 | This article relies largely or entirely on a single source .(June 2014) |
| Discus tetra | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Characiformes |
| Family: | Characidae |
| Genus: | Brachychalcinus |
| Species: | B. orbicularis |
| Binomial name | |
| Brachychalcinus orbicularis Valenciennes, 1850 | |
Brachychalcinus orbicularis, or the discus tetra, is an omnivorous characin found in rivers, creeks, and tributaries in tropical South America. [1]
The discus throw, also known as disc throw, is a track and field event in which an athlete throws a heavy disc—called a discus—in an attempt to mark a farther distance than their competitors. It is an ancient sport, as demonstrated by the fifth-century-BC Myron statue Discobolus. Although not part of the current pentathlon, it was one of the events of the ancient Greek pentathlon, which can be dated back to at least 708 BC, and it is part of the modern decathlon.
Characidae, the characids or characins is a family of freshwater subtropical and tropical fish, belonging to the order Characiformes. The name "characins" is the historical one, but scientists today tend to prefer "characids" to reflect their status as a by and large monophyletic group at family rank. To arrive there, this family has undergone much systematic and taxonomic change. Among those fishes that remain in the Characidae for the time being are the tetras, comprising the very similar genera Hemigrammus and Hyphessobrycon, as well as a few related forms such as the cave and neon tetras. Fish of this family are important as food and also include popular aquarium fish species.
Symphysodon is a genus of cichlids native to the Amazon river basin in South America. Due to their distinctive shape, calm behavior, many bright colors and patterns, and dedicated parenting techniques, discus are popular as freshwater aquarium fish, and their aquaculture in several countries in Asia is a major industry. They are sometimes referred to as pompadour fish. The discus fish has attracted a cult following of collectors and has created a multimillion dollar international industry complete with shows, competitions, and reputable online breeders.
The neon tetra is a Freshwater fish of the characin family of order Characiformes. The type species of its genus, it is native to blackwater and clearwater streams in the Amazon basin of South America. Its bright colouring makes the fish visible to conspecifics in the dark blackwater streams, and is also the main reason for its popularity among freshwater fish hobbyists, with neon tetras being one of the most widely kept tropical fish in the world.
Terrestrial Trunked Radio, a European standard for a trunked radio system, is a professional mobile radio and two-way transceiver specification. TETRA was specifically designed for use by government agencies, emergency services, for public safety networks, rail transport staff for train radios, transport services and the military. TETRA is the European version of trunked radio, similar to Project 25.
Tetra is the common name of many small freshwater characiform fishes. Tetras come from Africa, Central America, and South America, belonging to the biological family Characidae and to its former subfamilies Alestidae and Lebiasinidae. The Characidae are distinguished from other fish by the presence of a small adipose fin between the dorsal and caudal fins. Many of these, such as the neon tetra, are brightly colored and easy to keep in captivity. Consequently, they are extremely popular for home aquaria.
In human anatomy, the orbicularis oris muscle is a complex of muscles in the lips that encircles the mouth. It is not a true sphincter, as was once thought, as it is actually composed of four independent quadrants that interlace and give only an appearance of circularity.
Tetra Brik is a brand name for a carton package produced by the Swedish packaging company Tetra Pak. Its shape is cubic or cuboid, and it is available with or without various different caps. The Tetra Brik is the best-known and most sold package in the Tetra Pak packaging family, to the extent that Tetra Brik is sometimes mistaken for the brand name. The Tetra Brik comes in either chilled or ambient package types.
The European pond turtle, also called commonly the European pond terrapin and the European pond tortoise, is a species of long-living freshwater turtle in the family Emydidae. The species is endemic to the Western Palearctic.
The orbicularis oculi is a muscle in the face that closes the eyelids. It arises from the nasal part of the frontal bone, from the frontal process of the maxilla in front of the lacrimal groove, and from the anterior surface and borders of a short fibrous band, the medial palpebral ligament.
Community aquaria are tanks that are designed to contain more than one species of fish. Most commonly they include a variety of species that do not normally occur together in nature, for example angelfish from Brazil, swordtails from Mexico, and gouramis from South East Asia. The aim of such communities is to bring together fish that are compatible in temperament and water requirements, while using their different colours and behaviors to add interest and entertainment value.
Aquarium fish feed is plant or animal material intended for consumption by pet fish kept in aquariums or ponds. Fish foods normally contain macronutrients, trace elements and vitamins necessary to keep captive fish in good health. Approximately 80% of fishkeeping hobbyists feed their fish exclusively prepared foods that most commonly are produced in flake, pellet or tablet form. Pelleted forms, some of which sink rapidly, are often used for larger fish or bottom feeding species such as loaches or catfish. Some fish foods also contain additives such as sex hormones or beta carotene to artificially enhance the color of ornamental fish.
The zona orbicularis or annular ligament is a ligament on the neck of the femur formed by the circular fibers of the articular capsule of the hip joint. It is also known as the orbicular zone, ring ligament, and zonular band.
Herbert Richard Axelrod was an American tropical fish expert, a publisher of pet books, and an entrepreneur. In 2005 he was sentenced in U.S. court to 18 months in prison for tax fraud.
Tetra Pak is a multinational food packaging and processing company headquartered in Switzerland. The company offers packaging, filling machines and processing for dairy, beverages, cheese, ice cream and prepared food, including distribution tools like accumulators, cap applicators, conveyors, crate packers, film wrappers, line controllers and straw applicators.
Boeseman's rainbowfish, also known as the Boesemani rainbowfish, is a species of fish in the family Melanotaeniidae.
Brachychalcinus is a genus of characins found in tropical South America, with five currently described species:
Project Piaba is a fishery initiative located on the Rio Negro tributary of the Amazon River. The program both promotes and researches sustainable aquarium pet fish collection and its impact on the environment. The name of the project comes from the Brazilian Portuguese word, piaba, which means "little fish", referring specifically to the cardinal tetra. Project Piaba is an ongoing project with annual research expeditions to the Rio Negro region. Because of the sustainable nature of the project, its slogan is "Buy a Fish, Save a Tree!"
https://www.iucnredlist.org/species/175960637/175960674
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