Nothobranchius derhami Valdesalici & Amato, 2019
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drawing shows typical species in Nothobranchiidae.
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drawing shows typical species in Nothobranchiidae.
Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa
> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); derhami: The specific name epithet is given in honour of Patrick de Rham, Lausanne, Swiss, who first discovered the new species on the 7th of July 1985 in a grassy swamp situated near Ahero on the east side of the Nakuru to Kisumu road and for his contribution on observing in the field part of the life cycle of this species; a noun in genitive (Ref. 123202).
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); derhami: The specific name epithet is given in honour of Patrick de Rham, Lausanne, Swiss, who first discovered the new species on the 7th of July 1985 in a grassy swamp situated near Ahero on the east side of the Nakuru to Kisumu road and for his contribution on observing in the field part of the life cycle of this species; a noun in genitive (Ref. 123202).
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet Ökologie
; süßwasser benthopelagisch; pH range: 7.6 - 7.6. Tropical; 25°C - 31°C (Ref. 123202)
Verbreitung Territorien | FAO Gebiete | Ökosysteme | Vorkommen | Punkt Karte | Einführungen | Faunafri
Africa: seasonal pools from Nyando River system, Lake Victoria basin, in Kenya (Ref. 123202).
Größe / Gewicht / Alter
Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt) : 0; Rückenflossenweichstrahlen (insgesamt) : 15 - 17; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 15 - 17; Wirbelzahl: 27. Diagnosis: Nothobranchius derhami belongs to the N. ugandensis species group presenting the following combination of characters in males: body colouration light blue with red to red-brown scale margins; frontal part of headred-brown and throat light blue or red, caudal fin uniform red; anal fin light blue or yellow with red-brown spotted pattern (Ref. 123150). It differs from all members of the N. ugandensis species group by a dorsal fin with a slender light blue subdistal band and a narrow black distal band; an anal fin with broad subdistal zone cream to yellow, with narrow red-brown to black distal band; and a smaller suborbital depth, 16-18% of head length vs. 19-28% (Ref. 123150). Males from Nothobranchius derhami are distinguished from the similar N. ugandensis by lower jaw light blue vs. lower jaw red in red morph or grey brown in yellow morph of N. ugandensis, upper lip and snout red vs. grey brown on yellow morph, the body sides with red irregular vertical stripes vs. without red pattern in yellow morph, by dorsal fin with subdistal blue stripe and broad black rim vs. without defined subdistal stripe and rim, by anal fin with spots vs. without spots or if present reduced to a few dots, and caudal fin plain red vs. yellowish with a black marginal stripe and with or without dark dots in the yellow morph, red anteriorly, orange posteriorly and with a black margin in some of the red morph (Ref. 123202). Males of N. derhami are distinguished from the congener, nearest in distribution, N. robustus, by light blue with posterior margin of the scale red creating a banded pattern on flank vs. intense plain red colouration on whole flank, or at least on posterior half portion, by light blue proximal portion with a pattern of red spots on dorsal, anal and pelvic fin vs. fins completely red (Ref. 123202).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Found in seasonal pools less than 1 m deep and with aquatic vegetation; the water was light clay grey and turbid, with a pH of 7.6 and temperature ranging from 25-31°C depending on the position in the water column (Ref. 123202).
Lebenszyklus und Paarungsverhalten Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Hauptreferenz
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Valdesalici, S. and G. Amato, 2019. Nothobranchius derhami (Cyprinodontiformes: Nothobranchiidae), a new species of seasonal killifish from western Kenya. Aqua, Int. J. Ichthyol., 25(3):111-124. (Ref. 123202)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
stark gefährdet (EN) (B1ab(iii)+2ab(iii)); Date assessed: 18 May 2020
CITES
Not Evaluated
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
FAO - Publication: search | FishSource |
Mehr Information
Trophische Ökologie
Lebensmittel (Beutetiere)
Nahrungszusammensetzung
Nahrungsaufnahme
Lebensmittelrationen
Räuber
Lebensmittel (Beutetiere)
Nahrungszusammensetzung
Nahrungsaufnahme
Lebensmittelrationen
Räuber
Populationsdynamik
Wachstumsparameter
Max. Alter/Größen
Länge-Gewicht-Rel.
Länge-Länge-Verhältnis.
Längenhäufigkeiten
Massenkonvertierung
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Wachstumsparameter
Max. Alter/Größen
Länge-Gewicht-Rel.
Länge-Länge-Verhältnis.
Längenhäufigkeiten
Massenkonvertierung
Rekrutierung
Dichte
Lebenszyklus
Fortpflanzung
Geschlechtsreife
Reifung/Kiemen rel.
Fruchtbarkeit
Ablaichen
Laichaggregationen
Eier
Eientwicklung
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Larven Pop.Dyn.
Fortpflanzung
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Reifung/Kiemen rel.
Fruchtbarkeit
Ablaichen
Laichaggregationen
Eier
Eientwicklung
Larven
Larven Pop.Dyn.
Anatomie
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Gehirn
Otolith
Kiemenoberfläche
Gehirn
Otolith
Physiologie
Körperliche Zusammensetzung
Nährstoffe
Sauerstoffverbrauch
Schwimmart
Schwimmgeschwindigkeit
Visuelle Pigmente
Fischgeräusche
Krankheiten und Parasiten
Toxizität (LC50s)
Körperliche Zusammensetzung
Nährstoffe
Sauerstoffverbrauch
Schwimmart
Schwimmgeschwindigkeit
Visuelle Pigmente
Fischgeräusche
Krankheiten und Parasiten
Toxizität (LC50s)
Genetik
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Genetik
Heterozygotie
Vererbbarkeit
Genetische Vielfalt
Genom
Genetik
Heterozygotie
Vererbbarkeit
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Menschenbezogen
Aquakultur-Systeme
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Zuchtlinien
Ciguatera-Fälle
Briefmarken, Münzen, Verschiedenes.
Aquakultur-Systeme
Aquakultur Profile
Zuchtlinien
Ciguatera-Fälle
Briefmarken, Münzen, Verschiedenes.
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Internet Quellen
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | 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: Gehe zu, Suchen | World Records Freshwater Fishing | Zoobank | Zoologischer Rekord
Schätzungen auf der Grundlage von Modellen
|
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00603 (0.00251 - 0.01446), b=3.13 (2.93 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
|
Trophische Ebene (Ref. 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
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Anfälligkeit der Fischerei (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |