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Sphyraena afra, commonly known as the Guinean Barracuda or Senegalese Barracuda, is a large, predatory marine fish belonging to the family Sphyraenidae. It is characterized by its elongated, cylindrical body, powerful jaws, and sharp, conical teeth, adapted for a piscivorous diet. This species is a significant component of coastal marine ecosystems in its range and is commercially important.
Caratteristiche fisiche
- Forma del corpo
- torpedo
- Colorazione
- Dorsally dark grey to greenish-brown, fading to silvery-white on the flanks and belly. Often exhibits faint, irregular dark bars or blotches on the sides, which may be more prominent in juveniles or when stressed. Fins are typically dusky.
- Tipo di squame
- cycloid
- Posizione della bocca
- superior
- Caratteristiche distintive
- Elongated, cylindrical body, slightly compressed laterally., Large, pointed head with a prominent lower jaw that protrudes beyond the upper jaw., Powerful jaws armed with two rows of sharp, conical teeth: an outer row of small, closely set teeth and an inner row of larger, widely spaced, dagger-like teeth., Two widely separated dorsal fins; the first with 5 strong spines, the second with 1 spine and 9 soft rays., Pectoral fins are short and located low on the body., Pelvic fins are abdominal, situated beneath the first dorsal fin., Lateral line is well-developed and straight., Maximum recorded length up to 200 cm (79 inches) TL, common length around 100-150 cm (39-59 inches) TL. Maximum weight around 50 kg (110 lbs).
- Pinna dorsale
- Two widely separated dorsal fins. First dorsal fin with 5 strong spines. Second dorsal fin with 1 spine and 9 soft rays.
- Pinna caudale
- Forked caudal fin, with the posterior margin often dark.
- Pinna pettorale
- Short, located low on the body, with 13-15 rays.
- Pinne distintive
- Pelvic fins abdominal, positioned below the first dorsal fin, with 1 spine and 5 soft rays. Anal fin with 2 spines and 7-8 soft rays.
Consigli per l'identificazione
Body Shape and Size
Look for a very elongated, torpedo-shaped body, often exceeding 1 meter in length, with a prominent lower jaw.
Teeth
Observe the distinctive, large, dagger-like teeth in the inner row of the lower jaw, characteristic of barracudas.
Dorsal Fins
Note the two widely separated dorsal fins, with the first being spiny and the second soft-rayed.
Coloration
Identify the dark grey to greenish-brown dorsal coloration fading to silvery-white, sometimes with faint vertical bars on the sides.
Geographic Location
Confirming the catch location within the Eastern Atlantic (West African coast) helps differentiate it from other barracuda species.
Habitat
- Tipo di acqua
- saltwater
- Profondità
- Typically found from the surface down to about 100 meters (330 feet), but most commonly in shallower coastal waters.
- Ambiente
- Primarily coastal, inhabiting continental shelves, estuaries, lagoons, and nearshore reefs. Often found over sandy or muddy bottoms, near seagrass beds, and around rocky outcrops or artificial structures. Juveniles may utilize mangrove areas as nursery grounds.
- Areale geografico
- Eastern Atlantic Ocean, from Mauritania south to Angola, including the Cape Verde Islands. Its distribution is primarily along the West African coast.
Informazioni sull'acquario
- Livello di cura: expert
- Temperamento: aggressive
- Dieta: carnivore
- Dimensione minima della vasca: Not suitable for typical home aquaria due to size and predatory nature; requires very large public aquarium exhibits (thousands of gallons).
- Temperatura: 24-28°C (75-82°F)
- Livello di pH: 8.1-8.4
- Durezza: 8-12 dKH
- Compatibilità: Only compatible with very large, robust, and fast-moving fish that cannot be swallowed, or kept singly in species-specific exhibits. Highly predatory.
- Requisiti speciali: Requires immense swimming space, strong filtration, and a constant supply of live or fresh dead fish as food. Not recommended for private aquarists.
Informazioni in natura
- Stato di conservazione: least concern
- Stagionalità: Present year-round in its range, but local abundance and fishing pressure may vary seasonally.
- Prezzo di mercato: Varies significantly by region and market demand, often sold as fresh or frozen fillets.
- Importanza commerciale: medium
- Sapore: Mild, firm, white flesh.
- Consistenza: Firm, flaky.
- Metodi di cottura: Grilling, Baking, Frying, Smoking
- Valore nutrizionale: Good source of protein, omega-3 fatty acids, and various vitamins and minerals. Potential for ciguatera poisoning in some regions.
Fatti chiave
Ambush Predatorbehavior
Sphyraena afra is a classic ambush predator, relying on its speed and camouflage to surprise its prey. It often waits motionless before launching a rapid attack.
Top Predatorinteresting
As a top-tier predator in its coastal habitats, the Guinean Barracuda plays a crucial role in regulating populations of smaller fish species, contributing to ecosystem balance.
Ciguatera Riskinteresting
Like many large predatory reef fish, Sphyraena afra can accumulate ciguatoxins through its diet, posing a risk of ciguatera fish poisoning to humans who consume affected individuals. This risk varies geographically.
Solitary Hunterbehavior
While juveniles may form small schools, adult Sphyraena afra are typically solitary hunters, patrolling their territories alone.
Informazioni di sicurezza
Maneggiare con cura- Livello di sicurezza: caution
- Velenoso: No
- Commestibilità: edible
- Note sul maneggio: Barracudas possess extremely sharp teeth and powerful jaws. Exercise extreme caution when handling, especially if landed alive. Use appropriate tools (e.g., dehookers, lip grippers) to avoid direct contact with the mouth. Their thrashing can cause severe lacerations. There is a risk of ciguatera poisoning from consuming larger specimens, particularly in certain regions, so local advisories should be consulted.
Specie simili
Great Barracuda
Sphyraena barracuda
Sphyraena barracuda typically has more prominent, irregular dark blotches or bars on its sides, especially when young, and often has a few large, scattered black spots on the lower flanks. Its geographic range is much broader, encompassing tropical and subtropical waters worldwide. S. afra generally has a more uniform silvery body with fainter markings.
European Barracuda
Sphyraena sphyraena
Sphyraena sphyraena is found in the Mediterranean Sea and Eastern Atlantic (north of S. afra's range). It generally has a more slender body and often exhibits more distinct, wavy dark bars on its sides. Its maximum size is typically smaller than S. afra.
Guinean Barracuda (misidentification)
Sphyraena guachancho
While S. guachancho also occurs in the Eastern Atlantic, it is generally smaller, more slender, and has a more pointed snout. It typically lacks the prominent, large teeth of S. afra and has a more silvery, less dusky coloration.
Classificazione scientifica
- Regno
- Animalia
- Phylum
- Chordata
- Classe
- Actinopterygii
- Ordine
- Scombriformes
- Famiglia
- Sphyraenidae
- Genere
- Sphyraena
- Specie
- Sphyraena afra
Esplora Guinean Barracuda
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