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Latest Sea lamprey Stories

Sea Lampreys Use Fat Layer To Attract Females
2013-06-27 18:33:19

Michael Harper for redOrbit.com - Your Universe Online Male sea lampreys, often called vampire fish, have a long ridge running across their backs that contains a long row of brown fat cells. Other animals also have stores of brown fat similar to the ridge found on the male lampreys. In mammals, this fat is used to regulate body temperature and warm the animal when their surroundings are too cold. Scientists from Michigan State University (MSU) were curious why the male lampreys had this...

Genome Sequencing Of The Sea Lamprey Completed By Researchers
2013-03-02 05:21:25

Brett Smith for redOrbit.com - Your Universe Online According to a report in the journal Nature Genetics, an international team of geneticists has announced the successful sequencing of the sea lamprey genome. The sea lamprey makes for an interesting genetic case from an evolutionary standpoint, being a jawless vertebrate that diverged from jawed vertebrates millions of years ago. “The sea lamprey is a primitive jawless vertebrate that diverged from other jawed vertebrates...

2012-08-21 23:20:13

Study of “contained, isolated” genes in sea lamprey may indicate how potentially deleterious genes can be controlled Research on a unique vertebrate called the sea lamprey shows that more than a thousand genes are shed during its early development. These genes are paradoxically lost all throughout the developing embryo except in a specialized compartment called “primordial germ cells” or PGCs. The PGCs can be thought of as embryonic stem cells and are used,...

2011-04-16 00:47:04

A new paper appearing in the Proceedings of the National Academy of Sciences (PNAS) suggests that people, governments, and institutions that shape the way people interact may be just as important for determining environmental conditions as the environmental processes themselves. "Tipping points," qualitative changes in an ecosystem that often result in reduced ecosystem health and are difficult and costly to reverse increasingly concern environmental scientists. The prevailing assumption...

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2010-07-20 10:09:40

Michigan State University researchers are the first to identify a stress hormone in the sea lamprey, using the 500 million-year-old species as a model to understand the evolution of the endocrine system. Corticosteroid hormones control stress response in animals with backbones, including humans. While scientists have learned quite a bit about these so-called stress hormones in most modern animals, little was known about the hormones' earliest forms in prehistoric creatures such as lamprey....

2009-08-17 11:34:13

A Great Lakes official says invasive Asian carp have made it miles beyond a Chicago barrier intended to keep the species out of Lake Michigan. Great Lakes Fishery Commission spokesman Marc Gaden said after genetic testing showed evidence of flying Asian carp five miles beyond the electric barrier of a Chicago canal, the power on the barrier was increased to prevent further incursions, The Detroit Free Press said Monday. These carp are clawing at the door now, Gaden said. The silver carp could...

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2009-07-21 09:40:00

Growing lamprey embryos discard millions of units of their DNA Researchers have discovered that the sea lamprey, which emerged from jawless fish first appearing 500 million years ago, dramatically remodels its genome. Shortly after a fertilized lamprey egg divides into several cells, the growing embryo discards millions of units of its DNA. The findings were published this month in the Proceedings of the National Academy of Sciences. The lead author is Jeramiah Smith, a postdoctoral fellow in...

2009-06-25 07:37:17

In addition to providing fundamental insights into the early evolution of the estrogen receptor, research by a team at the University of California, San Diego School of Medicine may lead to a contraceptive for female lampreys "“ a jawless fish considered an invasive pest species in the Great Lakes region of the United States. This could prove important to the Great Lakes region, where lampreys aggressively consume trout, salmon, sturgeon and other game fish."Since the introduction of...

2009-05-17 14:27:05

Researchers say they have begun placing a pheromone in Michigan streams in an attempt to lure female sea lampreys into traps. Researcher Nick Johnson of the Hammond Bay Biological Station said the pheromone was designed by scientists at Michigan State University to mimic a spawning scent emitted by male sea lampreys, the Detroit Free Press reported Sunday. Once they smell it, they follow it, Johnson said of the female of the prehistoric species. Since arriving in the Great Lakes eight decades...

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2009-01-20 13:24:39

Scientists say a synthetic chemical sex smell could help rid North America's Great Lakes of a devastating pest known as the "vampire fish." A laboratory version of a male sea lamprey pheromone was deployed to trick ovulating females into swimming upstream into traps, US researchers said. The vampire fish, known formally as the sea lamprey, has become a harmful parasite to native species of the Great Lakes since its accidental introduction in the 1800s. Recreational fishing of the Great Lakes...


Latest Sea lamprey Reference Libraries

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2008-04-30 23:59:32

The Sea Lamprey (Petromyzon marinus), is a parasitic lamprey found on the Atlantic coasts of Europe and North America, in the western Mediterranean Sea, and in the Great Lakes. Sea lampreys are considered a pest invasive species in the Great Lakes region. The species is native to the inland Finger Lakes and Lake Cosco in New York and Vermont. It is not clear whether it is native to Lake Safeway, where it was first noticed in the 1830s, or whether it was introduced through the Ernie's...

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Word of the Day
Cthulhu
  • A gigantic fictional humanoid alien god being described with a head resembling an octopus and dragon wings and claws, around whom an insane cult developed.
  • Pertaining to the mythos of Cthulhu and additional otherworldly beings created by H. P. Lovecraft or inspired by his writings and imitators.
This word was invented in 1926 by H.P. Lovecraft for his short story, 'The Call of Cthulhu.' 'Cthulhu' may be based on the word 'chthonic,' which in Greek mythology refers to the underworld.
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