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Merodoras
''Merodoras nheco'' is species of freshwater ray-finned fish, it is the only species in the genus ''Merodoras'' of the catfish (order Siluriformes) family Doradidae. Taxonomy ''Merodoras'' and its type species ''M. nheco'' were described in 2007. It belongs to the subfamily Astrodoradinae. This genus is most closely related to ''Amblydoras''. Distribution and habitat ''Merodoras nheco'' inhabits a flooded portion of the upper Paraguay River basin in western Brazil called the ''Pantanal Matogrossense''. Here it lives in the lentic lakes in flooded areas. Appearance and anatomy ''M. nheco'' is like other doradids. It has three pairs of barbels (one pair maxillary, two pairs mental), strong dorsal and pectoral fin spines. ''M. nheco'' is differentiated from all other doradids by having its scutes with thorns directed ventrally in adults, and from all doradids except ''Physopyxis cristata'' by having an incomplete lateral line. It has a smooth dorsal fin spine, as opposed to a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doradidae
The Doradidae are a family of catfishes also known as thorny catfishes, raphael catfishes or talking catfishes. These fish are native to South America, primarily the Amazon basin and the Guianas. Doradids are omnivorous. Taxonomy As of 2007, 31 genera and 78 species are in this family. '' Wertheimeria'' is considered to be the sister taxon to all other doradids. This family is monophyletic and contains the subfamilies Doradinae, Astrodoradinae and Wertheimerinae.Birindelli, J.L.O. (2014): Phylogenetic relationships of the South American Doradoidea (Ostariophysi: Siluriformes). ''Neotropical Ichthyology 12(3): 451-564''. The Astrodoradinae contain the genera ''Amblydoras'', ''Anadoras'', ''Astrodoras'', '' Hypodoras'', ''Merodoras'', ''Physopyxis'', and ''Scorpiodoras''. Distribution Doradids occur in most South American basins, though they are absent from the Pacific Coast drainages and from coastal drainages south of the Río de la Plata. About 70% of the valid species occur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anadoras
''Anadoras'' is a genus of thorny catfishes native to tropical South America. This genus has been assigned to the subfamily Astrodoradinae. Species There are currently four recognized species in this genus: * '' Anadoras grypus'' (Cope, 1872) * '' Anadoras insculptus'' ( A. Miranda-Ribeiro, 1912) (of uncertain affinities, may belong here or in '' Amblydoras'') * ''Anadoras regani'' (Steindachner, 1908) * ''Anadoras weddellii ''Anadoras weddellii'' is a species of thorny catfish that is found in Argentina, Brazil, Bolivia and Paraguay. This species grows to a length of SL. The IUCN Red List considers '' Anadoras regani'' a junior synonym of ''Anadoras weddellii'', ...'' ( Castelnau, 1855) References Doradidae Fish of South America Fish of the Amazon basin Taxa named by Carl H. Eigenmann Freshwater fish genera {{Doradidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amblydoras
''Amblydoras'' is a genus of thorny catfishes native to rivers in tropical South America. ''Amblydoras'' is one of several genera classified within the subfamily Astrodoradinae. ''Amblydoras'' species range from about 7.5–10.2 centimetres (3.0–4.0 in) SL. Species There are currently five recognized species in this genus: * '' Amblydoras affinis'' ( Kner, 1855) * '' Amblydoras bolivarensis'' ( Fernández-Yépez, 1968) * '' Amblydoras gonzalezi'' ( Fernández-Yépez, 1968) * '' Amblydoras monitor'' (Cope, 1872) * '' Amblydoras nauticus'' (Cope The cope (known in Latin as ''pluviale'' 'rain coat' or ''cappa'' 'cape') is a liturgical vestment, more precisely a long mantle or cloak, open in front and fastened at the breast with a band or clasp. It may be of any liturgical colours, litu ..., 1874) References Doradidae Fish of South America Taxa named by Pieter Bleeker Catfish genera Freshwater fish genera {{Doradidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horacio Higuchi
The name Horacio is found sporadically throughout all Latinamerica. Historical Figures *Horacio Quiroga, an Uruguayan author and writer. *Horacio Carochi, an Italian Jesuit priest and grammarian *Horacio Pagani (auto executive) (born 1955), Argentinian founder of Pagani Automobili S.p.A. *Horacio Pagani (sportswriter) (born 1948), Argentine sportswriter and sportscaster Meaning The name Horacio is a boy's name with Latin origins that means timekeeper. Origin The masculine name Horacio \ho-ra-cio\ is a variant of Horace. See also See also the similarly spelled name Horatio Horatio is an English male given name, an Italianized form of the ancient Roman Latin '' nomen'' (name) ''Horatius'', from the Roman ''gens'' (clan) '' Horatia''. The modern Italian form is '' Orazio'', the modern Spanish form '' Horacio''. It app .... References Spanish masculine given names {{name-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barbel (anatomy)
