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Siamese Algae-eater
The Siamese algae-eater (''Crossocheilus oblongus'') is a species of freshwater fish in the carp family, Cyprinidae. This bottom-dwelling tropical fish is found in mainland Southeast Asia, including the Chao Phraya and Mekong basins as well as the Malay Peninsula. Its natural habitats are streams and rivers as well as flooded forests during the rainy season. The Siamese algae-eater should not be confused with the flying fox (''Epalzeorhynchos kalopterus'') or the false siamensis (''Garra cambodgiensis''), lacking the distinctive black bands of the former. Description The Siamese algae-eater has a black horizontal stripe extending from nose to tail. The stripe can quickly fade to camouflage the fish against its surroundings, which is observed during fights or stress. Genuine ''Crossocheilus siamensis'', without maxillary barbels and with deeply fringed V-shaped upper lip are rarely encountered in the aquarium trade. Siamese algae-eaters can grow up to 15 centimetres (6 inch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinrich Kuhl
Heinrich Kuhl (17 September 1797 – 14 September 1821) was a German people, German naturalist and zoologist. Kuhl was born in Hanau (Hesse, Germany). Between 1817 and 1820, he was the assistant of professor Th. van Swinderen, docent natural history at the University of Groningen in Groningen (the Netherlands). In 1817, he published a monograph on bats, and in 1819, he published a survey of the parrots, ''Conspectus psittacorum''. He also published the first monograph on the petrels, and a list of all the birds illustrated in Edme-Louis Daubenton, Daubenton's ''Planches Enluminées'' and with his friend Johan Coenraad van Hasselt (1797–1823) ''Beiträge zur Zoologie und vergleichenden Anatomie'' ("Contributions to Zoology and Comparative Anatomy") that were published at Frankfurt-am-Main, 1820. In 1820, he became assistant to Coenraad Jacob Temminck at the Leiden Rijksmuseum van Natuurlijke Historie. He then travelled to Java (island), Java, then part of the colonial Netherla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audouinella
''Audouinella'', also known as black algae, is a widespread genus of red algae, found in marine and freshwater environments. The form known as "''black brush algae''" (or "''black beard algae''", ''BBA'' for short) is a particular nuisance in aquaria, since most algae eater fish and invertebrates avoid it. Description J.B. Bory de Saint-Vincent named the genus in 1823, in honour of his co-editor in the ''Dictionnaire Classique d'Histoire Naturelle'', J.V. Audouin. Black algae species are not all black; they grow as small tufts of red, brown, or black hairlike filaments on any solid surface – most dramatically in freshwater, on the edges of slow-growing leaves. Its thalli are composed of uniaxial filaments, the ends of which often contain elongate hairs. ''Audouinella'' reproduce via spores, most commonly asexually, while sexual reproduction is known in rare cases. Black algae are typically tolerant of high levels of pollution, acidity, and thrive on dissolved phosphate a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of Thailand
Fish are Aquatic animal, aquatic, craniate, gill-bearing animals that lack Limb (anatomy), limbs with Digit (anatomy), digits. Included in this definition are the living hagfish, lampreys, and Chondrichthyes, cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a vertebrate, true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed placodermi, external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyprinid Fish Of Asia
Cyprinidae is a family of freshwater fish commonly called the carp or minnow family. It includes the carps, the true minnows, and relatives like the barbs and barbels. Cyprinidae is the largest and most diverse fish family and the largest vertebrate animal family in general with about 3,000 species, of which only 1,270 remain extant, divided into about 370 genera. Cyprinids range from about 12 mm in size to the giant barb (''Catlocarpio siamensis''). By genus and species count, the family makes up more than two-thirds of the ostariophysian order Cypriniformes. The family name is derived from the Greek word ( 'carp'). Biology and ecology Cyprinids are stomachless fish with toothless jaws. Even so, food can be effectively chewed by the gill rakers of the specialized last gill bow. These pharyngeal teeth allow the fish to make chewing motions against a chewing plate formed by a bony process of the skull. The pharyngeal teeth are unique to each species and are used by scie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crossocheilus
''Crossocheilus'', also known as the fringe barbs, flying foxes, or "algae eaters", is a genus of fish in the family Cyprinidae. It is distributed in China, India, Indonesia, Malaysia and Thailand in Asia. These fish occur in several types of habitat, often fast-flowing rivers with rocky bottoms. Species There are currently 11 recognized species in this genus: * ''Crossocheilus atrilimes'' Kottelat, 2000 * ''Crossocheilus cobitis'' (Bleeker, 1854) * ''Crossocheilus elegans'' Kottelat & H. H. Tan, 2011 Kottelat, M. & Tan, H.H. (2011)''Crossocheilus elegans'', a new species of fish from northern Borneo (Teleostei: Cyprinidae). ''Raffles Bulletin of Zoology, 59 (2): 195-199.'' * ''Crossocheilus gnathopogon'' M. C. W. Weber & de Beaufort, 1916 * ''Crossocheilus langei'' Bleeker, 1860 * ''Crossocheilus microstoma'' Ciccotto & Page, 2017 * ''Crossocheilus nigriloba'' Popta, 1904 * ''Crossocheilus oblongus'' Kuhl & van Hasselt, 1823 * ''Crossocheilus obscurus'' H. H. Tan & Kot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Algae
Red algae, or Rhodophyta (, ; ), are one of the oldest groups of eukaryotic algae. The Rhodophyta also comprises one of the largest phyla of algae, containing over 7,000 currently recognized species with taxonomic revisions ongoing. The majority of species (6,793) are found in the Florideophyceae (class), and mostly consist of multicellular, marine algae, including many notable seaweeds. Red algae are abundant in marine habitats but relatively rare in freshwaters. Approximately 5% of red algae species occur in freshwater environments, with greater concentrations found in warmer areas. Except for two coastal cave dwelling species in the asexual class Cyanidiophyceae, there are no terrestrial species, which may be due to an evolutionary bottleneck in which the last common ancestor lost about 25% of its core genes and much of its evolutionary plasticity. The red algae form a distinct group characterized by having eukaryotic cells without flagella and centrioles, chloroplasts that l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algae Eater
