Attersee-Reinanke
| Attersee-Reinanke | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Coregonus atterensis | ||||||||||||
| Kottelat , 1997 |
The Attersee Reinanke ( Coregonus atterensis ) is a freshwater fish from the subfamily Coregoninae .
features
Like most other whitefish , the Attersee-Reinanke has a herring-like shape and an adipose fin . It also has a large number of silvery round scales and reaches a maximum length of 40 cm.
distribution
The Attersee-Reinanke occurs endemically in the Attersee in Austria, in the Millstätter See and in the Ossiacher See . It is questionable whether the population in Mondsee is also C. atterensis . It is possible that these were introduced into the Mondsee from the Attersee at the beginning of the 20th century. The fact that the spawning season in Mondsee takes place a month earlier than that in Attersee adds to the doubts.
Way of life and reproduction
The Attersee-Reinanke lives pelagic and does not usually stay more than 30 m below the water surface. It spawns in the Attersee from February to March at a depth of 20–40 m, in the Mondsee from December to January near the coast. The spawn sinks to the bottom. The Reinanken in Mondsee reach an age of up to six years. They prefer to feed on zooplankton , but also eat small amounts of invertebrates living on the ground. The specimens in the Attersee are usually sexually mature at four, those in the Mondsee at three.
Endangerment and Use
Attersee-Reinanke is listed as "Vulnerable (VU)" on the IUCN Red List . This results from their small area of distribution alone. In addition, the additionally introduced species of the genus Coregonus are bothering her, as they are responsible on the one hand for competitive pressure and on the other hand for hybrid formation . The Attersee-Reinanke is valued as a food fish .
Web links
- Attersee-Reinanke on Fishbase.org (English)