Navigation Links
Researchers reveal the infectious impact of salmon farms on wild salmon

A new study published in the March 30th edition of the prestigious scientific journal Proceedings of the Royal Society B (a publication of the UK's national academy of science) shows that the transfer of parasitic sea lice from salmon farms to wild salmon populations is much larger and more extensive than previously believed.

This quantitative analysis of parasite transfer is a scientific milestone in a contentious debate. It is the first to isolate and measure the impact of a fish farm on sea lice outbreaks in wild salmon. The study combined new field techniques that allowed comprehensive, individual observations of over 5,500 young wild pink and chum salmon over 60 km of migration route; an enormous data set from months of laborious fieldwork; and state of the art models of disease transfer.

"Our research shows that the impact of a single farm is far reaching," says lead author Marty Krkosek. "Sea lice production from the farm we studied was four orders of magnitude - 30,000 times - higher than natural. These lice then spread out around the farm. Infection of wild juvenile salmon was 73 times higher than ambient levels near the farm and exceeded ambient levels for 30 kilometers of the wild migration route."

This increase in sea lice abundance is likely to be damaging for already dwindling wild salmon populations in British Columbia, where the study took place.

In Europe, transfer of parasites is generally accepted as a significant threat to adjacent wild populations ?although European studies have not measured the direct transfer of sea lice from farms to wild salmon. However, a bitter debate continues in British Columbia and the Pacific Northwest as to whether salmon farms are contributing to sea lice infections of wild salmon at all.

"Parasites are a key negative side effect of fish farms on the local fish stocks," says Andrew Dobson, an epidemiologist from Princeton University who researches infectious diseases in wildlife
'"/>

Source:SeaWeb


Page: 1 2 3 4

Related biology news :

1. Researchers discover way to make cells in the eye sensitive to light
2. Researchers find how protein allows insects to detect and respond to pheromones
3. Researchers Uncover Key Step In Manufacture of Memory Protein
4. Researchers identify target for cancer drugs
5. Researchers discover molecule that causes secondary stroke
6. Researchers find missing genes of ancient organism
7. Researchers trace evolution to relatively simple genetic changes
8. Researchers add new tool to tumor-treatment arsenal
9. UF Researchers Map Bacterial Proteins That Cause Tooth Loss
10. VCU Researchers Identify Networks Of Genes Responding To Alcohol In The Brain
11. Researchers develop rapid diagnostic tool for pathogen identification
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Researchers reveal the infectious impact salmon farms wild salmon

