Navigation Links
Leading lampreys to slaughter: Pheromone for scourge of Great Lakes identified

For the rats of Hamelin, it was the Pied Piper's tune. For the destructive sea lamprey of the Great Lakes, it's a chemical attractant, or pheromone, released by lamprey larvae living in streambeds. Following the pheromone trail, adults are drawn to streams favorable for spawning. Researchers have long wanted to identify the pheromone so it could be synthesized and used to control the sea lamprey, which laid waste to Great Lakes fisheries of lake trout and other species in the mid-20th century.

Now, a team of University of Minnesota researchers has identified the three major components of the pheromone and synthesized the principal one, a novel steroid akin to a shark steroid that possesses anticancer activity. This is the first migratory attractant to be identified in any fish. The work is the cover story for the November issue of Nature Chemical Biology and will be published online in the journal Sunday, Oct. 2.

The lamprey is one of the earliest relics of vertebrate evolution, dating back nearly 400 million years, before the evolution of jaws and bony skeletons. The species parasitizes other fish by attaching with their circular, toothy mouths and sucking the body juices. A single lamprey will feed for about a year, consuming on average 40 pounds of fish. In the Great Lakes, their prey have been commercially valuable species like lake trout and whitefish.

Currently, the Great Lakes Fishery Commission (GLFC) controls lamprey by means of a poison that kills lamprey larvae in streambeds. It also kills every invertebrate it comes in contact with, and sometimes fish. The lampricide is tanker-trucked to streams, some of them in populated areas, in an expensive, labor-intensive and unpopular undertaking. The GLFC is eager to use a synthetic form of the newly found pheromone to replace the poison by luring lamprey to traps and sterilizing the males, the researchers said. Using the pheromone would be environmentally friendly and less expensive.


'"/>

Source:University of Minnesota


Page: 1 2 3

Related biology news :

