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List Of Smallest Fish
The world's smallest fish depends on the measurement used. Based on minimum standard length at maturity the main contenders are ''Paedocypris progenetica'' where females can reach it at ,Scholastic news online:''The World's Smallest Fish?'' by: Ezra Billinkoff- Retrieved February 3, 2006 Retrieved January 25 the stout infantfish (''Schindleria brevipinguis'') where females reach it at and males at , and '' |
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] |
Smallest Organisms
The smallest organisms found on Earth can be determined according to various aspects of organism size, including volume, mass, height, length, or genome size. Given the incomplete nature of scientific knowledge, it is possible that the smallest organism is undiscovered. Furthermore, there is some debate over the definition of life, and what entities qualify as organisms; consequently the smallest known organism (microorganism) is debatable. Microorganisms Obligate endosymbiotic bacteria The genome of '' Nasuia deltocephalinicola'', a symbiont of the European pest leafhopper, '' Macrosteles quadripunctulatus'', consists of a circular chromosome of 112,031 base pairs. The genome of ''Nanoarchaeum equitans'' is 490,885 nucleotides long. ''Pelagibacter ubique'' ''Pelagibacter ubique'' is one of the smallest known free-living bacteria, with a length of and an average cell diameter of . They also have the smallest free-living bacterium genome: 1.3 Mbp, 1354 protein genes, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Largest Fish
Fish vary greatly in size. The whale shark and basking shark exceed all other fish by a considerable margin in weight and length. Fish are a paraphyletic group that describes aquatic vertebrates while excluding tetrapods, and the bony fish that often represent the group are more closely related to cetaceans such as whales, than to the cartilaginous fish such as sharks and rays. As such, cross group comparisons on this page only serve a colloquial purpose. Largest extant fish Jawless fish (Agnatha) * Hagfish ( Myxini) :The hagfish, which are not taxonomically true fish, are among the most primitive extant vertebrates. There is only one order and family in this animal class. All of the 77 known species have elongated, eel-like bodies but can be distinguished by their downward-facing mouths. The largest form is the Goliath hagfish (''Eptatretus goliath''). This species can range up to in length and weigh to . * Lampreys (Petromyzontiformes) :As with the hagfish, lampreys ap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schindleria Brevipinguis
''Schindleria brevipinguis'' is a species of marine fish in family Gobiidae of Perciformes. Known as the stout infantfish, it is native to Australia's Great Barrier Reef and to Osprey Reef in the Coral Sea. Anatomy ''S. brevipinguis'' is among the smallest known fish in the world, together with species such as ''Paedocypris progenetica''. Males of ''S. brevipinguis'' have an average standard length of , a gravid female was and the maximum standard length of the species is . It held the record for the smallest known vertebrate, but now, by a measurement of snout-to-vent length, the smallest vertebrate species currently is the recently (Jan 2012) described frog ''Paedophryne amauensis'', while the parasitic males of the anglerfish ''Photocorynus spiniceps'' are but long. ''S. brevipinguis'' is distinguished from the similar '' S. praematura'' by having its first anal-fin ray further forward, under dorsal-fin 4, rather than 7–11 in ''S. praematura''. Like most closely rel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stout Infantfish
''Schindleria brevipinguis'' is a species of marine fish in family Gobiidae of Perciformes. Known as the stout infantfish, it is native to Australia's Great Barrier Reef and to Osprey Reef in the Coral Sea. Anatomy ''S. brevipinguis'' is among the smallest known fish in the world, together with species such as ''Paedocypris progenetica''. Males of ''S. brevipinguis'' have an average standard length of , a gravid female was and the maximum standard length of the species is . It held the record for the smallest known vertebrate, but now, by a measurement of snout-to-vent length, the smallest vertebrate species currently is the recently (Jan 2012) described frog ''Paedophryne amauensis'', while the parasitic males of the anglerfish ''Photocorynus spiniceps'' are but long. ''S. brevipinguis'' is distinguished from the similar '' S. praematura'' by having its first anal-fin ray further forward, under dorsal-fin 4, rather than 7–11 in ''S. praematura''. Like most closely rela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trimmatom Nanus