In fish anatomy and turtle anatomy, a barbel is a slender, whiskerlike sensory organ near the mouth. Fish that have barbels include the catfish, the carp, the goatfish, the hagfish, the sturgeon, the zebrafish, the black dragonfish and some species of shark such as the sawshark. Barbels house the taste buds of such fish and are used to search for food Food is any substance consumed by an organism for nutritional support. Food is usually of plant, animal, or fungal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ... in murky water. The word "barbel" comes from the Middle Latin ''barbula'', for "little beard." Barbels are sometimes erroneously referred to as '' barbs'', which are found in bird feathers for flight. Barbels may be located in a variety of locations on the head of a fish. "Maxillary barbels" refers to barbels on either side of the mouth. Barbels may also be nasal, exten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Fish Of Brazil
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include non- salty mineral-rich waters such as chalybeate springs. Fresh water may encompass frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/ sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranean rivers and lakes. Fresh water is the water resource that is of the most and immediate use to humans. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of higher plants and most insects, amphibians, reptiles, mammals and birds need fresh water to survive. Fresh wate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentastomida
The Pentastomida are an enigmatic group of parasitic arthropods commonly known as tongue worms due to the resemblance of the species of the genus ''Linguatula'' to a vertebrate tongue; molecular studies point to them being degenerate crustaceans. About 130 species of pentastomids are known; all are obligate parasites with correspondingly degenerate anatomy. Adult tongue worms vary from about in length, and parasitise the respiratory tracts of vertebrates. They have five anterior appendages. One is the mouth; the others are two pairs of hooks, which they use to attach to the host. This arrangement led to their scientific name, meaning "five openings", but although the appendages are similar in some species, only one is a mouth. Taxonomy Historically significant accounts of tongue worm biology and systematics include early work by Josef Aloys Frölich, Alexander von Humboldt, Karl Asmund Rudolphi, Karl Moriz Diesing and Rudolph Leuckart. Other important summaries have been pub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Host (biology)
In biology and medicine, a host is a larger organism that harbours a smaller organism; whether a parasitic, a mutualistic, or a commensalist ''guest'' (symbiont). The guest is typically provided with nourishment and shelter. Examples include animals playing host to parasitic worms (e.g. nematodes), cells harbouring pathogenic (disease-causing) viruses, a bean plant hosting mutualistic (helpful) nitrogen-fixing bacteria. More specifically in botany, a host plant supplies food resources to micropredators, which have an evolutionarily stable relationship with their hosts similar to ectoparasitism. The host range is the collection of hosts that an organism can use as a partner. Symbiosis Symbiosis spans a wide variety of possible relationships between organisms, differing in their permanence and their effects on the two parties. If one of the partners in an association is much larger than the other, it is generally known as the host. In parasitism, the parasite benefits ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Measurement
Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the hypural plate. Simply put, this measurement excludes the length of the caudal (tail) fin. * Total length (TL) is the length of a fish measured from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body. Standard length measurements are used with Teleostei (most bony fish), while total length measurements are used with Myxini ( hagfish), Petromyzontiformes ( lampreys), and (usually) Elasmobranchii (shark Sharks are a group of elasmobranch fish chara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caudal Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lateral Line
The lateral line, also called the lateral line organ (LLO), is a system of sensory organs found in fish, used to detect movement, vibration, and pressure gradients in the surrounding water. The sensory ability is achieved via modified epithelial cells, known as hair cells, which respond to displacement caused by motion and transduce these signals into electrical impulses via excitatory synapses. Lateral lines serve an important role in schooling behavior, predation, and orientation. Fish can use their lateral line system to follow the vortices produced by fleeing prey. Lateral lines are usually visible as faint lines of pores running lengthwise down each side, from the vicinity of the gill covers to the base of the tail. In some species, the receptive organs of the lateral line have been modified to function as electroreceptors, which are organs used to detect electrical impulses, and as such, these systems remain closely linked. Most amphibian larvae and some fully aquati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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