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Diplodus sargus sargus, commonly known as the Sargo or White Seabream, is a demersal marine fish belonging to the family Sparidae. It is a highly valued species, both commercially and recreationally, known for its palatable flesh and challenging fight for anglers. This subspecies is characterized by its silvery body with distinct vertical black bands and a prominent black spot on the caudal peduncle. It is a schooling fish, particularly when young, and inhabits coastal waters over rocky, sandy, and seagrass bottoms.
Características físicas
- Formato do corpo
- compressed
- Coloração
- Silvery-grey body with 5-9 distinct, dark vertical bands (often 7-8 are prominent) that extend from the dorsal fin to below the lateral line. A prominent, saddle-like black spot is present on the caudal peduncle, often extending onto the lower rays of the caudal fin. The fins are generally dusky, with the caudal fin often having a darker margin.
- Tipo de escama
- ctenoid
- Posição da boca
- terminal
- Características distintivas
- 7-8 prominent dark vertical bands on the flanks., Large, distinct black saddle-like spot on the caudal peduncle., Small, protractile mouth with incisor-like teeth in the front and molar-like teeth in the back., Relatively large eyes., Maximum recorded length up to 45 cm (18 inches), but commonly found between 20-30 cm (8-12 inches)., Maximum weight around 2 kg (4.4 lbs).
- Nadadeira dorsal
- Single dorsal fin with 11-12 spines and 13-16 soft rays. The spiny portion is longer than the soft-rayed portion.
- Nadadeira caudal
- Moderately forked caudal fin.
- Nadadeira peitoral
- Long and pointed pectoral fins.
- Nadadeiras características
- Anal fin with 3 spines and 12-15 soft rays. Pelvic fins are thoracic.
Dicas de identificação
Vertical Bands
Count the number of distinct dark vertical bands on the body. Diplodus sargus sargus typically has 7-8 prominent bands, which can sometimes fade or become less distinct in larger, older individuals.
Caudal Peduncle Spot
Look for the characteristic large, saddle-like black spot on the caudal peduncle (the narrow part of the body before the tail fin). This spot is a key identifier and is usually very clear.
Body Shape and Color
Observe the overall silvery-grey body color and the compressed, oval body shape. The head profile is slightly convex.
Mouth and Teeth
Note the small, slightly protractile mouth with incisor-like teeth at the front for nipping and molar-like teeth at the back for crushing shells.
Habitat
- Tipo de água
- saltwater
- Profundidade
- Typically found from the surface down to 50 meters (164 feet), occasionally deeper to 100 meters (328 feet). Juveniles often inhabit shallower waters.
- Ambiente
- Prefers coastal areas with rocky reefs, seagrass beds (Posidonia oceanica), sandy bottoms, and estuaries. Often found near structures like jetties, breakwaters, and submerged rocks. Juveniles frequently form schools in very shallow, protected areas.
- Distribuição geográfica
- Eastern Atlantic Ocean, from the Bay of Biscay south to South Africa, including the Canary Islands, Cape Verde, and Madeira. Also widely distributed throughout the Mediterranean Sea and the Black Sea.
Informações sobre aquário
- Nível de cuidado: advanced
- Temperamento: semi-aggressive
- Alimentação: omnivore
- Tamanho mínimo do aquário: 500 gallons
- Temperatura: 18-24°C (64-75°F)
- Nível de pH: 8.1-8.4
- Dureza da água: 8-12 dKH
- Compatibilidade: Best kept in a species-specific tank or with other large, robust, and similarly tempered marine fish. Avoid keeping with smaller or timid species as they may be bullied or preyed upon.
- Requisitos especiais: Requires a large tank with ample swimming space and plenty of rockwork for shelter. Excellent filtration is essential due to their active feeding habits. A varied diet of high-quality pellets, frozen foods (shrimp, squid, mussels), and occasional vegetable matter is crucial. Can be prone to stress in smaller enclosures.
Informações no ambiente natural
- Estado de conservação: least concern
- Sazonalidade: Spawning typically occurs from late winter to early spring (February-April) in the Mediterranean. Fishing pressure can increase during these periods. Availability in markets is generally year-round, but peak catches may align with post-spawning aggregations.
- Preço de mercado: Moderate to high, depending on region and size.
- Importância comercial: medium
- Sabor: Mild, delicate, and slightly sweet.
- Textura: Firm, flaky, and white.
- Métodos de preparo: Grilled, Baked, Fried, Steamed, Roasted
- Valor nutricional: Good source of lean protein, Omega-3 fatty acids, and various vitamins and minerals.
Fatos principais
Hermaphroditismbehavior
Diplodus sargus sargus is a protandrous hermaphrodite, meaning individuals mature first as males and later transition to females. This sexual plasticity is common among sparids.
Dietary Versatilitybehavior
Sargo are opportunistic omnivores with a highly varied diet, adapting their feeding to available resources. Their strong teeth allow them to consume a wide range of prey, from algae and seagrass to crustaceans, mollusks, and small fish.
Habitat Generalistsbehavior
This species demonstrates remarkable adaptability to various coastal habitats, including rocky reefs, sandy bottoms, seagrass meadows, and even brackish estuaries, showcasing its ecological resilience.
Subspecies Diversityevolution
Diplodus sargus is a complex species group with several recognized subspecies (e.g., D. s. sargus, D. s. cadenati, D. s. helenae, D. s. lineatus, D. s. capensis), each with distinct geographic distributions and subtle morphological differences.
Informações de segurança
Seguro- Nível de segurança: safe
- Venenoso: Não
- Comestibilidade: edible
- Observações de manuseio: Sargo are not venomous. However, like many fish, they possess sharp dorsal and anal fin spines that can inflict painful punctures if not handled carefully. Use gloves or a fish gripper when handling to avoid injury. Their teeth, while not designed for biting humans, can also cause minor nips.
Espécies similares
Annular Seabream
Diplodus annularis
Distinguished by a single, very prominent black spot on the caudal peduncle (not saddle-like) and a yellowish pelvic fin. It lacks the distinct vertical bands of D. sargus sargus.
Zebra Seabream
Diplodus cervinus
Has fewer (typically 5-6), much broader, and more intensely black vertical bands that are usually more persistent in adults. The caudal peduncle spot is less distinct or absent, and the body is generally deeper.
Two-banded Seabream
Diplodus vulgaris
Characterized by two very prominent black bands: one behind the head (nuchal band) and another on the caudal peduncle. It lacks the multiple vertical bands of D. sargus sargus.
Sharpsnout Seabream
Diplodus puntazzo
Possesses a more pointed snout and a more elongated body shape. While it has vertical bands, they are generally less distinct and more numerous (around 10-12) than in D. sargus sargus. The caudal peduncle spot is also less pronounced.
Classificação científica
- Reino
- Animalia
- Filo
- Chordata
- Classe
- Actinopterygii
- Ordem
- Spariformes
- Família
- Sparidae
- Gênero
- Diplodus
- Espécie
- Diplodus sargus
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