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Polycentridae
Leaffishes are small fishes of the family Polycentridae. According to FishBase, it only includes the genera '' Monocirrhus'' and '' Polycentrus'' from fresh and brackish water in tropical South America. Although included in the Asian leaffish family Nandidae by FishBase, most recent authorities place the African '' Afronandus'' and '' Polycentropsis'' in Polycentridae.Collins, R.A., R. Britz, and L. Ruber (2015). Phylogenetic systematics of leaffishes (Teleostei: Polycentridae, Nandidae). J Zoolog Syst Evol Res 53(4). Polycentridae were formerly placed in the order Cichliformes but are now regarded as being ''incertae sedis'' in the subseries Ovalentaria in the clade Percomorpha. All of these fishes are highly specialized ambush predators that resemble leaves, down to the point that their swimming style resembles a drifting leaf (thus the common name leaf fish); when a prey animal - such as an aquatic insect or smaller fish - comes within range, the fish attacks, swallowing the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polycentridae
Leaffishes are small fishes of the family Polycentridae. According to FishBase, it only includes the genera '' Monocirrhus'' and '' Polycentrus'' from fresh and brackish water in tropical South America. Although included in the Asian leaffish family Nandidae by FishBase, most recent authorities place the African '' Afronandus'' and '' Polycentropsis'' in Polycentridae.Collins, R.A., R. Britz, and L. Ruber (2015). Phylogenetic systematics of leaffishes (Teleostei: Polycentridae, Nandidae). J Zoolog Syst Evol Res 53(4). Polycentridae were formerly placed in the order Cichliformes but are now regarded as being ''incertae sedis'' in the subseries Ovalentaria in the clade Percomorpha. All of these fishes are highly specialized ambush predators that resemble leaves, down to the point that their swimming style resembles a drifting leaf (thus the common name leaf fish); when a prey animal - such as an aquatic insect or smaller fish - comes within range, the fish attacks, swallowing the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polycentrus Jundia
''Polycentrus'' is a genus of small fish belonging to the family Polycentridae. They are found in fresh and brackish water in northern South America and Trinidad. Species There are currently 2 recognized species in this genus: * '' Polycentrus jundia'' Coutinho & Wosiacki, 2014 * ''Polycentrus schomburgkii ''Polycentrus schomburgkii'', also known as the Guyana leaffish is a species of fish belonging to the family Polycentridae. It inhabits fresh and brackish waters, both clear and turbid, of the northeastern part of South America and Trinidad. It ...'' Müller & Troschel, 1849 (Guyana leaffish) References Polycentridae {{ray-finned fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polycentrus Schomburgkii
''Polycentrus schomburgkii'', also known as the Guyana leaffish is a species of fish belonging to the family Polycentridae. It inhabits fresh and brackish waters, both clear and turbid, of the northeastern part of South America and Trinidad Trinidad is the larger and more populous of the two major islands of Trinidad and Tobago. The island lies off the northeastern coast of Venezuela and sits on the continental shelf of South America. It is often referred to as the southernmos .... It reaches a maximum length of . Description The females are a deep brown, but the males are velvety-black with turquoise or silver spots and flecks. It uses its coloration to blend in with its surroundings. In the aquarium ''Polycentrus schomburgkii'' is sometimes kept as an aquarium fish, where its small size allows for tanks as small as ten gallons in size. Like other South American leaffishes (and numerous other leaf-like fishes, for that matter) it is an ambush predator that floats motio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monocirrhus Polyacanthus
The Amazon leaffish (''Monocirrhus polyacanthus''), or South American leaffish, is a species of fish belonging to the family Polycentridae. It is found in the Amazon basin in Bolivia, Brazil, Colombia, Peru and Venezuela, where it inhabits edges of rivers and lakes, and streams. It is generally a low-density species that lives in slow-moving or essentially stagnant waters in areas with plant debris. Amazon leaffish are sometimes kept in aquariums, but they require acidic water, low light and live prey. Appearance The Amazon leaffish reaches a maximum standard length of , and a total length of . As suggested by its common name, it closely resembles a dead leaf. The flattened body and filament at the tip of the lower jaw (resembling a stalk) further enhances its similarity to a leaf. It is gray-brown, but can change its color to some extent. There is no lateral line and its large mouth can be protracted to as much as 60% of the head length. Behavior The Amazon leaffish is highl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monocirrhus
The Amazon leaffish (''Monocirrhus polyacanthus''), or South American leaffish, is a species of fish belonging to the family Polycentridae. It is found in the Amazon basin in Bolivia, Brazil, Colombia, Peru and Venezuela, where it inhabits edges of rivers and lakes, and streams. It is generally a low-density species that lives in slow-moving or essentially stagnant waters in areas with plant debris. Amazon leaffish are sometimes kept in aquariums, but they require acidic water, low light and live prey. Appearance The Amazon leaffish reaches a maximum standard length of , and a total length of . As suggested by its common name, it closely resembles a dead leaf. The flattened body and filament at the tip of the lower jaw (resembling a stalk) further enhances its similarity to a leaf. It is gray-brown, but can change its color to some extent. There is no lateral line and its large mouth can be protracted to as much as 60% of the head length. Behavior The Amazon leaffish is highl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polycentrus
