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Trichogaster trichopterus, commonly known as the Blue Gourami or Three Spot Gourami, is a labyrinth fish native to Southeast Asia. It is a popular aquarium fish due to its attractive coloration, relatively peaceful temperament, and hardiness. The 'Blue Gourami' specifically refers to a color morph of this species, characterized by a vibrant blue body with two distinct dark spots on its flanks, in addition to the eye which forms a 'third spot'. Like other anabantoids, it possesses a labyrinth organ, allowing it to breathe atmospheric air, which enables it to survive in oxygen-depleted waters.
Características físicas
- Formato do corpo
- compressed
- Coloração
- The 'Blue Gourami' morph exhibits a iridescent blue body, often with darker blue or black mottling. Two prominent dark spots are typically present on each flank: one centrally located on the body and another at the caudal peduncle. The eye forms a 'third spot'. Fins are often tinged with blue and may have orange or red margins, particularly in males. Other cultivated morphs include Gold (yellow-orange), Opaline (marbled blue and white), and Platinum (pale, almost white).
- Tipo de escama
- ctenoid
- Posição da boca
- superior
- Características distintivas
- Two distinct dark spots on the body (plus the eye, making 'three spots')., Elongated, filamentous pelvic fins that act as tactile organs., Labyrinth organ for breathing atmospheric air.
- Nadadeira dorsal
- Single, long-based dorsal fin, typically with 11-16 spines and 8-11 soft rays. Males often have a more pointed dorsal fin.
- Nadadeira caudal
- Rounded to slightly emarginate caudal fin.
- Nadadeira peitoral
- Large, fan-like pectoral fins.
- Nadadeiras características
- Pelvic fins are modified into long, thin, thread-like feelers, which are used to explore their environment and for courtship displays.
Dicas de identificação
Body Coloration
Look for the iridescent blue body with two distinct dark spots on the flanks. The eye completes the 'three spot' pattern.
Pelvic Fins
Observe the long, thread-like pelvic fins, which are characteristic of gouramis and used for tactile exploration.
Dorsal Fin Shape
Males typically have a longer, more pointed dorsal fin compared to the shorter, rounded dorsal fin of females.
Size
Adults can reach up to 15 cm (6 inches) in total length, though aquarium specimens are often slightly smaller.
Habitat
- Tipo de água
- freshwater
- Profundidade
- Typically found in shallow, slow-moving or stagnant waters.
- Ambiente
- Inhabits swamps, canals, ditches, rice paddies, and slow-flowing rivers with dense vegetation. Prefers areas with abundant aquatic plants and submerged roots, which provide cover and foraging opportunities.
- Distribuição geográfica
- Native to Southeast Asia, specifically the Mekong basin, Chao Phraya basin, and various islands of Indonesia (Sumatra, Borneo, Java). It has been introduced to many other tropical and subtropical regions worldwide due to its popularity in aquaculture and the aquarium trade.
Informações sobre aquário
- Nível de cuidado: beginner
- Temperamento: semi-aggressive
- Alimentação: omnivore
- Tamanho mínimo do aquário: 75 liters (20 gallons) for a single specimen, larger for groups or community tanks.
- Temperatura: 22-28 °C (72-82 °F)
- Nível de pH: 6.0-8.0
- Dureza da água: 5-19 dGH
- Compatibilidade: Generally compatible with other peaceful to semi-aggressive community fish of similar size. Avoid fin-nippers or overly aggressive species. Males can be territorial towards each other and sometimes towards other labyrinth fish.
- Requisitos especiais: Requires a well-planted aquarium with plenty of hiding spots and surface vegetation. A tight-fitting lid is essential as they are known to jump and need access to a layer of warm, humid air above the water surface to properly utilize their labyrinth organ. Avoid strong water currents.
Informações no ambiente natural
- Estado de conservação: least concern
- Sazonalidade: Breeds year-round in tropical climates, with increased activity during rainy seasons when food is abundant.
- Preço de mercado: Low to moderate, depending on size and specific color morph.
- Importância comercial: high
- Sabor: Mild, slightly earthy.
- Textura: Flaky, tender.
- Métodos de preparo: fried, steamed, grilled, curried
- Valor nutricional: Good source of protein and omega-3 fatty acids.
Fatos principais
Labyrinth Organbehavior
Trichogaster trichopterus possesses a specialized respiratory organ called the labyrinth organ, which allows it to breathe atmospheric air directly from the surface. This adaptation enables it to survive in oxygen-poor waters where other fish might perish.
Bubble Nest Buildersbehavior
Males of this species construct elaborate bubble nests at the water surface to house their eggs. They meticulously guard the nest and fry until they are free-swimming.
Tactile Pelvic Finsbehavior
Their long, thread-like pelvic fins are highly sensitive and are used as tactile organs to explore their environment, locate food, and communicate with other fish.
Color Morphsinteresting
Through selective breeding, numerous color morphs of Trichogaster trichopterus have been developed for the aquarium trade, including the Blue, Gold, Opaline, and Platinum Gouramis, all originating from the same wild species.
Historical Taxonomyevolution
Historically, the genus Trichogaster was often referred to as Colisa, and some older literature or common names might still reflect this. However, current taxonomy places the larger gouramis like the Blue Gourami in Trichogaster, while the smaller Dwarf Gourami is in Trichopodus (formerly Colisa).
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 and injury to the fish. They do not possess venomous spines.
Espécies similares
Pearl Gourami
Trichopodus leerii
Distinguished by its pearlescent spots covering the body and fins, and a distinct black line running from the mouth to the caudal fin. Lacks the two prominent dark spots of T. trichopterus.
Kissing Gourami
Helostoma temminckii
Possesses thick, fleshy lips used for 'kissing' (mouth-fighting or grazing algae). Body shape is generally deeper and more compressed, and coloration is typically pale pink or green, lacking the distinct spots of T. trichopterus.
Dwarf Gourami
Trichogaster lalius (formerly Colisa lalia)
Much smaller in size (up to 5 cm), with distinct vertical red and blue stripes. Lacks the prominent dark spots and overall body shape of T. trichopterus.
Classificação científica
- Reino
- Animalia
- Filo
- Chordata
- Classe
- Actinopterygii
- Ordem
- Anabantiformes
- Família
- Osphronemidae
- Gênero
- Trichogaster
- Espécie
- trichopterus
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