''Trimmatom nanus'', the midget dwarfgoby, is a species of marine goby native to the Indian Ocean and the western Pacific Ocean. It can mainly be found on oceanic drop-offs at depths of from though it can occasionally be found in outer reef areas and lagoons at depths of from . This species can reach a length of SL. ''T. nanus'' was until 2004 the smallest known fish and vertebrate. The recent discovery of ''Schindleria brevipinguis'' (called the stout infantfish) relegated it to second place. Later, the discovery of ''Paedocypris progenetica'' dropped ''T. nanus'' to third place. The record for the smallest known vertebrate being held by the frog ''Paedophryne amauensis ''Paedophryne amauensis'' is a species of microhylid frog endemic to eastern Papua New Guinea. At in snout-to-vent length, it is considered the world's smallest known vertebrate. (See also Ecological guild.) The species was listed in the '' ...'', formally described in January 2012. References E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Midget Dwarfgoby
''Trimmatom nanus'', the midget dwarfgoby, is a species of marine goby native to the Indian Ocean and the western Pacific Ocean. It can mainly be found on oceanic drop-offs at depths of from though it can occasionally be found in outer reef areas and lagoons at depths of from . This species can reach a length of SL. ''T. nanus'' was until 2004 the smallest known fish and vertebrate. The recent discovery of ''Schindleria brevipinguis'' (called the stout infantfish) relegated it to second place. Later, the discovery of ''Paedocypris progenetica'' dropped ''T. nanus'' to third place. The record for the smallest known vertebrate being held by the frog ''Paedophryne amauensis ''Paedophryne amauensis'' is a species of microhylid frog endemic to eastern Papua New Guinea. At in snout-to-vent length, it is considered the world's smallest known vertebrate. (See also Ecological guild.) The species was listed in the ''T ...'', formally described in January 2012. References E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gobiidae
Gobiidae or gobies is a family of bony fish in the order Gobiiformes, one of the largest fish families comprising more than 2,000 species in more than 200 genera. Most of gobiid fish are relatively small, typically less than in length, and the family includes some of the smallest vertebrates in the world, such as '' Trimmatom nanus'' and ''Pandaka pygmaea'', ''Trimmatom nanus'' are under long when fully grown, then ''Pandaka pygmaea'' standard length are , maximum known standard length are . Some large gobies can reach over in length, but that is exceptional. Generally, they are benthic or bottom-dwellers. Although few are important as food fish for humans, they are of great significance as prey species for other commercially important fish such as cod, haddock, sea bass and flatfish. Several gobiids are also of interest as aquarium fish, such as the dartfish of the genus ''Ptereleotris''. Phylogenetic relationships of gobiids have been studied using molecular data. Descript ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pandaka Pygmaea
The dwarf pygmy goby or Philippine goby (''Pandaka pygmaea'') is a tropical species of fish in the subfamily Gobionellinae from brackish water and mangrove areas in Southeast Asia. It is one of the smallest fish species in the world. Males reach maturity at a standard length of and can reach up to in standard length, while the females can grow up to in total length. Adults weigh around . It is known as ''bia'' and ''tabios'' in the Philippines., ''Guide to the Philippine Flora and Fauna, Band IX'', (undated). Distribution and habitat ''P. pygmaea'' was initially reported as being endemic to Malabon, Metro Manila in the Philippines, where found at shady river banks. The species has now been extirpated from this area as it was reclaimed, leading to its status as critically endangered by the IUCN. More recently, it has been discovered at a range of other locations in Southeast Asia, including Culion Island, Bali, Sulawesi and Singapore. As part of the aquarium trade, it was im ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dwarf Pygmy Goby
The dwarf pygmy goby or Philippine goby (''Pandaka pygmaea'') is a tropical species of fish in the subfamily Gobionellinae from brackish water and mangrove areas in Southeast Asia. It is one of the smallest fish species in the world. Males reach maturity at a standard length of and can reach up to in standard length, while the females can grow up to in total length. Adults weigh around . It is known as ''bia'' and ''tabios'' in the Philippines., ''Guide to the Philippine Flora and Fauna, Band IX'', (undated). Distribution and habitat ''P. pygmaea'' was initially reported as being endemic to Malabon, Metro Manila in the Philippines, where found at shady river banks. The species has now been extirpated from this area as it was reclaimed, leading to its status as critically endangered by the IUCN. More recently, it has been discovered at a range of other locations in Southeast Asia, including Culion Island, Bali, Sulawesi and Singapore. As part of the aquarium trade, it was im ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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