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Cynoscion nebulosus, commonly known as the Spotted Seatrout or Corvina pinta, is a popular estuarine and coastal marine fish belonging to the family Sciaenidae (drums and croakers). It is highly prized by recreational anglers and commercially important throughout its range. This species is characterized by its elongated, somewhat compressed body, silvery coloration, and distinctive black spots scattered across its back and fins. It is a predatory fish, primarily feeding on smaller fish and crustaceans, and plays a significant ecological role in the estuarine food web.
Características físicas
- Formato do corpo
- elongated
- Coloração
- Silvery-gray to greenish-gray on the dorsal side, fading to a silvery-white belly. Numerous distinct, irregular black spots are scattered over the back, sides, and dorsal and caudal fins. The spots are typically larger and more prominent on the upper body.
- Tipo de escama
- ctenoid
- Posição da boca
- superior
- Características distintivas
- Elongated body with a slightly elevated back., Two large, prominent canine-like teeth at the tip of the upper jaw., Numerous distinct black spots on the upper body and fins., Absence of barbels on the chin., Lateral line extends to the end of the caudal fin.
- Nadadeira dorsal
- Two dorsal fins; the first is spiny with 9-11 spines, and the second is soft-rayed with 1 spine and 25-28 soft rays. The two fins are separated by a deep notch.
- Nadadeira caudal
- Truncate to slightly emarginate caudal fin.
- Nadadeira peitoral
- Relatively short pectoral fins, typically not reaching the anus.
- Nadadeiras características
- The soft dorsal and caudal fins are often heavily spotted, a key identification feature.
Dicas de identificação
Spots
Look for numerous distinct black spots on the upper body, dorsal fin, and caudal fin. This is the most reliable distinguishing feature from other Cynoscion species.
Teeth
Examine the mouth for two prominent canine-like teeth at the front of the upper jaw. This helps differentiate it from other sciaenids.
Lateral Line
Note that the lateral line extends all the way to the tip of the caudal fin, a characteristic of the genus Cynoscion.
Body Shape
Observe the elongated, somewhat slender body, typical of a swift predator.
Habitat
- Tipo de água
- brackish
- Profundidade
- Typically found in shallow waters, from less than 1 meter to about 10 meters (3-33 feet), though occasionally deeper.
- Ambiente
- Estuaries, coastal bays, lagoons, and nearshore coastal waters. Prefers seagrass beds, oyster reefs, and other structured habitats that provide cover and foraging opportunities. Tolerates a wide range of salinities, from nearly freshwater to full oceanic salinity.
- Distribuição geográfica
- Western Atlantic Ocean, from Cape Cod, Massachusetts, south along the U.S. coast, throughout the Gulf of Mexico, and along the coast of Mexico to the Yucatán Peninsula.
Informações sobre aquário
- Nível de cuidado: advanced
- Temperamento: semi-aggressive
- Alimentação: carnivore
- Tamanho mínimo do aquário: 300 gallons
- Temperatura: 20-28°C (68-82°F)
- Nível de pH: 7.8-8.4
- Dureza da água: 1.020-1.025 SG
- Compatibilidade: Best kept in a species-specific tank or with other large, robust, and similarly sized predatory fish. Avoid keeping with smaller fish or invertebrates as they will be preyed upon.
- Requisitos especiais: Requires a very large tank with excellent filtration and strong water movement. Live or fresh dead fish and crustaceans are essential for diet. Not commonly kept in home aquaria due to size and predatory nature.
Informações no ambiente natural
- Estado de conservação: least concern
- Sazonalidade: Spawning typically occurs from spring through early fall, with peak activity in warmer months. Fishing regulations often vary by season to protect spawning aggregations.
- Preço de mercado: Varies significantly by region and season, generally moderate to high due to demand.
- Importância comercial: medium
- Sabor: Mild, flaky, and slightly sweet.
- Textura: Delicate, white, and firm.
- Métodos de preparo: Baking, Grilling, Frying, Pan-searing, Broiling
- Valor nutricional: Excellent source of lean protein, Omega-3 fatty acids, and various vitamins and minerals.
Fatos principais
Drumming Soundbehavior
Like other members of the Sciaenidae family, male Spotted Seatrout produce a drumming sound during spawning by vibrating specialized muscles against their swim bladder. This sound is used to attract females.
Top Estuarine Predatorbehavior
Spotted Seatrout are apex predators in many estuarine systems, playing a crucial role in controlling populations of smaller fish and invertebrates, thus maintaining ecosystem balance.
Longevityinteresting
While most individuals caught are relatively young, Spotted Seatrout can live up to 10-12 years, with growth rates varying significantly based on environmental conditions and food availability.
Habitat Dependencyinteresting
Their strong reliance on healthy seagrass beds and oyster reefs makes them excellent indicator species for the overall health of estuarine ecosystems.
Informações de segurança
Seguro- Nível de segurança: safe
- Venenoso: Não
- Comestibilidade: edible
- Observações de manuseio: No specific handling precautions are required beyond standard fish handling practices to avoid fin spines. The teeth are small but can cause minor abrasions if not handled carefully.
Espécies similares
Silver Seatrout
Cynoscion nothus
Lacks the distinct black spots of the Spotted Seatrout. Generally smaller and more uniformly silvery.
Sand Seatrout
Cynoscion arenarius
Possesses faint, irregular spots or blotches, but these are much less distinct and numerous than those of the Spotted Seatrout. The Sand Seatrout also has a more pointed snout and a slightly different fin ray count.
Weakfish
Cynoscion regalis
Has small, irregular spots that are less defined and often form wavy lines rather than distinct spots. The Weakfish typically has a more yellowish tint on its fins and a more compressed body.
Classificação científica
- Reino
- Animalia
- Filo
- Chordata
- Classe
- Actinopterygii
- Ordem
- Perciformes
- Família
- Sciaenidae
- Gênero
- Cynoscion
- Espécie
- Cynoscion nebulosus
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