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Cypriniformes (Carps) >
Danionidae (Danios) > Chedrinae
Etymology: Opsaridium: Greek, opsarion, -ou = a little portion fish (Ref. 45335).
Eponymy: Denis (d: 1949) and Sharon Tweddle are husband and wife and together were honoured in the name of the dwarf sanjika for their contributions (e. [...] (Ref. 128868), visit book page.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
; süßwasser demersal. Tropical
Africa: western affluent perennial rivers of Lake Malawi and tributaries of Shire River, lower Zambezi (Ref. 26673, 52193).
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 11.0 cm SL Männchen/unbestimmt; (Ref. 52193)
Rückenflossenstacheln (insgesamt) : 0; Rückenflossenweichstrahlen (insgesamt) : 10 - 11; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 16.
Found in swift-flowing streams in rocky reaches over clean sand (Ref. 52193).; prefers clear, fast flowing waters (Ref. 26673). It feeds on insects and other invertebrates in the drift (Ref. 52193). Breeds in summer (Ref. 52193).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Skelton, P.H., 1996. A review of Opsaridium zambezense (Pisces: Cyprinidae) from southern Africa with description of a new species from Malawi. Ichthyol. Explor. Freshwat. 7(1):59-84. (Ref. 26673)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00589 (0.00277 - 0.01251), b=3.00 (2.82 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophische Ebene (Ref. 69278) |
3.3 ±0.4 se; based on size and trophs of closest relatives |
Widerstandsfähigkeit (Ref. 120179) |
hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.). |
Anfälligkeit der Fischerei (Ref. 59153) |
Low to moderate vulnerability (26 of 100). 🛈 |
Nährstoffe (Ref. 124155) |
Calcium = 500 [302, 1,184] mg/100g; Iron = 3.03 [1.80, 5.47] mg/100g; Protein = 17.5 [16.6, 18.5] %; Omega3 = 0.606 [0.244, 1.610] g/100g; Selenium = 48.2 [19.5, 118.7] μg/100g; VitaminA = 126 [41, 391] μg/100g; Zinc = 2.46 [1.55, 3.81] mg/100g (wet weight); |