Brown stripe goby
| Brown stripe goby | ||||||||||||
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Brown striped goby ( Amblygobius phalaena ) |
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| Scientific name | ||||||||||||
| Amblygobius phalaena | ||||||||||||
| ( Valenciennes , 1837) |
The Braunstreifen- or Augengrundel ( Amblygobius phalaena ) lives on sand and gravel surfaces in lagoons , reef roofs and inner reefs of the central Indopazifik in depths of 2 to 20 meters.
Distribution area
Its range extends from the Philippines north to the Ryūkyū Islands , includes all of Micronesia and goes south to South Australia, Lord Howe Island and Rapa Iti . In the western Indian Ocean it is replaced by Amblygobius semicinctus , in the Red Sea by Amblygobius albimaculatus .
features
Brown stripe gobies grow to a length of 15 centimeters. There are no externally visible gender differences. A not clearly visible eye-spot is located in the first dorsal fin , at the end of the often brightly colored caudal fin there are one, two or more other eye-spots. The pectoral fins are yellow.
Fin formula : dorsal VII / 14, anal I / 14
Way of life
Brown-striped gobies usually live in pairs in living tubes, which the male animal digs into the sand or rubble, usually under a stone. A couple maintains several caves within the area, which serve as refuge and in which spawning takes place. A living tube can be 30 centimeters long, reach a diameter of 6 centimeters and reach 19 centimeters deep into the ground.
The fish spawn three days before the full or new moon. The clutch of up to 40,000 eggs is glued to the ceiling of the cave and is guarded by the male for three to four days until the larvae hatch. The male spends about 40 percent of the day looking after the brood. During this time, the female tends to stay outside the cave and use her fins to fan fresh water into the living tube. After hatching of the pelagic larvae, the instinct to care for the brood disappears.
Brown-striped gobies feed by ingesting sand with their mouths, chewing it through, sifting out small animals and unicellular algae (including cyanobacteria and diatoms ) and then expelling the chewed sand through the gill slits. They also eat green thread algae, which they tear off the substrate, chew and then spit out again until a ball has formed, which is then swallowed.
Aquaristics
Brown-streaked gobies are among the most commonly imported gobies for keeping in saltwater aquariums . Although they are not so attractively drawn in terms of color, they are popular as ornamental fish, as they loosen up the soil and remove the often-forming deposits of red cyanobacteria and brown diatoms . They have not yet been bred. All brown striped gobies sold in stores are caught in the wild.
literature
- Hans A. Baensch , Robert A. Patzner: Mergus Sea Water Atlas Volume 1 , Mergus-Verlag, Melle 1997, ISBN 3-88244-110-0
- Ewald Lieske, Robert F. Myers: Coral fish of the world . 1994, year publisher, ISBN 3-86132-112-2
- Dieter Eichler, Robert F. Myers: Korallenfische Indopazifik , Jahr-Verlag GmbH & Co., 1997, ISBN 3-86132-225-0
- Joachim Freshness: Wellness for the substrate, the genus Amblygobius . In Der MeerwasserAquarianer, specialist magazine for seawater aquaristics, 1/2008, Rüdiger Latka Verlag, ISSN 1432-1505
- SA Fosså, & AJ Nilsen: Coral reef aquarium. Volume 3, Birgit Schmettkamp Verlag, ISBN 3-928819-14-3
Web links
- Brown-striped goby on Fishbase.org (English)