Coreobagrus ichikawai Okada & Kubota, 1957
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Coreobagrus ichikawai
Afbeelding van Watanabe, K.
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Afbeelding van Watanabe, K.
Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa
> Siluriformes (Catfishes) > Bagridae (Bagrid catfishes)
Etymology: Coreobagrus: Greek, kore, -es = pupil and also with themenaing of "maid" + mozarabic, bagre, taken from Greek, pagros = a fish (Dentex sp) (Ref. 45335).
Eponymy: Dr Atsuhiko Ichikawa (1904–1991) was a Japanese platyhelminthologist. [...] (Ref. 128868), visit book page.
Etymology: Coreobagrus: Greek, kore, -es = pupil and also with themenaing of "maid" + mozarabic, bagre, taken from Greek, pagros = a fish (Dentex sp) (Ref. 45335).
Eponymy: Dr Atsuhiko Ichikawa (1904–1991) was a Japanese platyhelminthologist. [...] (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie
; zoet water benthopelagisch. Temperate; 35°N - 34°N
Verspreiding Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri
Asia: endemic to the streams in the Mie Prefecture, Honshu Island, Japan.
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?, range 6 - ? cm
Max length : 10.8 cm SL mannelijk / geslacht onbekend; (Ref. 48378); max. gerapporteerde leeftijd: 4 Jaren (Ref. 48378)
Max length : 10.8 cm SL mannelijk / geslacht onbekend; (Ref. 48378); max. gerapporteerde leeftijd: 4 Jaren (Ref. 48378)
Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 1; Dorsale zachte stralen (totaal) : 6 - 7; Anale stekels: 0; Anale zachte stralen: 14 - 16. Resembles Pelteobagrus nudiceps in having a slightly notched posterior caudal fin margin, but distinguished by having a shorter body and fewer fin rays.
Body shape (shape guide): elongated; Cross section: circular.
Body shape (shape guide): elongated; Cross section: circular.
Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
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.
Hoofdreferentie
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Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628. (Ref. 58032)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Kwetsbaar (VU) (B1ab(i,ii,iii,iv,v)); Date assessed: 01 March 2018
CITES
Not Evaluated
Gevaar voor de mens
Harmless
Gebruik door de mens
FAO - Publication: search | FishSource |
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Trofische ecologie
Voedsel (prooien)
Dieetsamenstelling
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Voedselrantsoenen
Predatoren
Voedsel (prooien)
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Voedselconsumptie
Voedselrantsoenen
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Lengte-gewicht rel.
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Lengtefrequenties
Massaconversie
Rekrutering
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Lengte-lengte rel.
Lengtefrequenties
Massaconversie
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Menselijk gerelateerd
Aquacultuursystemen
Aquacultuurprofielen
Kweeklijnen
Ciguatera gevallen
Postzegels, munten, diversen.
Aquacultuursystemen
Aquacultuurprofielen
Kweeklijnen
Ciguatera gevallen
Postzegels, munten, diversen.
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AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Bekijk FishWatcher | CISTI | Catalog of Fishes: Genus, Soort(en) | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: ga naar, zoek | World Records Freshwater Fishing | Zoobank | Zoological Record
Schattingen op basis van modellen
|
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00871 (0.00415 - 0.01826), b=2.93 (2.76 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
|
Trofisch niveau (Ref. 69278) |
4.0 ±0.50 se; based on food items. |
| Generation time | 1.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
|
Weerstandsvermogen (Ref. 120179) |
Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (tm=2-3; tmax=4; K=0.5). |
|
Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (14 of 100). 🛈 |