Lambari

Descrição

Lambaris, belonging to the genus Astyanax, are a diverse group of small to medium-sized characins native to freshwater systems throughout Central and South America. They are characterized by their generally silvery bodies, often with a distinct humeral spot and a caudal peduncle spot. These fish are highly adaptable and play a significant ecological role as both prey and predators in their respective ecosystems. Their schooling behavior is a prominent feature, especially in open water. The genus Astyanax is exceptionally speciose, with over 150 recognized species, making a generalized description challenging, but common morphological and ecological traits unite them.

Características físicas

Formato do corpo

compressed

Coloração

Predominantly silvery, often with iridescent reflections. Many species exhibit a distinct dark humeral spot (behind the operculum) and a dark spot on the caudal peduncle. Fins are typically hyaline (clear) to yellowish, sometimes with reddish tints, especially in males during breeding season.

Tipo de escama

cycloid

Posição da boca

terminal

Características distintivas

Adipose fin present, Lateral line complete, Small, conical teeth in two rows on the premaxilla, and a single row on the dentary, Often a dark humeral spot (shoulder spot), Often a dark caudal peduncle spot

Nadadeira dorsal

Single dorsal fin, typically with 10-11 rays, located mid-body.

Nadadeira caudal

Forked caudal fin, symmetrical lobes.

Nadadeira peitoral

Paired pectoral fins, typically with 11-13 rays.

Nadadeiras características

Anal fin is relatively long, with 20-30 rays depending on the species. Pelvic fins are small, abdominal in position.

Dicas de identificação

Habitat

Tipo de água

freshwater

Profundidade

Typically found in shallow to moderate depths, often near the surface or in the water column.

Ambiente

Highly adaptable, inhabiting a wide range of freshwater environments including rivers, streams, lakes, lagoons, and even temporary pools. They prefer areas with moderate to slow currents, often associated with submerged vegetation, riparian vegetation, or rocky substrates. Some species are found in clear waters, while others tolerate turbid conditions.

Distribuição geográfica

Widespread throughout Central and South America, from Mexico south to Argentina. They are particularly abundant in the major river basins, including the Amazon, Paraná, Orinoco, and São Francisco.

Informações sobre aquário

• Nível de cuidado: beginner
• Temperamento: peaceful
• Alimentação: omnivore
• Tamanho mínimo do aquário: 75 liters (20 gallons) for a small school
• Temperatura: 22-28°C (72-82°F)
• Nível de pH: 6.0-7.5
• Dureza da água: 5-15 dGH
• Compatibilidade: Generally compatible with other peaceful, similarly sized community fish. Avoid housing with very small fry or extremely aggressive species.
• Requisitos especiais: Requires a well-filtered tank with ample swimming space. Benefits from live plants and driftwood for cover. Schooling species, so keep in groups of 6 or more to reduce stress and encourage natural behavior.

Informações no ambiente natural

• Estado de conservação: least concern
• Sazonalidade: Reproduction typically occurs during the rainy season (spring/summer in the Southern Hemisphere), when water levels rise and food availability increases. They are present year-round in most habitats.
• Preço de mercado: Low (primarily for bait or local consumption)
• Importância comercial: low
• Sabor: Mild, slightly sweet
• Textura: Delicate, flaky
• Métodos de preparo: Fried (whole), Grilled, Stewed
• Valor nutricional: Good source of protein and omega-3 fatty acids.

Fatos principais

Espécies similares

Classificação científica

Reino

Animalia

Filo

Chordata

Classe

Actinopterygii

Ordem

Characiformes

Família

Characidae

Gênero

Astyanax

Espécie

spp. (numerous species)

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