''Polycentrus'' is a genus of small fish belonging to the family Polycentridae. They are found in fresh and brackish water in northern South America and Trinidad. Species There are currently 2 recognized species in this genus: * ''Polycentrus jundia'' Coutinho & Wosiacki, 2014 * ''Polycentrus schomburgkii ''Polycentrus schomburgkii'', also known as the Guyana leaffish is a species of fish belonging to the family Polycentridae. It inhabits fresh and brackish waters, both clear and turbid, of the northeastern part of South America and Trinidad ...'' Müller & Troschel, 1849 (Guyana leaffish) References Polycentridae {{ray-finned fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nandidae
Nandidae, the leaffish, are a family of small freshwater fishes which some authorities classify in the order Anabantiformes, but which the 5th edition of '' Fishes of the World'' classifies the family and the related Badidae and Pristolepididae outside that order as "sister-taxa". Fishes of the World classified these families and the Anabantiformes alongside Synbranchiformes, Carangiformes, Istiophoriformes and Pleuronectiformes in a monophyletic clade which is a sister taxon to the Ovalentaria but to which the authors do not assign a rank or a name. According to FishBase, the family includes three genera: '' Nandus'' of South and Southeast Asia with several species, and the monotypic '' Afronandus'' and '' Polycentropsis'' of tropical West and Middle Africa. Most recent authorities place the two African genera in the South American leaffish family, Polycentridae, which is only distantly related to ''Nandus'' (the "true" Nandidae).Collins, R.A., R. Britz, and L. Ruber (2015). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afronandus
The fourspine leaffish (''Afronandus sheljuzhkoi''), is a species of in the Nandidae native to rivers and streams in Ivory Coast and Ghana. Although placed in the family Nandidae by FishBase, most recent authorities place ''Afronandus'' in Polycentridae.Collins, R.A., R. Britz, and L. Ruber (2015). Phylogenetic systematics of leaffishes (Teleostei: Polycentridae, Nandidae). J Zoolog Syst Evol Res 53(4). The specific name honours the collector of the type, Leo Sheljuzhko (1890–1969), a Ukrainian-German entomologist who sent the type to Meinken. This species grows to a total length of . This species is the only known member of its 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 com .... References Nandidae Fish described in 1954 Taxa named by Herman Meinken Freshwater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polycentropsis
the African leaffish (''Polycentropsis abbreviata'') is a species of African leaffish native to fresh waters of western Africa. Although placed in the family Nandidae by FishBase and by the 5th Edition of ''Fishes of the World'' many recent authorities place ''Polycentropsis'' in Polycentridae.Collins, R.A., R. Britz, and L. Ruber (2015). Phylogenetic systematics of leaffishes (Teleostei: Polycentridae, Nandidae). J Zoolog Syst Evol Res 53(4). This species grows to a length of TL. It can also be found in the aquarium trade. This species is the only known member of its 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 com .... References Nandidae Fish described in 1901 {{Rayfinned-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Percomorpha
Percomorpha () is a large clade of ray-finned fish that includes the tuna, seahorses, gobies, cichlids, flatfish, wrasse, perches, anglerfish, and pufferfish. Evolution Percomorpha are the most diverse group of teleost fish today. Teleosts, and percomorphs in particular, thrived during the Cenozoic era. Fossil evidence shows that there was a major increase in size and abundance of teleosts immediately after the mass extinction event at the Cretaceous-Paleogene boundary ca. 65 Ma ago. Phylogeny External relationships The two cladograms below are based on Betancur-R ''et al.'', 2017. Percomorphs are a clade of teleost fishes. The first cladogram shows the interrelationships of percomorphs with other living groups of teleosts. Internal relationships The following cladogram shows the evolutionary relationships of the various groups of extant Extant is the opposite of the word extinct. It may refer to: * Extant hereditary titles * Extant literature, surviving literature, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ovalentaria
Ovalentaria is a clade of ray-finned fishes within the Percomorpha, referred to as a subseries. It is made up of a group of fish families which are referred to in ''Fishes of the World's'' fifth edition as'' incertae sedis'', as well as the orders Mugiliformes, Cichliformes, and Blenniiformes. It was named by W. L. Smith and T. J. Near in Wainwright ''et al.'' (2012) based on a molecular phylogeny, but the authors suggested that the group was united by the presence of demersal eggs that are attached to a substrate. Some authors have used the ordinal name Stiassnyiformes for a clade including Mugiloidei, Plesiopidae, Blenniiformes, Atherinomorpha, and Cichlidae, and this grouping does appear to be monophyletic. Classification In the 5th edition of'' Fishes of the World'', the Ovalentaria are classified as: * ''incertae sedis'' ** Family Ambassidae (Asian glassfishes) ** Family Embiotocidae (surfperches) ** Family Grammatidae (basslets) ** Family Plesiopidae (roundheads) ** F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ingested by an organism and assimilated by the organism's cells to provide energy, maintain life, or stimulate growth. Different species of animals have different feeding behaviours that satisfy the needs of their unique metabolisms, often evolved to fill a specific ecological niche within specific geographical contexts. Omnivorous humans are highly adaptable and have adapted to obtain food in many different ecosystems. The majority of the food energy required is supplied by the industrial food industry, which produces food with intensive agriculture and distributes it through complex food processing and food distribution systems. This system of conventional agriculture relies heavily on fossil fuels, which means that the food and agricu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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