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Zingel asper
Zingel asper, also known as the Rhone streber, is a species of freshwater ray-finned fish in the family Percidae that is at a high risk of becoming extinct due to habitat destruction and pollution. It is endemic to the rivers Durance and Beaume in the Rhône basin in France and Switzerland.
From the article Zingel asper on Wikipedia (CC BY-SA), quoted section by section
Range & habitat
The asper's diet consists of small insects which include flies (Diptera), mayflies (Baetidae), and caddisflies (Hydropsychidae), and varies by season, with flies consumed primarily during the winter. Zingel asper can be found in the rivers Durance and Beaume. Zingel asper lives in habitats similar to that of the loach, Cobitis calderoni, and the common minnow (Phoxinus phoxinus). It lurks on the stone bottoms of fast-flowing rivers in the day, coming out at night to feed on aquatic vertebrates. It reaches its full maturity after one year, and its length ranges from 10 to 20 cm (4 to 8 in). Breeding takes place in the deeper parts of riffles. Spawn is deposited on gravel and the eggs stick to the substrate and hatch in about fourteen days. The fertility of Zingel asper is related to its size.
Wikipedia: “Diet and habitat”
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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In the old herbals & bestiaries
In the stacks
Searching the stacks…
Every page naming Zingel asper in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 115267.