Algae eater or algivore is a common name for any bottom-dwelling or filter-feeding aquatic animal species that specialize in feeding on algae and phytoplanktons. Algae eaters are important for the fishkeeping hobby and many are commonly kept by aquarium hobbyists to improve water quality. They are also important primary consumers that relay the biomass and energy from photosynthetic autotrophes up into the food web, as well as protecting the aquatic ecosystem against algae blooms. Freshwater Fish Some of the common and most popular freshwater aquarium algae eaters include: * Many loricariid catfish of South America, such as genera ''Otocinclus'', ''Ancistrus'', and ''Plecostomus'', constantly graze algae and biofilm, although many species of "plecos", which attain an adult length of over 10 inches, eat much less frequently as they near adulthood. * The Siamese algae eater (''Crossocheilus oblongus'') is a more gregarious and tolerant cyprinid that ranges up to . It is one of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Hardness
Hard water is water that has high mineral content (in contrast with "soft water"). Hard water is formed when water percolates through deposits of limestone, chalk or gypsum, which are largely made up of calcium and magnesium carbonates, bicarbonates and sulfates. Hard drinking water may have moderate health benefits. It can pose critical problems in industrial settings, where water hardness is monitored to avoid costly breakdowns in boilers, cooling towers, and other equipment that handles water. In domestic settings, hard water is often indicated by a lack of foam formation when soap is agitated in water, and by the formation of limescale in kettles and water heaters.World Health OrganizatioHardness in Drinking-Water 2003 Wherever water hardness is a concern, water softening is commonly used to reduce hard water's adverse effects. Origins Natural rainwater, snow and other forms of precipitation typically have low concentrations of multivalent cations such as calcium and magnes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epalzeorhynchos Bicolor
The red-tailed black shark (''Epalzeorhynchos bicolor''; syn. ''Labeo bicolor''), also known as the redtail shark and redtail sharkminnow, is a species of freshwater fish in the carp family, Cyprinidae. Despite its name, it is more closely related to carp. It is Endemism, endemic to Thailand and currently critically endangered, but common in aquaria, where it is prized for its deep black body and vivid red or vivid orange tail. The red-tailed black sharks seen in the aquarium trade today are all captive bred. Distribution The species is Endemism, endemic to Thailand, and was described by Hugh M. Smith in 1931 as being 'not uncommon in Bueng Boraphet and the streams which lead from it, and as being found in the Chao Phraya River as far south as Bangkok. A 1934 expedition reported catching a specimen in the Silom canal. As of 2011 it is only known at a single location in the Chao Phraya basin and has Critically Endangered status on the IUCN Red List. From 1996 until 2011 it was be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gyrinocheilus
''Gyrinocheilus'' is the single genus in the family Gyrinocheilidae, a family of small Southeast Asian cypriniform fishes that live in fast-flowing freshwater mountain streams. The species in this genus are commonly called "algae eaters." They hold on to fixed objects using a sucker-like mouth, and, despite the name, feed on a wide range of detritus, rather than simply on algae. A "golden" variety of ''G. aymonieri'', the Chinese algae eater or "sucking loach", can be found in many pet shops and fish farms. Sucker The mouths of these fish have developed into a suckermouth, which allows the fish to cling onto objects in the fast-moving water of their habitat. They therefore stay close to the bottom, where their primary food, algae, is more readily available. Uniquely among fish, members of this family have gill slits with two openings each. Water enters through one opening, and leaves through the other. This allows the fish to breathe without having to take water in through the m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Community Tank
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. Though not usually called community tanks, most marine aquaria fit into this category too, using fish from places as diverse as the Caribbean, Red Sea, and western Pacific Ocean. Other aquarists prefer communities, called biotopes, that represent particular geographic locations, and combine fish with appropriate decorative materials including endogenous rocks and plants. The most popular of these geographically correct community tanks are those replicating the cichlid habitat of the East African Rift lakes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algae
Algae (; singular alga ) is an informal term for a large and diverse group of photosynthetic eukaryotic organisms. It is a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular microalgae, such as ''Chlorella,'' ''Prototheca'' and the diatoms, to multicellular forms, such as the giant kelp, a large brown alga which may grow up to in length. Most are aquatic and autotrophic (they generate food internally) and lack many of the distinct cell and tissue types, such as stomata, xylem and phloem that are found in land plants. The largest and most complex marine algae are called seaweeds, while the most complex freshwater forms are the ''Charophyta'', a division of green algae which includes, for example, ''Spirogyra'' and stoneworts. No definition of algae is generally accepted. One definition is that algae "have chlorophyll ''a'' as their primary photosynthetic pigment and lack a sterile covering of cells around thei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
