Thryssa rastrosa
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| Scientific name | ||||||||||||
| Thryssa rastrosa | ||||||||||||
| Roberts , 1978 |
Thryssa rastrosa is aspecies of fish fromthe anchovy family thatmainly lives in freshwater . It occurs exclusively in the area of the Fly river system in southern New Guinea .
features
The schooling fish reaches a standard length of up to 12 centimeters. The body is silver colored. The dorsal fins are spanned by 12–13, the anal fin by 33–36 and the pectoral fins by 13 rays . The number of keeled scales from the neck to the anus on the ventral side is 27–30. The number of gill spines of the lower gill arch is 55-61.
Distribution and way of life
Thryssa racing pink comes in south-central New Guinea before and is there in the Fly - Strickland -Flusssystem including Lake Murray endemic . The fish live in the murky channels of large rivers, in lakes and oxbow lakes in the lowlands, but have also been sighted in the upper reaches of the Fly (up to 860 km from the mouth upstream).
The fish filter their food out of the water, i. that is, they feed on plankton , such as copepods .
literature
- GR Allen, AW Storey, M. Yarrao: Fresh Water Fishes of the Fly River . Tabubil 2008, ISBN 978-0-646-49605-4 , p. 40 .
Web links
- Thryssa rastrosa on Fishbase.org (English)