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Astatheros
''Astatheros macracanthus'', the blackthroat cichlid, is a species of cichlid freshwater fish from southern Mexico and northern Central America. It is the only recognized species in the genus ''Astatheros'', but it was originally described in '' Heros'', then for a long period included in ''Cichlasoma'' and until 2008 it was typically included in ''Amphilophus''. Several other species have also been placed in ''Astatheros'' in the past, but they are now generally placed in ''Cribroheros''.Říčan, O., Piálek, L., Dragová, K., and Novák, J. (2016). Diversity and evolution of the Middle American cichlid fishes (Teleostei: Cichlidae) with revised classification. Vertebrate Zoology 66 (1): 1-102. This blackthroat cichlid is omnivorous and reaches up to in standard length 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphilophus
''Amphilophus'' is a genus of cichlid fishes from Central America, ranging from southern Mexico to Panama. The genus currently contains 23 species, including several that are well-known from the aquarium trade. However, studies led by Oldřich Říčan in 2008 and 2016 suggested that several species within ''Amphilophus'' should be moved to the genus ''Astatheros''. Species proposed to be moved to ''Astatheros'' in 2008 were ''A. alfari'', ''A. altifrons'', ''A. bussingi'', ''A. diquis'', ''A. longimanus'', ''A. macracanthus'' (which would be the type species for ''Astatheros''), ''A. margaritifer'', ''A. rhytisma'', ''A. robertsoni'' and ''A. rostratus''. Further genetic studies led Říčan to put ''A. macracanthus'' in ''Astatheros'', but to put ''A. alfari'', ''A. altifrons'', ''A. bussingi'', ''A. diquis'', ''A. longimanus'', ''A. rhytisma'', ''A. robertsoni'' and ''A. rostratus'' within the genus ''Cribroheros''. Říčan's study suggests that the ''Astatheros'' species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heroini
Heroini is a fish tribe from the Cichlasomatinae subfamily in the cichlid family. All cichlids native to the Greater Antilles, United States (southern Texas), Mexico and northern Central America are members of this tribe. It also includes most cichlid species in southern Central America (where only non-Heroini cichlids are ''Andinoacara'' and ''Geophagus'') and several species from South America (where several other tribes exist). A large percentage of its species were formerly placed in the genus ''Cichlasoma'' (itself now placed in the tribe Cichlasomatini), but have since been moved to other genera. In other classifications the tribe Heroini is placed in the subfamily Cichlinae. Abstract Genera This tribe include about 35 genus and 160 species: * '' Amatitlania'' Schmitter-Soto, 2007 * ''Amphilophus'' Agassiz, 1859 * '' Archocentrus'' Gill, 1877 * ''Astatheros'' Pellegrin, 1904 * ''Australoheros'' Říčan & Kullander, 2006 * ''Caquetaia'' Fowler, 1945 * ''Chiapaheros'' M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cichlasoma
''Cichlasoma'' is a genus of freshwater fish in the cichlid family. The genus was previously very large (a wastebasket taxon), including cichlids from North America, including Central America, and South America. Reclassification and subsequent splitting of the genus by Sven O. Kullander and other ichthyologists has resulted in removing many of the former species from ''Cichlasoma'' to genera such as ''Amphilophus'', '' Archocentrus'', ''Herichthys'', '' Heros'', ''Nandopsis'', ''Parachromis'', '' Thorichthys'', ''Vieja'' and others in the tribe Heroini. Species According to FishBase, there are currently sixteen recognized species in this genus, but three very different Middle American taxa ("''C.''"'' geddesi'' a synonym of ''Herichthys deppii'', and "''C.''"'' istlanum'' and "''C.''"'' trimaculatum'' placed in ''Amphilophus'') are not included by Catalog of Fishes, effectively limiting ''Cichlasoma'' to a group of rather similar, medium-small cichlids of South America. * ''Cich ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Fish Of Mexico
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. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cichlid Fish Of Central America
