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Apri l'appDescrizione
Chelidonichthys lucerna, commonly known as the Tub Gurnard, is a demersal fish belonging to the family Triglidae. It is characterized by its large, bony head, prominent pectoral fins, and the ability to 'walk' on the seabed using modified fin rays. This species is highly valued in commercial fisheries and is recognized for its distinctive vocalizations.
Caratteristiche fisiche
- Forma del corpo
- elongated
- Colorazione
- Highly variable, typically reddish-brown to orange-red on the dorsal side, fading to pinkish or whitish on the ventral side. The pectoral fins are often strikingly colored, displaying iridescent blue, green, or purple spots and margins, particularly noticeable when spread.
- Tipo di squame
- ctenoid
- Posizione della bocca
- terminal
- Caratteristiche distintive
- Large, bony head encased in bony plates and spines., Two separate dorsal fins., Three free, finger-like rays on each pectoral fin, used for 'walking' on the seabed and sensing prey., Large, fan-like pectoral fins, often with vibrant coloration., Prominent lateral line.
- Pinna dorsale
- Two dorsal fins: the first with 9-11 strong, spiny rays; the second with 15-17 soft rays. The first dorsal fin is typically higher.
- Pinna caudale
- Caudal fin is truncate or slightly emarginate.
- Pinna pettorale
- Large and fan-shaped, extending beyond the origin of the anal fin. The three lowermost rays are free, thickened, and used as sensory and locomotive appendages. Pectoral fins often display vibrant blue or green spots.
- Pinne distintive
- The free pectoral fin rays are a key diagnostic feature, allowing the fish to 'walk' and probe the substrate. The large, colorful pectoral fins are also highly distinctive.
Consigli per l'identificazione
Pectoral Fins
Look for the large, fan-like pectoral fins with three free, finger-like rays at the bottom. These fins often have striking iridescent blue or green spots and margins.
Head Shape
Observe the large, bony, and somewhat flattened head, which is armored with ridges and spines. The snout is relatively blunt.
Coloration
Note the reddish-brown to orange-red body color, which can vary depending on the substrate and depth. The ventral side is paler.
Dorsal Fins
Identify the two distinct dorsal fins; the first is spiny and higher, while the second is soft-rayed.
Habitat
- Tipo di acqua
- saltwater
- Profondità
- Typically found at depths ranging from 10 to 150 meters, though occasionally encountered deeper (up to 300 meters).
- Ambiente
- Demersal, inhabiting sandy, muddy, or gravelly bottoms. Prefers relatively flat or gently sloping substrates where it can forage for benthic invertebrates and small fish. Often found near coastal areas, estuaries, and offshore banks.
- Areale geografico
- Eastern Atlantic Ocean, from Norway and the British Isles south to Mauritania, including the Mediterranean Sea and the Black Sea. Also found around the Canary Islands and Madeira.
Informazioni sull'acquario
- Livello di cura: expert
- Temperamento: semi-aggressive
- Dieta: carnivore
- Dimensione minima della vasca: 500 gallons
- Temperatura: 10-20°C (50-68°F)
- Livello di pH: 8.1-8.4
- Durezza: 1.020-1.025 SG
- Compatibilità: Not suitable for typical home aquariums due to size, specialized needs, and predatory nature. Best kept in large public aquariums with appropriate tank mates.
- Requisiti speciali: Requires a very large, well-filtered coldwater marine aquarium with a soft sand substrate for burrowing. Live rock and ample hiding places are essential. Diet must consist of fresh, varied marine prey. Not recommended for amateur aquarists.
Informazioni in natura
- Stato di conservazione: least concern
- Stagionalità: Available year-round, but peak catches often occur during warmer months when they are more active and closer to shore.
- Prezzo di mercato: Varies by region and season, generally moderate to high due to good flesh quality.
- Importanza commerciale: medium
- Sapore: Mild, sweet, and delicate flavor.
- Consistenza: Firm, white, flaky flesh.
- Metodi di cottura: Baking, Grilling, Frying, Steaming, Soups and stews
- Valore nutrizionale: Good source of lean protein, Omega-3 fatty acids, and various vitamins and minerals.
Fatti chiave
Walking Fishbehavior
Tub Gurnards use their three free, finger-like pectoral fin rays to 'walk' along the seabed, probing the substrate for food. These rays are highly sensitive chemoreceptors and mechanoreceptors.
Vocalizationsbehavior
Gurnards are known to produce a variety of sounds, including grunts and croaks, by vibrating their swim bladder. These sounds are thought to be used for communication, especially during spawning or when disturbed.
Camouflage Mastersbehavior
Their variable coloration allows them to effectively camouflage themselves against different seabed types, helping them ambush prey and avoid predators.
Sensory Pectoralsamazing
The free pectoral fin rays are not just for locomotion; they are packed with taste buds and touch receptors, acting like 'fingers' to detect prey hidden in the sand or mud.
Informazioni di sicurezza
Maneggiare con cura- Livello di sicurezza: caution
- Velenoso: Sì
- Commestibilità: edible
- Note sul maneggio: The Tub Gurnard possesses sharp spines on its dorsal fins and operculum (gill covers) that can inflict painful stings. While not typically life-threatening, the venom can cause localized pain, swelling, and discomfort. Handle with care, preferably using thick gloves or a fish gripper, avoiding direct contact with the spiny areas. If stung, clean the wound thoroughly and immerse the affected area in hot water (as hot as can be tolerated) to denature the protein-based venom. Seek medical attention if symptoms persist or worsen.
Specie simili
Grey Gurnard
Eutrigla gurnardus
The Grey Gurnard typically has a greyish-brown body coloration, lacking the prominent reddish hues of the Tub Gurnard. Its pectoral fins are less strikingly colored, usually duller, and do not possess the vibrant blue or green spots. The head of the Grey Gurnard is also less heavily armored.
Red Gurnard
Aspitrigla cuculus
While also reddish, the Red Gurnard (Aspitrigla cuculus) generally has a more uniformly red body and lacks the prominent blue or green spots on its pectoral fins that are characteristic of the Tub Gurnard. Its head is also less broad and bony.
Streaked Gurnard
Trigloporus lastoviza
The Streaked Gurnard has a more elongated body and is characterized by distinct dark vertical bands or streaks on its flanks, which are absent in the Tub Gurnard. Its pectoral fins are also less expansive and lack the vibrant blue spots.
Classificazione scientifica
- Regno
- Animalia
- Phylum
- Chordata
- Classe
- Actinopterygii
- Ordine
- Scorpaeniformes
- Famiglia
- Triglidae
- Genere
- Chelidonichthys
- Specie
- lucerna
Esplora Tub Gurnard
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