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Devario Aequipinnatus (cropped)
The giant danio (''Devario aequipinnatus'') is a species of freshwater ray-finned fish belonging to the family Danionidae. Originating in Sri Lanka, Nepal, and the west coast of India, this species grows to a maximum length of 4–6 inches (10–15 cm), making it one of the largest of the danionins. It is characterized by a blue and yellow, torpedo-shaped body with gray and clear fins. In the wild, giant danios live in clear streams and rivers among hills at elevations up to 1000 ft (300 m) above sea level. Their native substrate is small gravel. They are native to a tropical climate and prefer water with a 6–8 pH, a water hardness of 5.0–19.0 dGH, and a temperature range of 72–81 °F (22–27 °C). As surface dwellers, their diets consist predominantly of exogenous insects, but is also supplemented by worms and crustaceans. In captivity, giant danios will usually accept most foods. They are a somewhat aggressive fish, and may bully other fish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John McClelland (doctor)
John McClelland or M'Clelland (1805 – 31 July 1883) was a British medical doctor with interests in natural history, who worked for the East India Company in India and Burma. He served as a temporary curator of the museum of the Asiatic Society of Bengal just before a permanent curator was found in Edward Blyth. McClelland is thought to have been born in Ireland, studied medicine and was admitted member of the Royal College of Surgeons in 1828. He entered the service of the East India Company in the Bengal Medical Service on 7th April 1830. In 1835 he was sent on a mission (Tea Committee) to identify if tea could be grown in north-eastern India along with Nathaniel Wallich and William Griffith. This mission ran into troubles with the members of the group clashing with each other. McClelland was appointed 1836 as the secretary of the "Coal Committee", the forerunner of the Geological Survey of India (GSI), formed to explore possibilities to exploit Indian coal. He was the firs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Worm
Worms are many different distantly related bilateria, bilateral animals that typically have a long cylindrical tube-like body, no limb (anatomy), limbs, and usually no eyes. Worms vary in size from microscopic to over in length for marine polychaete worms (bristle worms); for the African giant earthworm, ''Microchaetus rappi''; and for the marine nemertean worm (bootlace worm), ''Lineus longissimus''. Various types of worm occupy a small variety of parasitism, parasitic niches, living inside the bodies of other animals. Free-living worm species do not live on land but instead live in marine or freshwater environments or underground by burrowing. In biology, "worm" refers to an obsolete taxon, ''Vermes'', used by Carl Linnaeus, Carolus Linnaeus and Jean-Baptiste Lamarck for all non-arthropod invertebrate animals, now seen to be paraphyletic. The name stems from the Old English word ''wikt:wyrm, wyrm''. Most animals called "worms" are invertebrates, but the term is also use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devario
''Devario'' is a genus of fish in the family (biology), family Danionidae, a family which also contains several other genera of popular freshwater aquarium fish such as ''Rasbora'' and ''Danio''. ''Devario'' are native to the rivers and streams of South Asia, South and Southeast Asia. They have short Barbel (anatomy), barbels, with many species having vertical or horizontal stripes. These species consume various small, aquatic insects, crustaceans and worms, as well as, in the case of fry, plankton. Species ''Devario'' contains the following species:: * ''Devario acrostomus'' (Fang Fang Kullander, F. Fang & Maurice Kottelat, Kottelat, 1999) * ''Devario acuticephala'' (Sunder Lal Hora, Hora, 1921) * ''Devario aequipinnatus'' (John McClelland (doctor), McClelland, 1839) (Giant Danio) * ''Devario affinis'' (Edward Blyth, Blyth, 1860) * ''Devario ahlanderi'' Sven O. Kullander, Kullander & Michael Norén, Norén, 2022. * ''Devario annandalei'' (Banawari Lal Chaudhuri, Chaudhuri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Fish Of Sri Lanka
Sri Lanka is a tropical island situated close to the southern tip of India. It is situated in the middle of Indian Ocean. Because of being an island, Sri Lanka has many endemic freshwater fauna, including fish, crabs, molluscs, and other aquatic insects. Species List Class: Actinopterygii Freshwater fish are physiologically differ from marine and brackish water forms. The low salinity and high osmotic pressure makes them so different. Few fish can be found in all three ecological systems. There are 95 species of freshwater fish occur in the country, where 53 of those are Endemism, endemic. 41% of all known species of fish of Sri Lanka are found in freshwater. There are about 70% of endemism of those fish. Most of them are listed into IUCN categories. Four ''Devario'' species were described in 2017 by Batuwita et al. However, the taxonomy and descriptions were cited as problematic by fellow local ichthyologists. Note: introduced species are not included in the list. Go to ''List ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devario Strigillifer
''Devario strigillifer'' is a species of danio endemic to Myanmar where it is found in shallow, fast-running streams the area of Myitkyina District Myitkyina District () is a Districts of Burma, district of the Kachin State in northern Burma, Burma (Myanmar). The capital lies at Myitkyina. It is the largest district in the country by land area. Townships The district contains the following .... This species grows to a length of SL. References * strigillifer Fish described in 1924 Taxa named by George S. Myers {{Danioninae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devario Malabaricus
