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Amblyopsis
''Amblyopsis'' is a genus of small (up to long) fish in the family Amblyopsidae that are endemic to the central and eastern United States. Like other cavefish, they lack pigmentation and are blind. The most recently described species was in 2014. Uniquely among fish, ''Amblyopsis'' brood their eggs in the gill chambers (somewhat like mouthbrooders). It was formerly incorrectly speculated that the same brooding behavior existed in other genera in the family and in the pirate perch (''Aphredoderus sayanus''). During the Pleistocene period, the modern Ohio river was a barrier of dispersal and created a great genetic variation, leading to two phylogenetically distinct lineages from the species Amblyopsis. Species There are currently 3 species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amblyopsis Hoosieri
''Amblyopsis'' is a genus of small (up to long) fish in the family Amblyopsidae that are endemic to the central and eastern United States. Like other cavefish, they lack pigmentation and are blind. The most recently described species was in 2014. Uniquely among fish, ''Amblyopsis'' brood their eggs in the gill chambers (somewhat like mouthbrooders). It was formerly incorrectly speculated that the same brooding behavior existed in other genera in the family and in the pirate perch (''Aphredoderus sayanus''). During the Pleistocene period, the modern Ohio river was a barrier of dispersal and created a great genetic variation, leading to two phylogenetically distinct lineages from the species Amblyopsis. Species There are currently 3 species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Cavefish
The northern cavefish or northern blindfish (''Amblyopsis spelaea'') is found in caves through Kentucky and southern Indiana. It is listed as a threatened species in the United States and the IUCN lists the species as near threatened. During a 2013 study of ''Amblyopsis spelaea'', scientists found that the species was divided into two distinct evolutionary lineages: one north of the Ohio River, in Indiana, and one south of the river, in Kentucky. The southern population retained the name ''A. spelaea'' and the northern was re-designated '' Amblyopsis hoosieri'' in a 2014 paper published in the journal ''ZooKeys''. Neither species is found north of the White River, flowing east to west south of Bedford, Indiana Bedford is a city in Shawswick Township, Lawrence County, Indiana, Shawswick Township and the county seat of Lawrence County, Indiana, Lawrence County, Indiana, United States. In the 2020 United States Census, 2020 census, the population was 13,7 .... References * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amblyopsis Spelaea
The northern cavefish or northern blindfish (''Amblyopsis spelaea'') is found in caves through Kentucky and southern Indiana. It is listed as a threatened species in the United States and the IUCN lists the species as near threatened. During a 2013 study of ''Amblyopsis spelaea'', scientists found that the species was divided into two distinct evolutionary lineages: one north of the Ohio River, in Indiana, and one south of the river, in Kentucky. The southern population retained the name ''A. spelaea'' and the northern was re-designated ''Amblyopsis hoosieri'' in a 2014 paper published in the journal ''ZooKeys''. Neither species is found north of the White River, flowing east to west south of Bedford, Indiana Bedford is a city in Shawswick Township, Lawrence County, Indiana, Shawswick Township and the county seat of Lawrence County, Indiana, Lawrence County, Indiana, United States. In the 2020 United States Census, 2020 census, the population was 13,7 .... References * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ozark Cavefish
The Ozark cavefish, ''Amblyopsis rosae'', is a small subterranean freshwater fish endemic to the United States. It has been listed as a threatened species in the US since 1984; the IUCN currently lists the species as Near Threatened, though this was previously listed as Vulnerable (VU D1+2 v2.3) between 1986 and 1996. It is listed as Endangered and Threatened by the Missouri Department of Conservation. Description The Ozark cavefish is pinkish-white and reaches a maximum length of . The head is flattened, and it has a slightly protruding lower jaw. The fish has no pelvic fin; the dorsal and anal fins are farther back than on most fish. It has only rudimentary eyes and no optic nerve. The Ozark cavefish lives only in caves. It has no pigmentation and has lost some unused characters. However, it is well adapted to a cave environment through well-developed sensory papillae. They feed primarily on microscopic organisms, as well as small crustaceans and salamander larvae. Their r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amblyopsidae
The Amblyopsidae are a fish family commonly referred to as cavefish, blindfish, or swampfish. They are small freshwater fish found in the dark environments of caves (underground lakes, pools, rivers and streams), springs and swamps in the eastern half of the United States. Like other troglobites, most amblyopsids exhibit adaptations to these dark environments, including the lack of functional eyes and the absence of pigmentation. More than 200 species of cavefishes are known,Riesch, R.; Tobler, M.; and Plath, M. (2015). ''Extremophile Fishes: Ecology, Evolution, and Physiology of Teleosts in Extreme Environments.'' but only six of these are in the family Amblyopsidae.Romero, A., editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. One of these, ''Forbesichthys agassizii'', spends time both underground and aboveground. A seventh species in this family, ''Chologaster cornuta'', is not a cave-dweller but lives in aboveground swamps. D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amblyopsis Rosae
The Ozark cavefish, ''Amblyopsis rosae'', is a small subterranean freshwater fish endemic to the United States. It has been listed as a threatened species in the US since 1984; the IUCN currently lists the species as Near Threatened, though this was previously listed as Vulnerable (VU D1+2 v2.3) between 1986 and 1996. It is listed as Endangered and Threatened by the Missouri Department of Conservation. Description The Ozark cavefish is pinkish-white and reaches a maximum length of . The head is flattened, and it has a slightly protruding lower jaw. The fish has no pelvic fin; the dorsal and anal fins are farther back than on most fish. It has only rudimentary eyes and no optic nerve. The Ozark cavefish lives only in caves. It has no pigmentation and has lost some unused characters. However, it is well adapted to a cave environment through well-developed sensory papillae. They feed primarily on microscopic organisms, as well as small crustaceans and salamander larvae. Their rep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cave Fish
