Dwarf desert goby
| Dwarf desert goby | ||||||||||||
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male pygmy goby ( Chlamydogobius ranunculus ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Chlamydogobius ranunculus | ||||||||||||
| ( Larson , 1995) |
The Zwergwüstengrundel ( chlamydogobius ranunculus ) is a nearly four centimeters long fish from the family of Oxudercidae within the Grundelartigen (Gobiiformes). She lives in the north of Australia .
features
Dwarf desert gobies have the typical elongated goby shape with a round cross section, a beefy head and a large mouth. They show sexual dimorphism : the male animals have a blue-gray basic color, the back is darker in color. The first dorsal fin has a broad yellow stripe in the upper third. The second dorsal fin and the anal fin are bluish at the base, have a black stripe in the middle and a wide white border. The caudal fin is greyish with indistinct transverse stripes. The females are more inconspicuous, mostly brownish in color. The dwarf desert gobies usually differ from the other desert gobies of the genus Chlamydogobius by an even number of fin rays in the second dorsal fin and the anal fin.
Distribution and way of life
The pygmy desert gobies are common in coastal areas between the Adelaide River (Northern Territory) and Townsville in Queensland. The fish live in muddy streams, which can also have a low salt content (0 to 9 percent of seawater). Artificial habitats such as concrete drains or buffalo basins are also inhabited.
From aquarium observations it is known that the females of the dwarf desert gobies lay around 30 eggs, which hatch after 9 days at a water temperature of 25 ° C. The brood is guarded by the male until it hatches. As omnivores, dwarf desert gobies feed on insects, their larvae, small crustaceans, detritus and fine algae. The lifespan is typically only one year.
Web links
- Dwarf desert goby on Fishbase.org (English)
swell
- Helen K. Larson : A Review of the Australian endemic gobiid genus Chlamydogobius, with description of five new species . In: The Beagle Records of the Northern Territory Museum of the Arts and Sciences . tape 12 , 1995, p. 19-51 .
- G. Allen, S. Midgley, M. Allen: Field Guide to the Freshwater Fishes of Australia . 2nd Edition. Western Australian Museum, Perth 2003, ISBN 0-7307-5486-3 .