1. Leading scientists rank endangered dolphins, porpoises most in need of immediate action
2. Leading reason for corneal transplants comes into focus
3. Pheromone from mothers milk may rapidly promote learning in newborn mammals
4. Great White shark evolution debate involves WSU Lake Campus geology professor
5. Aggressive aquatic species invading Great Lakes
6. Low oxygen likely made Great Dying worse, greatly delayed recovery
7. HIV Therapy Greatly Extends Life of Key T Cells, Scientists Find
8. Great (taste) expectations: Study shows brain anticipates taste, shifts gears
9. UNH researcher restoring oyster reefs to Great Bay
10. CSIRO imagery shows Outer Great Barrier Reef at risk from river plumes
11. National Academies advisory: Invasive aquatic species in the Great Lakes
Post Your Comments:
(Date:8/29/2014)... Davis have made some surprising discoveries about the ... immunodeficiency virus (SIV), the team found that specialized ... early responders to viral invasion and are the ... called interleukin-1 beta (IL-1β). , Though aimed ... of the gut epithelium that provides a barrier ...
(Date:8/29/2014)... Scientists at the Barshop Institute for Longevity and ... the UT Health Science Center at San Antonio, have ... the longest-lived rodent, the naked mole rat. , ... naked mole rats protects and alters the activity of ... proteins. , The factor also protects proteasome function in ...
(Date:8/29/2014)... about what genetic changes transform wild animals into domesticated ... is a University of Montana assistant professor, has made ... of the brain and the nervous system were particularly ... 28 in Science and gives answers to ... ., The domestication of animals and plants, a prerequisite ...
Breaking Biology News(10 mins):The early cost of HIV 2Factor in naked mole rat's cells enhances protein integrity 2New research reveals how wild rabbits were genetically transformed into tame rabbits 2New research reveals how wild rabbits were genetically transformed into tame rabbits 3
... of the University of New Hampshire campus, David Berlinsky, assistant ... Inside, black sea bass circle slowly in the dim light. ... the College of Life Sciences and Agriculture, and home to ... many menus, but wild populations of the fish are in ...
... with hepatitis C virus (HCV) achieved significantly better ... Cyclosporine along with interferon-ribavirin combination therapy. Cyclosporine also ... , The results of this study appear ... the official journal of the American Association for ...
... infants born with HIV infection may be most effective ... according to a study published in the April 1 ... online. , Uncertainty over when to start antiretroviral treatment ... around balancing the benefits of preventing disease progression and ...
Cached Biology News:Uncovering sex-change secrets of black sea bass 2Cyclosporine inhibits hepatitis C virus in vitro 2New study shows benefit of early therapy in HIV-infected infants 2
(Date:8/29/2014)... Three Lawrence Livermore researchers have ... Production R&D Award for their research in ... sunlight. , Shared with collaborators from the National ... Nevada, Las Vegas (UNLV), the award recognizes the ... solar-hydrogen production and corrosion processes. , These models ...
(Date:8/28/2014)... (PRWEB) August 28, 2014 Best Sanitizers, ... for the food processing industry, is asking industry professionals ... side comparison of the E2 soap they’re currently using ... Foam Soap . Hand hygiene is critical to ... food processing environment. Six key criteria are identified to ...
(Date:8/28/2014)... , Aug. 28, 2014 ... a new market research report ... Whole Exome Sequencing ... (Library Preparation, Target Enrichment), by ... by Synthesis), by Application (Cancer, ...
(Date:8/28/2014)... , Aug. 28, 2014  Armetheon, Inc. ( ... novel mid- to late-stage cardiovascular drug candidates, today ... its first round of financing. The Series A ... Hercules Bioventures with participation from investors that included ... executive, Dr. Larry Hsu , the founder ...
Breaking Biology Technology:Livermore Team Awarded for Hydrogen Production Research 2Best Sanitizers, Inc. Asks Food Industry Professionals: With Fall Harvest On the Way, Is Your E2 Hand Soap Up to the Task? 2Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 2Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 3Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 4Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 5Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 6Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 7Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 8Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 9Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 10Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 11Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 12Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 13Armetheon Completes $7.0 Million Series A Financing 2Armetheon Completes $7.0 Million Series A Financing 3
... SAN FRANCISCO, March 16 Medivation, Inc. (Nasdaq: ... and financial results for the fourth quarter and year ended December ... to an equally exciting 2009. We have made excellent progress across ... testing in all of our programs in 2009 -- Dimebon in ...
... 16 TauTaTis, Inc. announces that its lead compound ... process in Alzheimer,s Disease, has been recognized as the ... Disease gene LRRK2 reported to date. Mutations of ... are the most genetic frequent cause of Parkinson,s Disease.TauTaTis, ...
... Provider, Offers Traceability Down to the Unit Level to Secure ... ... Southborough, MA (PRWEB) March 16, 2009 -- PHARMORX ... technology services provider, today announced the availability of its new ...
Cached Biology Technology:Medivation Reports Fourth Quarter and Year-End 2008 Financial Results and Provides Corporate Update 2Medivation Reports Fourth Quarter and Year-End 2008 Financial Results and Provides Corporate Update 3Medivation Reports Fourth Quarter and Year-End 2008 Financial Results and Provides Corporate Update 4Medivation Reports Fourth Quarter and Year-End 2008 Financial Results and Provides Corporate Update 5Medivation Reports Fourth Quarter and Year-End 2008 Financial Results and Provides Corporate Update 6Medivation Reports Fourth Quarter and Year-End 2008 Financial Results and Provides Corporate Update 7Medivation Reports Fourth Quarter and Year-End 2008 Financial Results and Provides Corporate Update 8TauTaTis Discovers Potent Inhibitor of Parkinson's Disease Gene Activity 2PHARMORX Security Introduces New Technology Solutions for Counterfeiting, Grey Market Diversion, Track & Trace 2PHARMORX Security Introduces New Technology Solutions for Counterfeiting, Grey Market Diversion, Track & Trace 3
... Ideal for staining westerns and includes stickers ... Pour spouts in each corner facilitate pouring ... be used for identification. Lid is designed ... for staining several gels simultaneously. Lid also ...
ID clarifier: non-treated with lid...
... Staccato Series of systems provide fast and reliable scalable ... drug development laboratories. Staccato systems are available in three ... Systems Series. ... All Staccato ...
... Staccato Custom Series Systems provide ... drug discovery, genomics, proteomics and drug ... built specifically to customer specifications, providing ... individual needs. Staccato Custom Systems ...
Biology Products: