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Lebiasina stricta, commonly known as Yarara, is a small to medium-sized freshwater fish belonging to the family Lebiasinidae. It is characterized by its elongated, fusiform body and a distinctive color pattern. This species is an active swimmer, typically found in clear, flowing waters. Its ecological role often involves consuming small invertebrates and detritus, contributing to nutrient cycling in its habitat. While not a prominent commercial fish, it plays a role in local ecosystems and can be of interest to aquarists due to its unique appearance and behavior.
Características físicas
- Formato do corpo
- elongated
- Coloração
- Generally silvery to brownish-gold, often with a distinct dark lateral stripe extending from the operculum to the caudal fin base. Fins are typically hyaline (clear) or slightly yellowish. Some individuals may exhibit reddish or orange hues, particularly during breeding season.
- Tipo de escama
- cycloid
- Posição da boca
- terminal
- Características distintivas
- Elongated, slender body, Small, conical teeth, Adipose fin present, Dark lateral stripe
- Nadadeira dorsal
- Single, relatively short dorsal fin located mid-body, typically with 9-11 rays.
- Nadadeira caudal
- Forked caudal fin, moderately sized.
- Nadadeira peitoral
- Pectoral fins are small and positioned low on the body.
- Nadadeiras características
- Presence of a small adipose fin between the dorsal and caudal fins, characteristic of the family Lebiasinidae.
Dicas de identificação
Body Shape
Look for an elongated, torpedo-shaped body, which is characteristic of the genus Lebiasina.
Lateral Stripe
A prominent dark lateral stripe running from the gill cover to the tail is a key identifier for Lebiasina stricta.
Adipose Fin
The presence of a small, fleshy adipose fin between the dorsal and caudal fins confirms its family (Lebiasinidae) and helps differentiate it from other characins.
Mouth
Its terminal mouth with small, conical teeth is adapted for its omnivorous diet.
Habitat
- Tipo de água
- freshwater
- Profundidade
- Typically found in shallow to moderate depths, often near the surface or in mid-water.
- Ambiente
- Clear, flowing rivers, streams, and associated tributaries. Prefers areas with rocky or sandy substrates, often with submerged vegetation or riparian cover. Can also be found in calmer pools adjacent to faster currents.
- Distribuição geográfica
- Native to South America, specifically found in river basins of Venezuela, Colombia, and potentially parts of Brazil. Its distribution is primarily within the Orinoco and Amazon river systems.
Informações sobre aquário
- Nível de cuidado: intermediate
- Temperamento: semi-aggressive
- Alimentação: omnivore
- Tamanho mínimo do aquário: 100 liters
- Temperatura: 22-26°C
- Nível de pH: 6.0-7.5
- Dureza da água: 5-15 dGH
- Compatibilidade: Best kept with similarly sized, robust fish. Can be territorial, especially during breeding. Avoid very small or overly aggressive tank mates.
- Requisitos especiais: Requires a well-oxygenated tank with good water flow. Plenty of hiding spots among plants and driftwood are beneficial. A secure lid is essential as they are known jumpers.
Informações no ambiente natural
- Estado de conservação: least concern
- Sazonalidade: Breeding activity typically increases during the rainy season, but they are present year-round in their natural habitats.
- Preço de mercado: Low
- Importância comercial: low
- Sabor: Mild, slightly earthy
- Textura: Firm, flaky
- Métodos de preparo: Fried, Grilled, Stewed
- Valor nutricional: Good source of protein and omega-3 fatty acids, typical for freshwater fish.
Fatos principais
Active Swimmerbehavior
Lebiasina stricta is known for its active swimming behavior, often seen darting through currents in its natural habitat.
Adipose Fininteresting
The presence of a small adipose fin is a key characteristic that places it within the family Lebiasinidae, distinguishing it from many other characins.
Habitat Preferencebehavior
This species thrives in clear, well-oxygenated waters with good flow, indicating its adaptation to riverine environments.
Omnivorous Dietbehavior
Its diet consists of a mix of small invertebrates, algae, and detritus, making it an important part of the food web in its ecosystem.
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 minimize stress to the fish. They are not venomous and do not possess sharp spines that pose a significant threat. Handle gently to avoid damaging their scales or fins.
Espécies similares
Lebiasina bimaculata
Lebiasina bimaculata
L. bimaculata typically has two distinct dark spots on its flanks, whereas L. stricta has a continuous lateral stripe. L. bimaculata also tends to be slightly more robust in body shape.
Lebiasina melanoguttata
Lebiasina melanoguttata
L. melanoguttata is distinguished by numerous small, dark spots scattered over its body, lacking the prominent lateral stripe of L. stricta.
Other Characins
Various Characidae species
Many characins lack an adipose fin or have different body proportions and fin configurations. The combination of an elongated body, lateral stripe, and adipose fin is specific to Lebiasina stricta among similar-looking species in its range.
Classificação científica
- Reino
- Animalia
- Filo
- Chordata
- Classe
- Actinopterygii
- Ordem
- Characiformes
- Família
- Lebiasinidae
- Gênero
- Lebiasina
- Espécie
- stricta
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