Der Palembang-Kugelfisch (Dichotomyctere ocellatus, Syn.: Tetraodon biocellatus, T. steindachneri) ist in Südostasien (Thailand, Malaysia, Sumatra und Kalimantan) in Süßgewässern beheimatet. Die sechs bis acht Zentimeter groß werdenden Fische ernähren sich von Schnecken und anderen bodenbewohnenden wirbellosen Tieren.
Palembang-Kugelfische haben eine dunkle Oberseite mit einem Muster aus gelbgrünen Kreisen, Punkten und gebogenen Linien, die Unterseite ist weiß.
Flossenformel: Dorsale 11–13, Anale 13–15
Er benötigt 22 bis 26 °C warmes Wasser mit einem pH-Wert von 7 bis 8. Er gilt als Einzelgänger und ist nur bedingt für Gesellschaftsaquarien geeignet, weil er im Alter aggressiv wird. Er liebt Lebendfutter (z. B. Schnecken), nimmt jedoch auch Frostfutter an. Er sollte generell in einem Artaquarium gehalten werden. Trockenfutter wird nur sehr widerwillig und erst nach Gewöhnung gefressen. Wichtig bei der Fütterung ist die häufige Gabe von hartschaligem Futter (z. B. Schnecken, Muscheln oder Artemia). Sonst kann es zu einer Maulsperre infolge nicht abgewetzter Zähne kommen. Deshalb sollte man in einem Becken parallel eine Schneckenzucht halten. Junge Palembang-Kugelfische überfressen sich häufig, was dazu führt, dass sie sich mit zusammengelegtem Schwanz und Flossen auf den Boden legen und sich eine Zeit lang nicht mehr bewegen. Die Nachzucht vom Palembang-Kugelfisch ist bist jetzt noch nicht gelungen.
Der Palembang-Kugelfisch (Dichotomyctere ocellatus, Syn.: Tetraodon biocellatus, T. steindachneri) ist in Südostasien (Thailand, Malaysia, Sumatra und Kalimantan) in Süßgewässern beheimatet. Die sechs bis acht Zentimeter groß werdenden Fische ernähren sich von Schnecken und anderen bodenbewohnenden wirbellosen Tieren.
Palembang-Kugelfische haben eine dunkle Oberseite mit einem Muster aus gelbgrünen Kreisen, Punkten und gebogenen Linien, die Unterseite ist weiß.
Flossenformel: Dorsale 11–13, Anale 13–15
Dichotomyctere ocellatus (syn. Tetraodon biocellatus), commonly the figure 8 puffer or eyespot puffer, is a pufferfish found in freshwater in Southeast Asia. It is known from the lower reaches of the Mekong (Cambodia), the Peninsular Malaysia as well as Borneo (Sarawak, Kalimantan).[1][3]
Figure 8 puffers grow to about 8 cm (3.1 in) total length (TL).[3] They are colourful fish, with greenish yellow patterns on their backs. These patterns vary greatly from fish to fish, but the markings either side of the caudal fin resemble the number eight, or eye-spots (earning the species another common name as "eyespot puffer"). Figure 8 puffers are relatively peaceful among Tetraodontidae, and have been kept successfully with other fish such as bumblebee gobies and mollies, but as with all pufferfish there is a risk that tankmates will not be tolerated.
Like all members of its family, the figure 8 puffer is capable of inflating itself with water or air when stressed or otherwise frightened.
Like the closely related green pufferfish, the figure 8 exhibits euryhalinity, and undergoes epithelial remodeling and changes in the kidneys and gills when exposed to changes in salinity. Accordingly, the figure 8 puffer is often mistakenly regarded as an entirely freshwater fish, and has considerable resistance to freshwater exposure. In a marine environment, it exhibits typical saltwater fish morphological features in its gills, allowing it to secrete sodium chloride across the gill epithelium like a typical saltwater fish. However, acclimated to freshwater, the figure 8 puffer will exhibit specialized cells that do not match any gill ion-regulating cell of a freshwater fish. The other fish known to have these types of cells is the Mozambique tilapia (O. mossambicus), but this is a saltwater fish.[4]
In captivity, figure 8 puffers require a 15 US gallon tank with temperatures between 24 °C and 28 °C. They are sensitive to nitrites and nitrates and must be introduced into a fully cycled aquarium. Over-filtration is recommended as well as frequent partial water changes. Water pH will reflect the brackish environment to which these fish are best suited; the addition of marine salt will buffer the pH to a range between 7.8 and 8.3. With a salinity of between 1.005 and 1.008 specific gravity (S.G.), the lifespan of this species has been as long as 15 years.[5] As with all puffer fish, they require a complex aquarium set up consisting of many nooks and crannies. This helps figure 8 puffers to behave as they would in nature, and reduce boredom.
