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Anchoa tricolor, commonly known as Manjuba-flecha or Shortfinger Anchovy, is a small, schooling fish belonging to the family Engraulidae. It is characterized by its slender, elongated body and a prominent silvery stripe along its flanks. This species is an important component of coastal marine ecosystems, serving as a forage fish for larger predators.
Características físicas
- Formato do corpo
- elongated
- Coloração
- Dorsal surface greenish-blue to brownish, flanks silvery with a distinct, iridescent silvery stripe extending from the operculum to the caudal fin base. Ventral surface silvery-white. Fins are hyaline (transparent).
- Tipo de escama
- cycloid
- Posição da boca
- inferior
- Características distintivas
- Long, pointed snout extending beyond the lower jaw, Large eyes, Prominent silvery lateral stripe, Short pectoral fins
- Nadadeira dorsal
- Single, short-based dorsal fin located mid-body, typically with 12-15 soft rays.
- Nadadeira caudal
- Deeply forked caudal fin.
- Nadadeira peitoral
- Short, located low on the body, with 11-13 soft rays.
- Nadadeiras características
- Anal fin relatively long, originating below or slightly behind the dorsal fin base, with 20-25 soft rays. Pelvic fins small, abdominal.
Dicas de identificação
Snout
The snout is notably pointed and projects beyond the tip of the lower jaw, a key characteristic of the genus Anchoa.
Silvery Stripe
A prominent, iridescent silvery stripe runs along the flank from the gill cover to the caudal fin base. This stripe is often more distinct than in some other anchovy species.
Pectoral Fin Length
The pectoral fins are relatively short, not reaching the pelvic fin origin, which helps distinguish it from species like Anchoa hepsetus (Striped Anchovy) where the pectoral fin is longer.
Anal Fin Origin
The origin of the anal fin is typically below or slightly behind the posterior base of the dorsal fin.
Habitat
- Tipo de água
- saltwater
- Profundidade
- Typically found in shallow coastal waters, estuaries, and lagoons, from the surface down to about 50 meters.
- Ambiente
- Pelagic-neritic, schooling in open water over sandy or muddy bottoms, often near mangroves or seagrass beds.
- Distribuição geográfica
- Western Atlantic Ocean, from the coast of North Carolina (USA) south to southeastern Brazil, including the Gulf of Mexico and the Caribbean Sea.
Informações sobre aquário
- Nível de cuidado: expert
- Temperamento: peaceful
- Alimentação: filter_feeder
- Tamanho mínimo do aquário: 500 gallons (for a schooling group)
- Temperatura: 22-28°C (72-82°F)
- Nível de pH: 8.1-8.4
- Dureza da água: 8-12 dKH
- Compatibilidade: Best kept in species-specific tanks or with very small, peaceful planktivores. Avoid aggressive or predatory species.
- Requisitos especiais: Requires a very large tank with strong filtration and excellent water quality. Needs constant planktonic food source. Not typically suitable for home aquaria due to specialized feeding and schooling needs.
Informações no ambiente natural
- Estado de conservação: least concern
- Sazonalidade: Present year-round in its range, with peak abundance often observed during warmer months, correlating with plankton blooms.
- Preço de mercado: Low (primarily used as bait or for fishmeal)
- Importância comercial: medium
- Sabor: Mild, slightly oily
- Textura: Delicate, soft
- Métodos de preparo: Fried, Pickled, Used in fish sauces
- Valor nutricional: Rich in Omega-3 fatty acids, protein, and calcium (if consumed whole).
Fatos principais
Forage Fishbehavior
Anchoa tricolor plays a crucial role as a forage fish, forming large schools that are a primary food source for numerous predatory fish, seabirds, and marine mammals in its ecosystem.
Estuarine Dependencebehavior
This species frequently utilizes estuaries and coastal lagoons as nursery grounds, highlighting the importance of these habitats for its life cycle and population dynamics.
Nocturnal Spawningbehavior
Spawning in Anchoa tricolor typically occurs at night, with eggs being pelagic (free-floating) and developing rapidly.
Rapid Growthinteresting
Like many small pelagic fish, Anchoa tricolor exhibits rapid growth and a relatively short lifespan, often completing its life cycle within 1-2 years.
Informações de segurança
Seguro- Nível de segurança: safe
- Venenoso: Não
- Comestibilidade: edible
- Observações de manuseio: No specific handling precautions are required. These are small, harmless fish. Handle gently if caught for bait or observation.
Espécies similares
Striped Anchovy
Anchoa hepsetus
Anchoa hepsetus has a longer pectoral fin that extends beyond the pelvic fin origin, and its silvery stripe is often less distinct or narrower than in A. tricolor. The anal fin origin in A. hepsetus is usually well behind the dorsal fin base.
Bay Anchovy
Anchoa mitchilli
Anchoa mitchilli is generally smaller, has a shorter, blunter snout that barely extends beyond the lower jaw, and its silvery stripe is often faint or absent, especially in preserved specimens. Its body is also typically deeper.
Common Anchovy
Engraulis encrasicolus
While not directly overlapping in primary range, Engraulis encrasicolus (found in the Eastern Atlantic and Mediterranean) has a more robust body, a shorter snout, and a less pronounced silvery stripe. Its overall body shape is less slender than Anchoa tricolor.
Classificação científica
- Reino
- Animalia
- Filo
- Chordata
- Classe
- Actinopterygii
- Ordem
- Clupeiformes
- Família
- Engraulidae
- Gênero
- Anchoa
- Espécie
- Anchoa tricolor
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