The Malabar danio (''Devario malabaricus'') is a species of freshwater ray-finned fish belonging to the family Danionidae. Originating in Sri Lanka and the west coast of India, the fish has been circulated throughout the world through the aquarium fish trade. It grows to a maximum length of but rarely exceeds in a home aquarium. The Malabar danio is found in tropical climates in a wide variety of waters, from mountain streams to small pools, but it prefers flowing waters. It is an active, schooling fish that prefers to be in groups. Its diet consists of insects and plant matter. Malabar danios are oviparous, and spawn in shallow water after heavy rains among the plants growing on the bottom. An adult will spawn around 200 light-orange, sticky eggs that will hatch in one to two days. The fry will be free-swimming after the fifth day. The parents must be removed from aquaria to prevent them from eating the eggs. The species was earlier incorrectly considered a synonym of ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devario Browni
''Devario browni'' is a species of fish in the family Cyprinidae found in fast-flowing, shaded streams in the Salween River drainage; it feeds mainly on terrestrial Terrestrial refers to things related to land or the planet Earth, as opposed to extraterrestrial. Terrestrial may also refer to: * Terrestrial animal, an animal that lives on land opposed to living in water, or sometimes an animal that lives on o ... insects, including ants and flies. References External links danios.info (''Devario browni'') browni Fish described in 1907 Taxa named by Charles Tate Regan {{Danioninae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devario Affinis
''Devario affinis'' is a species of freshwater ray-finned fish belonging to the family Danionidae The danionins are a group of small, minnow-type fish belonging to the family Danionidae. Species of this group are in the genera clades ''Danio'' and '' Devario'' (which also includes ''Chela'', ''Laubuka'', ''Microdevario'', and ''Microrasbora .... This species is found in India, which grows up to in length. References * External links ''Devario affinis'' affinis Fish described in 1860 Taxa named by Edward Blyth {{Danioninae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albino
Albinism is the congenital absence of melanin in an animal or plant resulting in white hair, feathers, scales and skin and reddish pink or blue eyes. Individuals with the condition are referred to as albinos. Varied use and interpretation of the terms mean that written reports of albinistic animals can be difficult to verify. Albinism can reduce the survivability of an animal; for example, it has been suggested that albino alligators have an average survival span of only 24 hours due to the lack of protection from UV radiation and their lack of camouflage to avoid predators. It is a common misconception that all albino animals have characteristic pink or red eyes (resulting from the lack of pigment in the Iris (anatomy), iris allowing the blood vessels of the retina to be visible); this is not the case for some forms of albinism. Familiar albino animals include in-bred strains of laboratory animals (rats, mice and rabbits), but populations of naturally occurring albino animals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spawn (biology)
Spawn is the eggs and sperm released or deposited into water by aquatic animals. As a verb, ''to spawn'' refers to the process of freely releasing eggs and sperm into a body of water (fresh or marine); the physical act is known as spawning. The vast majority of aquatic and amphibious animals reproduce through spawning. These include the following groups: * Bony fishes * Crustaceans (such as crabs, shrimps, etc.) *Mollusks (such as oysters, octopus, squid) *Echinoderms (such as sea urchins, sea stars, sea cucumbers, etc.) * Amphibians (such as frogs, toads, salamanders, newts) * Aquatic insects (such as dragonflies, mayflies, mosquitoes) *Coral, which are living colonies of tiny, aquatic organisms—not plants, as they are sometimes perceived to be. Corals, while appearing sedentary or botanical by nature, actually spawn by releasing clouds of sperm and egg cells into the water column, where the two mix. As a general rule, aquatic or semiaquatic reptiles, birds, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cichlid
Cichlids () are a large, diverse, and widespread family of percomorph fish in the family Cichlidae, order Cichliformes. At least 1,760 species have been scientifically described, making it one of the largest vertebrate families, with only the Cyprinidae being more speciose. New species are discovered annually, and many species remain undescribed. The actual number of species is therefore unknown, with estimates varying between 2,000 and 3,000. They are native to the Neotropics, Africa (including Madagascar), the Middle East, and the Indian subcontinent, although some species have been introduced worldwide. Many cichlids, particularly tilapia, are important food fishes, while others, such as the '' Cichla'' species, are valued game fish. The family also includes many popular freshwater aquarium fish kept by hobbyists, including the angelfish, oscars, and discus. Cichlids have the largest number of endangered species among vertebrate families, most in the haplochrom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dither Fish
The term dither fish refers to an arbitrary group of aquarium fish, commonly used by aquarists, to help reduce innate timidity and aggression as well as to promote normal social behaviour in the other fish housed within the same aquarium. Overview Dither fish help reduce anxiety of some nervous species of fish by allowing the fearful species to see that it is safe to leave cover and eat the food that has been given to them. Commonly used dither fish are typical schooling species, such as some ''Danio'', barb and tetra species, and are most often used in cichlid tanks. Other dither fish used include liverbearers, rasboras, corydoras, rainbowfish, hatchetfish, and pencilfish. Choice of which dither fish is used is dependent on the fish currently present and the issue trying to be solved. Behavior Dither fish are typically fish that swim around the top of a tank, a behavior that reassures more timid fish that no predators are nearby, and are found naturally in the same habitat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
