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Latest Amblyopsidae Stories

Hoosier cavefish
2014-06-01 02:35:21

Pensoft Publishers A new eyeless cavefish is described from Indiana and named after the Indiana Hoosiers. It is the first new cavefish species described from the U.S. in 40 years. Notably, it has an anus right behind its head, and the females brood their young in their gill chamber. The new species was described in the open access journal ZooKeys. The new species, Amblyopsis hoosieri, is the closest relative of a species (A. spelaea) from the longest cave system in the world, Mammoth...

hybrid cavefish skull
2014-04-05 06:21:02

redOrbit Staff & Wire Reports - Your Universe Online A newly-identified genetic association with facial asymmetry in ancient cavefish could shed new light into mysteries surrounding conditions such as cleft palate or hemifacial microsomia in humans, according to research appearing in a recent edition of the peer-reviewed journal Genetics. Joshua Gross, an assistant professor in the University of Cincinnati’s Department of Biological Sciences, and his colleagues compared the...

Blind Cavefish Offer Evidence For Long-debated Mechanism Of Evolutionary Change
2013-12-13 11:16:07

Marine Biological Laboratory In a blind fish that dwells in deep, dark Mexican caves, scientists have found evidence for a long-debated mechanism of evolutionary change that is distinct from natural selection of spontaneously arising mutations, as reported this week in the journal Science. The eyeless cavefish Astyanas mexicanus is "a special system in which we can look at evolution in action," says article co-author William Jeffery, a senior adjunct scientist at the Marine Biological...

Closest Relatives To Eyeless Australian Fish Are In Madagascar
2012-08-29 14:13:26

Researchers are first to show ancient trans-oceanic relationship for vertebrate cave animals A team of researchers from Louisiana State University and the American Museum of Natural History has discovered that two groups of blind cave fishes on opposite sides of the Indian Ocean are each other's closest relatives. Through comprehensive DNA analysis, the researchers determined that these eyeless fishes, one group from Madagascar and the other from similar subterranean habitats in Australia,...

2012-01-23 13:13:31

The blind Mexican cavefish (Astyanax mexicanus) have not only lost their sight but have adapted to perpetual darkness by also losing their pigment (albinism) and having altered sleep patterns. New research published in BioMed Central's open access journal BMC Evolutionary Biology shows that the cavefish are an example of convergent evolution, with several populations repeatedly, and independently, losing their sight and pigmentation. The blind cavefish and the surface dwelling Mexican...

2011-09-07 11:15:29

Do animals that have evolved for millions of years underground, completely isolated from the day-night cycle, still "know" what time it is? Does a normal circadian clock persist during evolution under constant darkness? A new study directly tackles these fundamental questions by investigating a species of cavefish, Phreatichthys andruzzii, which has lived isolated for 2 million years beneath the Somalian desert. Many fish species have evolved in the absence of sunlight in cave systems around...

2011-04-08 13:13:16

Cave life is known to favor the evolution of a variety of traits, including blindness and loss of eyes, loss of pigmentation, and changes in metabolism and feeding behavior. Now researchers reporting online on April 7 in Current Biology, a Cell Press publication, have added sleeplessness to that list. "Cave-adapted fish sleep less"”much less"”than closely related surface fish," said Richard Borowsky of New York University. "In some ways, their sleep phenotypes are similar to those...

2010-09-15 15:44:16

University of Maryland biologists show how evolutionary changes helped compensate for the loss of vision in Mexican blind cavefish University of Maryland biologists have identified how changes in both behavior and genetics led to the evolution of the Mexican blind cavefish (Astyanax mexicanus) from its sighted, surface-dwelling ancestor. In research published in the August 12, 2010 online edition of the journal Current Biology, Professor William Jeffery, together with postdoctoral associates...


Latest Amblyopsidae Reference Libraries

Cavefish, Amblyopsidae
2014-08-06 09:52:18

Amblyopsidae is a family that holds six species of cavefish, also known as blindfish or swampfish, that reside in swampy and dark waters in eastern areas of the United States. Although there are over 170 species of cavefish, only six of these are classified in the Amblyopsidae family, some of which reside in swamps, while others reside in the water systems of caves like those in the Mammoth Caves in the state of Kentucky. Some of the most notable of these species include Chologaster cornuta,...

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2007-02-13 15:18:59

The Alabama cavefish, Speoplatyrhinus poulsoni, is a critically endangered type of cavefish which lives in underground pools in Key Cave, located in northwestern Alabama on the Key Cave National Wildlife Refuge. This is the only known location of the fish, and was discovered in 1974 by Cooper and Kuehne. Only nine specimens of the cavefish have been observed and scientists estimate that less than 100 of the fish are left on the planet. It is believed that this fish is the rarest of...

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2007-02-13 15:17:56

The Northern cavefish or Northern blindfish, Amblyopsis spelea, 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 vulnerable. The White River, flowing east to west south of Bedford, Indiana, delimits the northern range of Amblyopsis spelea. These fish are not found in caves north of the White River.

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2007-02-13 15:16:34

The Ozark cavefish, Amblyopsis rosae, is a small subterranean freshwater fish native to the United States. It has been listed as a threatened species in the United States since 1984; the IUCN lists the species as vulnerable. The Ozark cavefish is pinkish-white and reaches a maximum length of 2 in (5 cm). 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. The Ozark cavefish has only...

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Word of the Day
monteith
  • A large punch-bowl of the eighteenth century, usually of silver and with a movable rim, and decorated with flutings and a scalloped edge. It was also used for cooling and carrying wine-glasses.
  • A kind of cotton handkerchief having white spots on a colored ground, the spots being produced by a chemical which discharges the color.
This word is possibly named after Monteith (Monteigh), 'an eccentric 17th-century Scotsman who wore a cloak scalloped at the hem.'
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