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Scomber scombrus, commonly known as the Atlantic Mackerel or Cavala, is a pelagic schooling fish belonging to the family Scombridae. It is a highly migratory species, renowned for its streamlined, fusiform body adapted for swift movement through water. This species is of significant commercial importance globally and plays a crucial role in marine food webs.
Características físicas
- Formato do corpo
- torpedo
- Coloração
- Dorsal side is iridescent blue-green with 23-33 irregular, wavy, dark vertical bars or stripes extending down to the lateral line. Sides are silvery-white, and the belly is white. The coloration fades rapidly after death.
- Tipo de escama
- cycloid
- Posição da boca
- terminal
- Características distintivas
- Two widely separated dorsal fins, Five dorsal finlets and five anal finlets posterior to the second dorsal and anal fins, respectively, Small, cycloid scales covering the entire body, giving a smooth appearance, Absence of a swim bladder, Small, pointed head with a large mouth
- Nadadeira dorsal
- Two dorsal fins; the first with 10-13 spines, the second with 10-15 soft rays, followed by 5 finlets.
- Nadadeira caudal
- Deeply forked caudal fin, characteristic of fast-swimming pelagic fish.
- Nadadeira peitoral
- Short, triangular pectoral fins, typically 18-21 rays.
- Nadadeiras características
- Five small finlets posterior to both the second dorsal and anal fins.
Dicas de identificação
Dorsal Stripes
Look for the distinctive wavy, dark vertical bars on the iridescent blue-green dorsal surface. These do not extend below the lateral line.
Finlets
Count the five small finlets behind both the second dorsal and anal fins. This is a key characteristic of Scombridae.
Absence of Swim Bladder
Unlike many fish, Scomber scombrus lacks a swim bladder, requiring constant swimming to maintain buoyancy. This is not an external feature but a defining biological trait.
Size
Adults typically range from 30-50 cm (12-20 inches) in length, with a maximum recorded length of about 60 cm (24 inches) and weight of 3.4 kg (7.5 lbs).
Habitat
- Tipo de água
- saltwater
- Profundidade
- Typically found in surface waters down to 200 meters (650 feet), but can descend to 1000 meters (3,300 feet) during overwintering.
- Ambiente
- Pelagic, schooling fish found in temperate and cold-temperate coastal and offshore waters of the North Atlantic Ocean. Inhabits continental shelf and slope waters.
- Distribuição geográfica
- North Atlantic Ocean, including the Mediterranean Sea, Black Sea, North Sea, Baltic Sea, and along the eastern coast of North America from Labrador to North Carolina, and the western coast of Europe from Norway to Mauritania.
Informações sobre aquário
- Nível de cuidado: expert
- Temperamento: aggressive
- Alimentação: carnivore
- Tamanho mínimo do aquário: Not suitable for home aquaria due to size, schooling behavior, and migratory needs. Requires extremely large, specialized public aquarium exhibits.
- Temperatura: 10-20°C (50-68°F)
- Nível de pH: 7.8-8.4
- Dureza da água: High (marine salinity)
- Compatibilidade: Only with other large, fast-swimming pelagic species in very large, specialized exhibits. Highly predatory towards smaller fish.
- Requisitos especiais: Requires vast open water, strong currents, and a constant supply of live or fresh frozen prey. Extremely sensitive to confinement and stress. Not recommended for private aquarists.
Informações no ambiente natural
- Estado de conservação: least concern
- Sazonalidade: Seasonal availability varies by region, typically abundant in coastal waters during spring and summer months as they migrate to feeding and spawning grounds.
- Preço de mercado: Varies significantly by region, season, and market demand, but generally a moderately priced, accessible fish.
- Importância comercial: high
- Sabor: Rich, oily, distinctively savory, and robust flavor.
- Textura: Firm, flaky, and moist.
- Métodos de preparo: Grilling, Baking, Smoking, Pan-frying, Pickling, Canning
- Valor nutricional: Excellent source of Omega-3 fatty acids (EPA and DHA), Vitamin D, Vitamin B12, selenium, and protein. High fat content.
Fatos principais
Constant Swimmersbehavior
Atlantic Mackerel lack a swim bladder, meaning they must constantly swim to maintain buoyancy and respire, a characteristic known as ram ventilation.
Massive Schoolsbehavior
They form enormous schools, sometimes miles long, which can be observed near the surface, especially during feeding and spawning migrations.
Fast Growthevolution
Atlantic Mackerel are relatively fast-growing fish, reaching sexual maturity around 2-3 years of age.
Migratory Journeysbehavior
These fish undertake extensive seasonal migrations, traveling thousands of kilometers between their overwintering grounds and their summer feeding and spawning areas.
Ecological Importanceinteresting
As a mid-trophic level predator and prey species, Atlantic Mackerel are a critical link in the marine food web, supporting larger predators like tuna, sharks, and marine mammals.
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. They do not possess venomous spines or teeth that pose a significant threat. Their scales are small and smooth, so cuts are unlikely from handling the body.
Espécies similares
Chub Mackerel
Scomber colias (formerly Scomber japonicus)
Chub mackerel have a swim bladder (Atlantic mackerel do not), and their dark dorsal markings are less distinct, often appearing as spots or blotches below the lateral line, sometimes forming a reticulated pattern. They also have larger eyes relative to their head size.
Spanish Mackerel
Scomberomorus maculatus
Spanish mackerel have distinct golden or bronze spots on their sides and lack the wavy bars of the Atlantic mackerel. They also have a more elongated body and a prominent lateral line that dips sharply below the second dorsal fin.
King Mackerel
Scomberomorus cavalla
King mackerel are much larger, lack the wavy bars, and have a silvery body with a greenish back. Juveniles may have spots, but adults typically do not. Their lateral line also dips sharply.
Classificação científica
- Reino
- Animalia
- Filo
- Chordata
- Classe
- Actinopterygii
- Ordem
- Scombriformes
- Família
- Scombridae
- Gênero
- Scomber
- Espécie
- Scomber scombrus
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