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Zingel zingel, commonly known as the Zingel, is a species of freshwater ray-finned fish in the family Percidae. It is characterized by its elongated, cylindrical body, adapted for life on the riverbed. This benthic fish is a nocturnal predator, relying on its cryptic coloration to ambush prey. It is an important indicator species for the health of its riverine habitats.
Körperliche Merkmale
- Körperform
- elongated
- Färbung
- Dorsal side is typically yellowish-brown to olive-brown, often with 4-5 dark, irregular transverse bands or blotches that extend onto the flanks. The ventral side is whitish. This cryptic coloration provides excellent camouflage against the riverbed. Fins are often mottled or banded.
- Schuppentyp
- ctenoid
- Maulstellung
- inferior
- Besondere Merkmale
- Extremely elongated, cylindrical body, almost snake-like in appearance., Two distinct dorsal fins, widely separated., Small, inferior mouth., Absence of a swim bladder, contributing to its benthic lifestyle., Rough, ctenoid scales.
- Rückenflosse
- Two separate dorsal fins. The first dorsal fin has 8-10 strong, spiny rays. The second dorsal fin has 1 spiny ray and 17-20 soft rays.
- Schwanzflosse
- Caudal fin is slightly emarginate or truncate, with 17-19 rays.
- Brustflosse
- Pectoral fins are relatively large and fan-shaped, with 13-15 rays, used for maintaining position in strong currents.
- Auffällige Flossen
- Pelvic fins are thoracic, located directly below the pectoral fins, and are well-developed, aiding in anchoring to the substrate.
Bestimmungstipps
Body Shape
Look for its exceptionally elongated, slender, and cylindrical body, which is unique among European percids.
Dorsal Fins
Note the two distinctly separated dorsal fins. The first is spiny, and the second is soft-rayed.
Mouth Position
Observe the small, inferior mouth, adapted for feeding on benthic invertebrates.
Coloration
Identify the cryptic yellowish-brown to olive-brown coloration with dark transverse bands, providing camouflage on the riverbed.
Size
Adults typically reach 20-30 cm (8-12 inches) in length, with a maximum recorded length of about 48 cm (19 inches).
Lebensraum
- Wassertyp
- freshwater
- Tiefe
- Typically found in shallow to moderately deep sections of rivers, usually 0.5 to 5 meters, but can occur deeper.
- Umgebung
- Prefers fast-flowing, clear, and well-oxygenated rivers with gravel, pebble, or sandy bottoms. It is a rheophilic species, often found in riffles and runs, hiding among stones and detritus. Avoids stagnant or heavily silted areas.
- Geografische Verbreitung
- Native to the Danube River basin and its tributaries in Central and Eastern Europe, including countries such as Austria, Slovakia, Hungary, Serbia, Romania, Bulgaria, Ukraine, and Moldova. Its distribution is fragmented due to habitat degradation.
Aquarieninformationen
- Pflegeaufwand: expert
- Temperament: territorial
- Ernährung: carnivore
- Mindestbeckengröße: 500 liters
- Temperatur: 10-20°C (50-68°F)
- pH-Wert: 7.0-8.0
- Härte: 10-25 dGH
- Verträglichkeit: Best kept in a species-specific tank or with other large, robust, bottom-dwelling fish that can tolerate similar cool, flowing water conditions. Avoid small or timid fish as they may be preyed upon.
- Besondere Anforderungen: Requires a large, well-filtered aquarium with strong water flow to mimic its natural riverine habitat. Substrate should consist of fine gravel and sand with plenty of hiding spots provided by rocks and driftwood. Excellent water quality and high oxygen levels are crucial. Not suitable for typical home aquariums due to its specific environmental needs and size.
Informationen zum Wildbestand
- Erhaltungszustand: least concern
- Saisonalität: Spawns in spring (typically March to May) when water temperatures rise. Activity is generally higher during warmer months and at night.
- Marktpreis: N/A (not commercially fished for consumption)
- Kommerzielle Bedeutung: none
- Geschmack: Not typically consumed due to its conservation status and small size.
- Textur: N/A
- Nährwert: N/A
Wichtige Fakten
No Swim Bladderbehavior
Zingel zingel lacks a functional swim bladder, which is unusual for a bony fish. This adaptation allows it to remain firmly on the riverbed in strong currents without being swept away, but also means it cannot maintain neutral buoyancy in the water column.
Nocturnal Hunterbehavior
This species is primarily nocturnal, emerging from its hiding places among stones and gravel at night to hunt for benthic invertebrates and small fish.
Indicator Speciesinteresting
Due to its specific habitat requirements for clean, fast-flowing, and well-oxygenated water, Zingel zingel is considered an important bioindicator of good ecological status in river ecosystems.
Cryptic Camouflageamazing
Its elongated body and mottled coloration provide excellent camouflage, allowing it to blend seamlessly with the gravel and pebble substrate of its riverine habitat, making it difficult for both prey and predators to spot.
Unique Locomotionbehavior
Instead of swimming freely, Zingel zingel often 'creeps' or 'glides' along the bottom using its pectoral and pelvic fins, maintaining constant contact with the substrate.
Sicherheitsinformationen
Sicher- Sicherheitsstufe: safe
- Giftig: Nein
- Essbarkeit: not recommended
- Hinweise zum Umgang: Zingel zingel is not venomous. However, like many percids, its dorsal and anal fins possess sharp spines that can cause minor punctures if handled carelessly. It is best to handle with wet hands to protect its slime coat and minimize stress. Due to its conservation status, handling should be minimized and done with care.
Ähnliche Arten
Schraetzer
Zingel streber
Zingel streber is even more slender and elongated than Zingel zingel, with a more pointed snout and typically more numerous and distinct dark transverse bands (usually 5-7). Its eyes are also positioned more dorsally. Z. streber generally prefers even faster currents and deeper water.
Balon's Ruffe
Gymnocephalus baloni
Gymnocephalus baloni has a much deeper and more compressed body compared to the elongated, cylindrical body of Zingel zingel. It also has a single, continuous dorsal fin (though deeply notched) and lacks the distinct separation seen in Zingel species. Its coloration is also different, often with irregular dark spots rather than distinct bands.
Common Ruffe
Gymnocephalus cernua
Similar to Balon's Ruffe, the Common Ruffe has a deeper, more compressed body and a single, continuous dorsal fin. It is generally smaller and has a more widespread distribution, often found in slower-moving or still waters, unlike the rheophilic Zingel zingel.
Wissenschaftliche Klassifikation
- Reich
- Animalia
- Stamm
- Chordata
- Klasse
- Actinopterygii
- Ordnung
- Perciformes
- Familie
- Percidae
- Gattung
- Zingel
- Art
- Zingel zingel
Zingel entdecken
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