Spotted harlequin
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Spotted harlequin ( Danio nigrofasciatus ) |
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| Danio nigrofasciatus | ||||||||||||
| ( Day , 1870) |
The spotted barb ( Danio nigrofasciatus (= black banded), syn .: Brachydanio nigrofasciatus ) is a small carp fish that occurs in rivers and small, stagnant bodies of water in northern Burma .
features
The spotted harlequin has an elongated but not quite as slender body as the other species of the genus and reaches a maximum length of 4 cm. Females are more dull in color than males, are plump and grow slightly larger.
The basic color of the fish is olive or light brown. A gold-colored longitudinal line, which is lined with blue at the top and bottom, begins behind the gill cover and extends to the central caudal fin rays. The spotted harlequin is spotted blue below the line (name). The belly is yellow-white. The fins are yellowish to light brown, dorsal and anal fin with a light border, the anal fin with short blue lines. The mouth is slightly above. It is flanked by two pairs of barbels .
- Fin formula : dorsal 2/7, anal 2/11, pectoral 15, ventral 7.
- Scale formula : mLR 28–32.
Way of life
Spotted barbels live as schooling fish in small flowing and standing waters. They are common, mostly close to the surface, feeding on insects that have fallen on the surface and zooplankton.
Aquaristics
The spotted danio is not held as frequently as the zebrafish and the Pearl Danio . He needs more warmth than his relatives.
literature
- Hans A. Baensch , Rüdiger Riehl : Aquariums Atlas, Volume 1 . Mergus Verlag, 1997, ISBN 3-88244-101-1 .
- Günther Sterba (Ed.), Gert Brückner: Encyclopedia of Aquaristics and Special Ichthyology. Neumann-Neudamm, Melsungen u. a. 1978, ISBN 3-7888-0252-9 .
- Günther Sterba: The world's freshwater fish. 2nd Edition. Urania, Leipzig / Jena / Berlin 1990, ISBN 3-332-00109-4 .
- Axel Zarske: Brachydanio nigrofasciatus (Day, 1869). In: Claus Schaefer, Torsten Schröer (Hrsg.): The large lexicon of aquaristics. Eugen Ulmer, Stuttgart 2004, ISBN 3-8001-7497-9 , p. 166 f.
Web links
- Spotted harlequin on Fishbase.org (English)
- Danio nigrofasciatus inthe IUCN Red List of Threatened Species 2013.2. Listed by: Vidthayanon, C., 2011. Retrieved December 17, 2013.