Pufferfish are classed as molluscivores and feed mainly on benthic organisms which may include mussels, cockles, oysters and krill, though some puffers will take other foods, such as flake, it is not recommended that their primary food is flake. Their teeth, a beak formed from two plates, are capable of crushing shells in order to feed on prey. In captivity many fishkeepers feed snails as a substitute for the aforementioned foods as snails help keep the beak trim; it would otherwise be susceptible to overgrowth.
Dichotomyctere ocellatus (syn. Tetraodon biocellatus), commonly the figure 8 puffer or eyespot puffer, is a pufferfish found in freshwater in Southeast Asia. It is known from the lower reaches of the Mekong (Cambodia), the Peninsular Malaysia as well as Borneo (Sarawak, Kalimantan).
El pez globo ocelado (Dichotomyctere ocellatus)[3] es una especie de pez actinopeterigio de agua dulce,[4] de la familia de los tetraodóntidos.[5] Especie usada en acuariofilia.
Con el cuerpo típico de los peces globo de agua dulce de su familia, la longitud máxima descrita fue de un macho de 15'3 cm.[4] Su coloración y su forma son muy llamativas. En los adultos es de color parda. Es en tonalidades verdes oscuras y amarillas jalonadas por manchas ribeteadas de amarillo. Su esperanza de vida es de aproximadamente tres o cuatro años, aunque si es cuidado en condiciones óptimas puede llegar hasta los cinco e incluso los seis.[6] Es una de las pocas especies de peces globo de agua dulce, con capacidad para aumentar de tamaño cuando se siente amenazado o asustado.
Se distribuye por ríos y lagos de Indochina, sobre todo en la cuenca del río Mekong,[7] así como en ríos de las islas de Malasia e Indonesia,[8] donde vive en aguas tropicales desde los estuarios de los ríos hasta los tramos inferiores de flujo lento, con comportamiento demersal, nunca en aguas salobres.[4] Se comporta de forma agresiva con los de su misma especie.[4]
En libertad es carnívoro y se alimenta de caracoles y otros organismos bentónicos,[4] mientras que en cautividad es omnívoro alimentándose de larvas de mosquito, tubifex, artemia o alimento en escamas.[6] Una de las características por las que se le conoce a este pez, es su gran gusto por los caracoles, por lo que es un excelente controlador biológico de estas plagas.[6]
Portal:Acuariofilia. Contenido relacionado con Acuariofilia.El pez globo ocelado (Dichotomyctere ocellatus) es una especie de pez actinopeterigio de agua dulce, de la familia de los tetraodóntidos. Especie usada en acuariofilia.
Tetraodon biocellatus Tetraodon generoko animalia da. Arrainen barruko Tetraodontidae familian sailkatzen da.
Tetraodon biocellatus Tetraodon generoko animalia da. Arrainen barruko Tetraodontidae familian sailkatzen da.
O Baiacu biocelatus ou Baiacu figura 8, Tetraodon biocellatus, é um Baiacu dulcicola encontrado no Sudeste Asiático.
O Baiacu biocelatus chega até os 6 cms. São peixes coloridos, com riscas amarelo-esverdeadas nas suas costas. These patterns variam geralmente de peixe pra peixe, mais os ocelos que lembram um oito( o que da outro nome comum,'Baiacu figura 8'). Baiacus biocelatus são relativamente pacíficos diferentemente de outros tetraodontidae.Convivem muito bem com peixes como e Abelhinhas e molinésias, mas como todas as espécies de pufferfish há um risco de incompatibilidade dentro do tanque.
Assim como outros membros da família Tetraodontidae, O baiacu biocelatus é capaz de inflar,mas não o induza a isso,pois o estresse resultante pode matar o animal.
Baiacus são moluscívoros e comem muitos organismos bênticos incluindo mexilões, cardídeos, ostras e krill. Seus dentes em forma de bico, são capazes de quebrar as conchas de suas presas. Em cativeiro,muitos comem caramujos como um substituto dos moluscos de concha dura, ainda que isso mantenha a beak, ainda se mantém suscetíveis à gigantismo.
Em cativeiro, O baiacu biocelatus requer 15 galões americanos e a temperatura do aquário deve circular entre 24 °C e 28 °C. Eles são sensíveis aos nitritos e nitratos e muitos são introduzidos na ciclagem do aquário. Filtração forte é recomendada.O pH deve refletir a natureza salobra do local aonde esta espécie é encontrada; Deve-se adicionar sal marinho e deixar o ph entre 7.8 e 8.3. A salinidade é de 1.005 a 1.008 em gravidade específica (S.G.) .Respeitadas as exigências este peixe pode viver por mais de 15 anos.
Ebert, K. (2001), The Puffers of Fresh and Brackish Water, p 19. Aqualog, ISBN 393170260X.
O Baiacu biocelatus ou Baiacu figura 8, Tetraodon biocellatus, é um Baiacu dulcicola encontrado no Sudeste Asiático.