Cichlids are fish from the family Cichlidae in the order Cichliformes. Cichlids were traditionally classed in a suborder, the Labroidei, along with the wrasses ( Labridae), in the order Perciformes, but molecular studies have contradicted this grouping. The closest living relative of cichlids is probably the convict blenny, and both families are classified in the 5th edition of '' Fishes of the World'' as the two families in the Cichliformes, part of the subseries Ovalentaria. This family is both large and diverse. At least 1,650 species have been scientifically described, making it one of the largest vertebrate families. 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. 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 aquar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cichlid Genera
Cichlids are fish from the family Cichlidae in the order Cichliformes. Cichlids were traditionally classed in a suborder, the Labroidei, along with the wrasses ( Labridae), in the order Perciformes, but molecular studies have contradicted this grouping. The closest living relative of cichlids is probably the convict blenny, and both families are classified in the 5th edition of ''Fishes of the World'' as the two families in the Cichliformes, part of the subseries Ovalentaria. This family is both large and diverse. At least 1,650 species have been scientifically described, making it one of the largest vertebrate families. 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. 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 aquar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Length
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 (sharks and rays), as well as some other fishes. Total length measu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omnivorous
An omnivore () is an animal that has the ability to eat and survive on both plant and animal matter. Obtaining energy and nutrients from plant and animal matter, omnivores digest carbohydrates, protein, fat, and fiber, and metabolize the nutrients and energy of the sources absorbed. Often, they have the ability to incorporate food sources such as algae, fungi, and bacteria into their diet. Omnivores come from diverse backgrounds that often independently evolved sophisticated consumption capabilities. For instance, dogs evolved from primarily carnivorous organisms (Carnivora) while pigs evolved from primarily herbivorous organisms (Artiodactyla). Despite this, physical characteristics such as tooth morphology may be reliable indicators of diet in mammals, with such morphological adaptation having been observed in bears. The variety of different animals that are classified as omnivores can be placed into further sub-categories depending on their feeding behaviors. Frugivores ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cribroheros
''Cribroheros'' is a genus of cichlid found in Middle America. These freshwater fish are distributed over most of Middle America, from western Panama to southern Mexico, on both Atlantic and Pacific slopes. Depending on species, their habitat ranges from fast-flowing rivers and streams, to slow-moving or standing water such as ponds and lakes. Although the genus is overall widespread, the individual species tend to have more restricted distributions and some are threatened, especially due to habitat loss and pollution. They reach up to in standard length. Species There are currently 8 recognized species in this genus: * '' Cribroheros alfari'' (Meek, 1907) (Pastel cichlid) * '' Cribroheros altifrons'' ( Kner, 1863) * '' Cribroheros bussingi'' ( Loiselle, 1997) * '' Cribroheros diquis'' ( W. A. Bussing, 1974) * '' Cribroheros longimanus'' ( Günther, 1867) (Red-breast cichlid) * '' Cribroheros rhytisma'' ( López S., 1983) * '' Cribroheros robertsoni'' (Regan The family nam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heros (fish)
''Heros'' is a genus of cichlids native to the Amazon, Orinoco and Essequibo River basins in South America.Staeck, W. & Schindler, I. (2015): Description of a new ''Heros'' species (Teleostei, Cichlidae) from the Rio Orinoco drainage and notes on ''Heros severus'' Heckel, 1840. ''Bulletin of Fish Biology, 15 (1/2): 121-136.'' They were previously included in the genus ''Cichlasoma'' before its restriction to the distinct group of "Port Cichlids." The ''Heros'' species most commonly encountered in the aquarium trade are fish referable to the species ''Heros efasciatus''. However, the trade name generally used is "Severum Cichlids." Trade fish are very often line bred specimens of color sports such as "Super Red Severums" or "Gold Severums." The provenance of these is not clear, but they seem to have been derived from the base "Green Severum" form that is most closely identified with ''H. efasciatus.'' Species There are currently five recognized species in this genus: * ''Heros e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
