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Leuciscus souffia, commonly known as the Souffia or Blageon, is a small to medium-sized freshwater fish belonging to the family Cyprinidae. It is characterized by its slender, elongated body and silvery coloration. This species is native to various river systems in Western and Central Europe, preferring clear, oxygen-rich waters with gravelly or stony substrates. It is an omnivorous species, feeding on a variety of aquatic invertebrates, algae, and detritus. While not a primary target for commercial fisheries, it plays an ecological role in its native habitats.
Caratteristiche fisiche
- Forma del corpo
- elongated
- Colorazione
- Dorsal side is typically dark grey to greenish-brown, fading to silvery flanks and a whitish belly. Fins are generally greyish, sometimes with a reddish tinge, especially during spawning season. A faint lateral line is present.
- Tipo di squame
- cycloid
- Posizione della bocca
- subterminal
- Caratteristiche distintive
- Slender, fusiform body, Relatively small head with a subterminal mouth, Large, cycloid scales, Absence of barbels
- Pinna dorsale
- Short, with 3 unbranched and 7-9 branched rays. Originates slightly behind the pelvic fin origin.
- Pinna caudale
- Deeply forked, with pointed lobes.
- Pinna pettorale
- Relatively short, positioned low on the body.
- Pinne distintive
- All fins are typically greyish, sometimes with a reddish hue, particularly the anal and caudal fins in breeding males.
Consigli per l'identificazione
Body Shape and Size
Slender, elongated body, typically reaching 15-25 cm in length, with a maximum recorded length of around 30 cm. The body is laterally compressed.
Mouth Position
Subterminal mouth, meaning it is slightly below the tip of the snout, adapted for bottom feeding.
Scales
Relatively large cycloid scales, with 48-55 scales along the lateral line.
Fins
Dorsal fin originates slightly behind the pelvic fin. Caudal fin is deeply forked. No barbels are present around the mouth.
Coloration
Silvery flanks, darker back, and whitish belly. Fins are generally grey, sometimes with a reddish tint, especially in breeding males.
Habitat
- Tipo di acqua
- freshwater
- Profondità
- Typically found in shallow to moderately deep sections of rivers and streams, usually less than 2 meters.
- Ambiente
- Prefers clear, fast-flowing, oxygen-rich rivers and larger streams with gravel, pebble, or stony substrates. Often found in riffles and runs, but also in deeper pools with good current. Requires clean water and is sensitive to pollution.
- Areale geografico
- Native to Western and Central Europe, including river systems draining into the Atlantic Ocean, North Sea, and Mediterranean Sea. Distribution includes France, Germany, Switzerland, Austria, Italy, and parts of the Balkan Peninsula. Specific river basins include the Rhine, Rhône, Danube, and Po.
Informazioni sull'acquario
- Livello di cura: advanced
- Temperamento: peaceful
- Dieta: omnivore
- Dimensione minima della vasca: 200 liters (50 gallons)
- Temperatura: 10-20°C (50-68°F)
- Livello di pH: 6.5-7.5
- Durezza: 5-15 dGH
- Compatibilità: Best kept in a species-specific tank or with other coldwater, peaceful fish of similar size. Avoid aggressive or fin-nipping species.
- Requisiti speciali: Requires highly oxygenated water with good filtration and moderate to strong current. A substrate of fine gravel or sand with smooth rocks and driftwood is ideal. Needs ample swimming space and some shaded areas. Sensitive to poor water quality.
Informazioni in natura
- Stato di conservazione: least concern
- Stagionalità: Spawns in spring (typically April to June) when water temperatures rise. More active during warmer months.
- Prezzo di mercato: N/A
- Importanza commerciale: none
- Sapore: Mild, somewhat bony
- Consistenza: Flaky
- Metodi di cottura: Frying, Grilling, Poaching
- Valore nutrizionale: Low fat, moderate protein. Not commonly consumed due to small size and numerous bones.
Fatti chiave
Habitat Indicatorinteresting
Leuciscus souffia is often considered an indicator species for good water quality due to its preference for clear, oxygen-rich, and unpolluted river environments.
Dietary Flexibilitybehavior
Despite its small size, the Souffia exhibits a flexible omnivorous diet, adapting its feeding habits to the availability of aquatic insects, larvae, algae, and detritus in its specific habitat.
Spawning Migrationbehavior
During the spawning season, Leuciscus souffia undertakes short upstream migrations to find suitable gravelly areas for egg deposition, highlighting its reliance on connected river systems.
Taxonomic Stabilityevolution
While many cyprinid species have undergone significant taxonomic revisions, Leuciscus souffia has maintained its species status with relatively few major changes, though some subspecies have been recognized historically.
Informazioni di sicurezza
Sicuro- Livello di sicurezza: safe
- Velenoso: No
- Commestibilità: not recommended
- Note sul maneggio: No specific handling precautions are required. Handle gently to avoid injury to the fish. Not known to bite or possess any defensive mechanisms harmful to humans.
Specie simili
Common Chub
Squalius cephalus
Leuciscus souffia has a more slender body, a smaller head, and a more pointed snout compared to the Common Chub. The mouth of L. souffia is subterminal, while S. cephalus has a terminal mouth. L. souffia also lacks the prominent dark scale margins often seen in S. cephalus.
Dace
Leuciscus leuciscus
The Dace (Leuciscus leuciscus) has a more terminal mouth and typically a more silvery, less brownish coloration. The dorsal fin of L. leuciscus usually originates directly above or slightly in front of the pelvic fin, whereas in L. souffia, it originates slightly behind.
Minnow
Phoxinus phoxinus
Minnows are generally much smaller, have a more rounded body shape, and often exhibit distinct dark blotches or a lateral band. L. souffia is larger and lacks these prominent markings.
Classificazione scientifica
- Regno
- Animalia
- Phylum
- Chordata
- Classe
- Actinopterygii
- Ordine
- Cypriniformes
- Famiglia
- Cyprinidae
- Genere
- Leuciscus
- Specie
- Leuciscus souffia
Esplora Souffia
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