Hai una foto? Identifica i pesci all'istante con l'app Fishby.
Apri l'appDescrizione
Squalius squalus, commonly known as the Triotto or European Chub, is a widespread freshwater fish belonging to the family Cyprinidae. It is characterized by its robust, elongated body, large head, and relatively large scales. This species is highly adaptable and can be found in a variety of freshwater habitats across Europe. It is an opportunistic omnivore, feeding on a wide range of aquatic and terrestrial invertebrates, as well as plant matter and smaller fish. The Triotto plays an important ecological role as both a predator and prey species within its ecosystems.
Caratteristiche fisiche
- Forma del corpo
- torpedo
- Colorazione
- Dorsal side is typically dark greenish-brown to grey, fading to silvery-white on the flanks and belly. Fins are generally dusky, sometimes with a reddish tinge, especially the anal and pectoral fins in breeding males.
- Tipo di squame
- cycloid
- Posizione della bocca
- terminal
- Caratteristiche distintive
- Large, robust head with a wide, terminal mouth., Relatively large scales, with 40-46 scales along the lateral line., Strong, slightly compressed body., Convex dorsal profile.
- 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 and rounded, with 17-18 rays.
- Pinne distintive
- Anal fin is short with 3 unbranched and 7-9 branched rays. Pelvic fins are abdominal.
Consigli per l'identificazione
Body Shape and Size
Robust, elongated body, typically reaching 30-60 cm in length, though specimens over 80 cm and 8 kg have been recorded. The body is slightly compressed laterally.
Head and Mouth
Large head with a broad, terminal mouth that extends to below the anterior margin of the eye. No barbels present.
Scales
Large, cycloid scales. Count 40-46 scales along the lateral line, which is complete and slightly decurved.
Fin Characteristics
Dorsal fin has 3 unbranched and 7-9 branched rays. Anal fin has 3 unbranched and 7-9 branched rays. Caudal fin is deeply forked. Pectoral and pelvic fins are relatively small.
Coloration
Dorsal surface dark grey-green to brown, flanks silvery, belly white. Fins are generally dusky, sometimes with a reddish tint, especially in breeding males.
Habitat
- Tipo di acqua
- freshwater
- Profondità
- Typically found in shallow to moderately deep waters, from surface to several meters.
- Ambiente
- Prefers clear, well-oxygenated rivers and streams with moderate to fast currents, but can also be found in lakes, reservoirs, and canals. Often associated with areas offering cover such as submerged vegetation, undercut banks, and fallen trees. Tolerant of a wide range of water conditions.
- Areale geografico
- Widespread across Europe, from the British Isles and Scandinavia south to the Iberian Peninsula and east to the Ural Mountains. Absent from Ireland and parts of northern Scandinavia.
Informazioni sull'acquario
- Livello di cura: intermediate
- Temperamento: semi-aggressive
- Dieta: omnivore
- Dimensione minima della vasca: 200 gallons
- Temperatura: 10-22°C (50-72°F)
- Livello di pH: 6.5-7.5
- Durezza: 5-20 dGH
- Compatibilità: Best kept in a species-specific tank or with other large, robust, temperate-water fish. Avoid small or delicate tank mates.
- Requisiti speciali: Requires a large tank with strong filtration and good oxygenation. Provide plenty of hiding spots with rocks and driftwood, and a substrate of sand or fine gravel. Mimic a riverine environment with moderate to strong current in parts of the tank. Can be prone to stress in small or overcrowded conditions.
Informazioni in natura
- Stato di conservazione: least concern
- Stagionalità: Spawns in spring (typically April-June) when water temperatures rise. Feeding activity is highest during warmer months and decreases in winter.
- Prezzo di mercato: Low
- Importanza commerciale: low
- Sapore: Mild, somewhat earthy, can be bony
- Consistenza: Flaky, but can be soft
- Metodi di cottura: Frying, Baking, Smoking, Stewing
- Valore nutrizionale: Good source of protein and omega-3 fatty acids, though often overlooked due to bone content.
Fatti chiave
Opportunistic Feederbehavior
The Triotto is a highly opportunistic omnivore, known to consume a vast array of food items including insects (aquatic and terrestrial), crustaceans, mollusks, worms, plant matter, algae, and even small fish, frogs, and rodents. This adaptability contributes to its widespread success.
Habitat Generalistamazing
Unlike many fish species with very specific habitat requirements, the Triotto can thrive in a wide range of freshwater environments, from fast-flowing upland rivers to slow-moving lowland canals and even some brackish waters, demonstrating remarkable ecological plasticity.
Longevityinteresting
Triotto can live for a considerable period, with individuals often reaching 15-20 years in the wild under favorable conditions, making them one of the longer-lived cyprinids.
Angler's Targetinteresting
Despite its often bony flesh, the Triotto is a popular target for recreational anglers due to its widespread distribution, willingness to take a variety of baits, and strong fighting spirit when hooked.
Taxonomic Historyevolution
The genus Squalius has undergone significant taxonomic revision. Historically, many species now recognized as distinct were grouped under 'Leuciscus cephalus', the scientific name for the European Chub. Modern genetic studies have clarified these relationships, leading to the current classification of Squalius squalus for the Triotto.
Informazioni di sicurezza
Sicuro- Livello di sicurezza: safe
- Velenoso: No
- Commestibilità: edible
- Note sul maneggio: No specific handling precautions are required beyond standard fish handling practices to minimize stress to the fish and avoid injury to the handler from spines or sharp gill plates. Return to water quickly if caught and released.
Specie simili
Ide
Leuciscus idus
The Ide has smaller scales (55-61 along the lateral line) and a more slender body. Its dorsal fin is typically located further forward than that of the Chub.
Dace
Leuciscus leuciscus
The Dace is generally smaller, more slender, and has a more pointed snout. Its scales are also smaller (47-53 along the lateral line) and its fins are typically paler.
Asp
Leuciscus aspius
The Asp has a more elongated, torpedo-shaped body, a larger mouth, and a more predatory appearance. Its scales are also smaller (64-76 along the lateral line).
Classificazione scientifica
- Regno
- Animalia
- Phylum
- Chordata
- Classe
- Actinopterygii
- Ordine
- Cypriniformes
- Famiglia
- Cyprinidae
- Genere
- Squalius
- Specie
- squalus
Esplora Triotto
Identifica pesci ovunque
Gratis su iOS, Android e Web. Identificazione tramite foto, dettagli completi sulle specie e molto altro.