Cavefish or cave fish is a generic term for fresh and brackish water fish adapted to life in caves and other underground habitats. Related terms are subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish and hypogean fish.Romero, Aldemaro, editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. Helfman, G.S. (2007). ''Fish Conservation: A Guide to Understanding and Restoring Global Aquatic Biodiversity and Fishery Resources'', pp. 41–42. Island Press. There are more than 200 scientifically described species of obligate cavefish found on all continents, except Antarctica. Although widespread as a group, many cavefish species have very small ranges and are seriously threatened.Fenolio, D.B.; Zhao, Y.; Niemiller, M.L.; and Stout, J. (2013). ''In-situ observations of seven enigmatic cave loaches and one cave barbel from Guangxi, China, with notes on conservation status.'' Speleobiology Notes 5: 19-33.Proud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cavefish
Cavefish or cave fish is a generic term for fresh and brackish water fish adapted to life in caves and other underground habitats. Related terms are subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish and hypogean fish.Romero, Aldemaro, editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. Helfman, G.S. (2007). ''Fish Conservation: A Guide to Understanding and Restoring Global Aquatic Biodiversity and Fishery Resources'', pp. 41–42. Island Press. There are more than 200 scientifically described species of obligate cavefish found on all continents, except Antarctica. Although widespread as a group, many cavefish species have very small ranges and are seriously threatened.Fenolio, D.B.; Zhao, Y.; Niemiller, M.L.; and Stout, J. (2013). ''In-situ observations of seven enigmatic cave loaches and one cave barbel from Guangxi, China, with notes on conservation status.'' Speleobiology Notes 5: 19-33.Proud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prosanta Chakrabarty
Prosanta Chakrabarty (born November 25, 1978) is an American ichthyologist and professor of ichthyology, evolution and systematics at Louisiana State University. He studied at McGill University where he received a bachelor of science in Applied Zoology and at the University of Michigan where he obtained his PhD in Ecology and Evolution. Among other professional positions he was a Program Director for the National Science Foundation and is currently the President-Elect of the American Society of Ichthyologist and Herpetologist. He was named a TED Fellow in 2016, and a TED Senior Fellow in 2018. He was named an Elected Fellow of the AAAS for "distinguished contributions to evolutionary biology, focusing on the bioluminescent systems and historical biogeography of freshwater fishes, and for effectively communicating science to the public." Research Chakrabarty's research has taken him to over 30 countries and has described over 13 new species of fishes. In 2014 he discovered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mouthbrooder
Mouthbrooding, also known as oral incubation and buccal incubation, is the care given by some groups of animals to their offspring by holding them in the mouth of the parent for extended periods of time. Although mouthbrooding is performed by a variety of different animals, such as the Darwin's frog, fish are by far the most diverse mouthbrooders. Mouthbrooding has evolved independently in several different families of fish. Mouthbrooding behaviour Paternal mouthbrooders are species where the male looks after the eggs. Paternal mouthbrooders include the arowana, various mouthbrooding bettas and gouramies such as ''Betta pugnax'', and sea catfish such as ''Ariopsis felis''. Among cichlids, paternal mouthbrooding is relatively rare, but is found among some of the tilapiines, most notably the black-chin tilapia ''Sarotherodon melanotheron''. In the case of the maternal mouthbrooders, the female takes the eggs. Maternal mouthbrooders are found among both African and South American ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pirate Perch
The pirate perch (''Aphredoderus sayanus'') is a freshwater fish that commonly inhabits coastal waters along the east coast of the United States and the backwater areas of the Mississippi Valley. This species is often found towards the bottom of clear, warm water habitats with low currents. These fish are normally solitary, carnivorous, and nocturnal. The pirate perch is known to consume live mosquito larva, amphipods, glass shrimp, meal worms, small fish, dragonfly and stonefly larvae, and earthworms. The pirate perch is related to the trout-perches, but only loosely; it is the only species in its family, Aphredoderidae. The specific name ''sayanus'' is a tribute to naturalist Thomas Say. Charles C. Abbott gave the fish its common name after observing it eating only other fishes. Description This small fish is up to in total length. It is dark brown, sometimes with a darker band near the base of the tail. A unique feature of this fish is the forward placement of its cloaca, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacques Andre Prejean
Ancient and noble French family names, Jacques, Jacq, or James are believed to originate from the Middle Ages in the historic northwest Brittany region in France, and have since spread around the world over the centuries. To date, there are over one hundred identified noble families related to the surname by the Nobility & Gentry of Great Britain & Ireland. Origins The origin of this surname ultimately originates from the Latin, Jacobus which belongs to an unknown progenitor. Jacobus comes from the Hebrew name, Yaakov, which translates as "one who follows" or "to follow after". Ancient history A French knight returning from the Crusades in the Holy Lands probably adopted the surname from "Saint Jacques" (or "James the Greater"). James the Greater was one of Jesus' Twelve Apostles, and is believed to be the first martyred apostle. Being endowed with this surname was an honor at the time and it is likely that the Church allowed it because of acts during the Crusades. Indeed, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
