Zingel asper
Encyclopedia
Zingel asper, the Apron, is a species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 of fish
Fish
Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...

 in the Percidae
Percidae
The Percidae are a family of perciform fish found in fresh and brackish waters of the Northern Hemisphere. The family contains about 200 species in ten genera...

 family that is at a high risk of becoming extinct.

Diet and habitat

The Zingel asper's diet consist of smaller fish which include Diptera
Fly
True flies are insects of the order Diptera . They possess a pair of wings on the mesothorax and a pair of halteres, derived from the hind wings, on the metathorax...

, Baetidae
Baetidae
Baetidae is a family of mayflies with about 900 described species distributed worldwide. These are among the smallest of mayflies, adults rarely exceeding 10 mm in length excluding the two long slender tails and sometimes much smaller, and members of the family are often referred to as small...

 and Hydropsychidae
Hydropsychidae
Hydropsychidae are a family-level taxon consisting of net-spinning caddisflies. Hydropsychids are common among much of the world's streams and a few species occupy the shorelines of freshwater lakes...

, and varies by season. Diptera is consumed primarily during the winter.

The Zingel asper can be found in the River Durance
Durance
The Durance is a major river in south-eastern France.Its source is in the south-western Alps, in Montgenèvre ski resort near Briançon and it flows south-west through the following départements and cities:* Hautes-Alpes: Briançon, Embrun.* Alpes-de-Haute-Provence: Sisteron, Manosque.* Vaucluse:...

 and River Beaume. The Zingel asper lives in habitats similar to that of the River jelly lionen, Lamprehuela
Cobitis calderoni
Cobitis calderoni is a species of ray-finned fish in the Cobitidae family.It is found in Portugal and Spain.Its natural habitat is rivers.It is threatened by habitat loss.-Source:* Crivelli, A.J. 2005. . Downloaded on 19 July 2007....

, and the Phoxinus phoxinus. It reaches its full maturity after one year, and its length ranges from 10-cm to 20-cm.

The fertility of a Zingel asper is related to its size.

External links

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