブロックの設置や工法変更などの対策が行われている[4]

絶滅危惧IB類 (EN)環境省レッドリスト[3]

Status jenv EN.svg

参考文献[編集]

[ヘルプ]
  1. ^ Kottelat, M. 1996. Pseudobagrus ichikawai. The IUCN Red List of Threatened Species. Version 2014.3. <http://www.iucnredlist.org>. Downloaded on 20 May 2015
  2. ^ a b c d e 加藤陸奥雄、沼田眞、渡辺景隆、畑正憲監修 『日本の天然記念物』、講談社、1995年、687、689頁
  3. ^ a b c d e f g h i j k l m n o p q 小早川みどり 「ネコギギ」『改訂・日本の絶滅のおそれのある野生生物 -レッドデータブック- 4 汽水・淡水魚類』環境庁自然環境局野生生物課編、財団法人自然環境研究センター、2003年。
  4. ^ a b c d e f g h i j k l 渡辺勝敏、森誠一「ネコギギ:積極的保全に向けたアプローチ 」『魚類学雑誌』第59巻 2号、日本魚類学会、2012年、168-171頁。
  5. ^ 中村川ネコギギ生息地 文化庁

関連項目[編集]

外部リンク[編集]

執筆の途中です この項目は、魚類に関連した書きかけの項目です。この項目を加筆・訂正などしてくださる協力者を求めていますPortal:生き物と自然/プロジェクト:生物)。
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ネコギギ: Brief Summary ( Japanese )

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ネコギギ(Pseudobagrus ichikawai)は、条鰭綱ナマズ目ギギ科に分類される魚類。


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