(Date:4/18/2014)... X-ray crystallography and nuclear magnetic resonance imaging (NMR) to ... but such efforts have long been hampered by the ... molecule and often in ordered and crystalized form to ... peer into the structure of most molecules. , Harvard ... thing of the past. , A team of ...
(Date:4/18/2014)... Seeds that sprout as soon as they,re planted may be ... be more careful. In the wild, a plant whose seeds ... risk disaster. More than just an insurance policy against late ... dormancy has long-term advantages too: Plants whose seeds put ... more species, finds in a team of researchers working at ...
(Date:4/17/2014)... A drug under clinical trials to treat tuberculosis ... drugs that act against various bacteria, fungal infections and ... University of Illinois chemists and collaborators. , Led by ... determined the different ways the drug SQ109 attacks the ... target other pathogens from yeast to malaria and ...
Breaking Biology News(10 mins):MRI, on a molecular scale 2MRI, on a molecular scale 3Plants with dormant seeds give rise to more species 2Multitarget TB drug could treat other diseases, evade resistance 2
... where two neurons communicate. Neurotransmitter molecules released from the ... terminal on the other, binding to receptors that lead ... and edited by experts in the field, The ... the highly complex structures of the pre- and postsynaptic ...
... Some deep-sea crabs have eyes sensitive to ultraviolet light, which ... in their mouths, a new Nova Southeastern University study suggests. ... at Nova Southeastern University,s Oceanographic Center, who is the principal ... zone --- a pitch dark area at the ocean bottom ...
... the players on your favourite football team were smaller than ... Left defenseless, they would become easy prey for other teams. ... water organisms vulnerable to their predators, which may pose a ... low calcium levels the organisms grow slower and cannot build ...
Cached Biology News:Deep-sea crabs seek food using ultraviolet vision 2Deep-sea crabs seek food using ultraviolet vision 3Changes in water chemistry leave lake critters defenseless 2
(Date:1/15/2014)... More than 5 million Americans are currently living ... will die with Alzheimer’s or another dementia, according to ... many Americans into looking for ways to improve their ... cognitive disorders. Jonathan Weisman, president of Biohack Pure, is ...
(Date:1/15/2014)... The Microcompetition with Foreign DNA theory explains ... these latent viruses is the Epstein Barr Virus (EBV), and ... (RA) is a chronic inflammatory disease that destroys the body’s ... RA patients have high concentrations of EBV DNA in their ...
(Date:1/15/2014)... Arizona (PRWEB) January 15, 2014 2013 ... for Scottsdale’s Brain State Technologies®. They saw continued independent ... Medical Center who were awarded a $1 million grant ... published in “Brain and Behavior” a peer reviewed journal, ...
(Date:1/15/2014)... ON (PRWEB) January 15, 2014 AudioNotch ... experimental new therapy for the treatment of tinnitus. Patients ... tinnitus frequency, and over a period of weeks to months, ... Sound Therapy in two forms: Notched Music and Notched White ...
Breaking Biology Technology:Biohack Pure Offers 5 Tips for Increasing Memory in 2014 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3
... , , ... , , Cell death as ... of cell numbers in adult,organisms, furthermore in eliminating cells damaged by,irradiation, ... of,eukaryotic cell death: oncosis and apoptosis. How cells,die does not so ...
... , , ... , , , ... DNA synthesis in cell,cultures is now a routine procedure in ... systems. The effects of growth,factors, inhibition of cell division by ...
... , ... , , , , ... dihydropyrimidine dehydrogenase (DPD), and thymidylate,synthase (TS) play a pivotal role ... compound 5-fluorouracil (5-FU) is the standard,chemotherapy treatment for a wide ...
Cached Biology Technology:Quantification of Nucleosomes in Serum,by the Cell Death Detection ELISAplus 2Quantification of Nucleosomes in Serum,by the Cell Death Detection ELISAplus 3Quantification of Nucleosomes in Serum,by the Cell Death Detection ELISAplus 4Quantification of Nucleosomes in Serum,by the Cell Death Detection ELISAplus 5Quantification of Nucleosomes in Serum,by the Cell Death Detection ELISAplus 6Quantitative Measurement of Cell Proliferation,Using the BrdU ELISA: A Comparison,Between Colorimetric and Chemiluminescent Detection 2Quantitative Measurement of Cell Proliferation,Using the BrdU ELISA: A Comparison,Between Colorimetric and Chemiluminescent Detection 3Quantitative Measurement of Cell Proliferation,Using the BrdU ELISA: A Comparison,Between Colorimetric and Chemiluminescent Detection 4Quantitative Measurement of Cell Proliferation,Using the BrdU ELISA: A Comparison,Between Colorimetric and Chemiluminescent Detection 5Quantitative Measurement of Cell Proliferation,Using the BrdU ELISA: A Comparison,Between Colorimetric and Chemiluminescent Detection 6Gene-Expression Analysis of TP, DPD, and TS Using,the LightCycler mRNA Quantification KitsPLUS 2Gene-Expression Analysis of TP, DPD, and TS Using,the LightCycler mRNA Quantification KitsPLUS 3Gene-Expression Analysis of TP, DPD, and TS Using,the LightCycler mRNA Quantification KitsPLUS 4
... Multidrop 384 offers lower consumption of ... screening applications. The Multidrop 384 is ... screening and microvolume dispensing into 384- ... outstanding flexibility. It can easily switch ...
...
... macromolecular structure has been determined, the challenge ... widely diverse audience of scientists, educators and ... and dissemination over the Internet, either via ... pages. Printed literature has the advantage of ...
Buckets for 2 racks of 5 tubes, type Stago/Hitachi...
Biology Products: