Piau

Descrição

Leporinus is a diverse genus of characiform fish belonging to the family Anostomidae. These fish are commonly known as 'Piau' in Brazil and other South American countries. They are characterized by their elongated, cylindrical bodies, often with distinctive color patterns, including spots, bars, or stripes. Leporinus species are primarily herbivorous or omnivorous, feeding on a variety of plant matter, algae, and small invertebrates. They are found in a wide range of freshwater habitats across South America, from small streams to large rivers and floodplains. Many species are commercially important for food and are also popular among recreational anglers and aquarists.

Características físicas

Formato do corpo

elongated

Coloração

Highly variable among species, ranging from silvery-grey to yellowish or brownish, often with distinct dark spots, bars, or longitudinal stripes. Some species exhibit vibrant red or orange coloration, particularly on fins or ventral regions. Juveniles may have different patterns than adults.

Tipo de escama

cycloid

Posição da boca

subterminal

Características distintivas

Elongated, cylindrical body, Small, protractile mouth, Strong, chisel-like incisor teeth in the front of both jaws, typically 4-6 in the upper jaw and 4 in the lower jaw, used for scraping algae and biting off plant material., Often possess distinct dark spots, bars, or stripes on the body, which are key for species identification., Adipose fin present.

Nadadeira dorsal

Single, relatively short-based dorsal fin, typically with 10-12 rays.

Nadadeira caudal

Forked caudal fin.

Nadadeira peitoral

Paired pectoral fins, typically with 13-17 rays.

Nadadeiras características

Pelvic fins are abdominal. Anal fin is short, typically with 8-12 rays.

Dicas de identificação

Habitat

Tipo de água

freshwater

Profundidade

Typically found in shallow to moderate depths, often near submerged vegetation, rocks, or woody debris.

Ambiente

Inhabits a wide variety of freshwater environments including rivers, streams, lakes, and floodplains. They prefer areas with moderate to strong currents, clear water, and abundant submerged structures. Some species are rheophilic (current-loving).

Distribuição geográfica

Widely distributed across South America, including the Amazon, Orinoco, Paraná, Paraguay, and São Francisco river basins, as well as coastal drainages.

Informações sobre aquário

• Nível de cuidado: intermediate
• Temperamento: semi-aggressive
• Alimentação: omnivore
• Tamanho mínimo do aquário: 75 gallons (for smaller species, larger for bigger species)
• Temperatura: 22-28°C (72-82°F)
• Nível de pH: 6.0-7.5
• Dureza da água: 5-15 dGH
• Compatibilidade: Can be kept with other robust, similarly sized South American cichlids, large tetras, and catfish. Avoid keeping with very small or docile fish, as they may be harassed or eaten. Can be territorial, especially towards conspecifics.
• Requisitos especiais: Require a well-filtered tank with plenty of hiding places among rocks, driftwood, and sturdy plants. A sandy or fine gravel substrate is preferred. They are known jumpers, so a tight-fitting lid is essential. Provide a varied diet including high-quality flakes or pellets, spirulina, blanched vegetables, and occasional live or frozen foods.

Informações no ambiente natural

• Estado de conservação: least concern
• Sazonalidade: Spawning typically occurs during the rainy season, with increased fishing activity during this period in some regions.
• Preço de mercado: Varies significantly by species and region, generally moderate.
• Importância comercial: medium
• Sabor: Mild, slightly sweet
• Textura: Firm, flaky white flesh
• Métodos de preparo: Grilled, Fried, Baked, 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

Anostomidae

Gênero

Leporinus

Espécie

spp.

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