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

. "We're seeing similar effects in Scotland, Norway, and Ireland; in each area parasite amplification on fish farms seems to increase disease levels in the local fish community. However previous studies have not shown nor quantified the direct transmission. This study captures the chain of events."

"Part of the contentious debate about sea lice is that there hasn't been this level of precision in the sampling and modeling," says coauthor Mark Lewis, a mathematical ecologist from the University of Alberta known for his work on West Nile virus and invasive species. "We have worked out the spatial footprint ?the data are strong and show that the farms are having a significant impact over a very large area."

The researchers isolated the effect of the salmon farm by studying the infection levels of migrating juvenile pink and chum salmon as they approached and passed a salmon farm. Within the study area, the salmon farms are anchored in a long thin fjord. Here the wild salmon have no choice but to pass by the farm on their seaward migration.

The scientists developed new, non-lethal sampling techniques that allowed them to examine thousands of the fish for parasites, taking measurements every 2 to 4 km. The fish start in the rivers and head to sea, traveling en masse in large mixed schools. Thus the scientists could see the effect on the salmon as they moved toward the farm. They found that the juvenile salmon carried almost no sea lice prior to the farm but became heavily infected as they approached it.

Unlike other species, pink and chum salmon leave their natal rivers while still much smaller than your baby finger ?3 cm long ?and weighing only half a gram. "The youngest fish can be only days old when they encounter a farm," says Krkosek. "Some of these fish are so young their egg sacks haven't been fully absorbed ?even fish this small are infected."

The anchored farms, open cages of closely packed salmon, are aquatic feedlots pro
'"/>

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:8/21/2014)... heard of the water window? It consists of radiations ... not absorbed by the water in biological tissues. New ... coherent radiations within the water window. These could be ... high-contrast image of the biological samples or to be ... identifies the physical mechanism needed to efficiently generate the ...
(Date:8/21/2014)... RUSTON, La. A team of researchers ... innovative method for using affordable, consumer-grade 3D ... implants that can contain antibacterial and chemotherapeutic ... team comprised of doctoral students and research ... nanosystems engineering programs collaborated to create filament ...
(Date:8/20/2014)... E. Fox, a John and Rebecca Moores Professor of Biology ... a fellow in the International Society for the Study of ... of four members two from the U.S., one from ... 2014. Fellows are elected every three years, and 36 have ... more than 20 countries, the ISSOL includes researchers from disciplines ...
Breaking Biology News(10 mins):Water window imaging opportunity 2Louisiana Tech University researchers use 3D printers to create custom medical implants 2Louisiana Tech University researchers use 3D printers to create custom medical implants 3UH professor named fellow by International Astrobiology Society 2
... (ESA) will present its fifth annual Regional Policy Award ... during the Society,s upcoming conference in Portland, Oregon. The ... who has an outstanding record of informing political decision-making ... present this prestigious award to Ken Bierly for his ...
... (Boston) A recent study led by Boston University School ... plays a significant role in the regulation of high fat, ... which are published online in PLoS ONE , also ... type 2 diabetes. Katya Ravid, DSc/PhD, professor of ...
... Institution (WHOI) researchers have partnered with two companies ... WHOI: the Imaging FlowCytobot, an automated underwater microscope, ... light to provide wireless transmission of data, including ... WHOI biologists Robert Olson and Heidi Sosik, creators ...
Cached Biology News:Ken Bierly of the Oregon Watershed Enhancement Board to receive ESA Regional Policy Award 2Ken Bierly of the Oregon Watershed Enhancement Board to receive ESA Regional Policy Award 3BUSM study identifies receptor's role in regulating obesity, type 2 diabetes 2WHOI scientists/engineers partner with companies to market revolutionary new instruments 2WHOI scientists/engineers partner with companies to market revolutionary new instruments 3WHOI scientists/engineers partner with companies to market revolutionary new instruments 4
(Date:8/22/2014)... published today (August 22nd), in the scientific journal ... Neuroscience Programme establish the effect of serotonin on ... genetic and optical techniques., "Serotonin is a small ... range of brain functions, from the control of ... emotional behaviours, This neurotransmitter is also popularly thought ...
(Date:8/22/2014)... 22, 2014 Research and Markets ... China Gel Permeation Chromatography (GPC) Industry Report 2014" ... and China Gel Permeation Chromatography (GPC) Industry Report is ... of the global gel permeation chromatography industry with a ... a basic overview of the industry including definitions, classifications, ...
(Date:8/22/2014)... Greenville, SC (PRWEB) August 22, 2014 ... that indisputable acknowledgement is a national disgrace. Furthermore, ... part in establishing the current, deplorable state of ... outlined "5 great mistakes," to merely serve as ... convey the extent of colossal failure(s) that have ...
(Date:8/21/2014)... 2014 2014 Deep Research ... a professional and in-depth research report on ... basic Seaweed Fertilizer information, including Seaweed Fertilizer ... as well as industry overview. This research ... market as well as global industry analysis ...
Breaking Biology Technology:From happiness to pain: Understanding serotonin's function 2Global and China Gel Permeation Chromatography (GPC) Industry Report 2014 25 Great Mistakes in Healthcare and How to Fix Them by Dr. Ira Williams 2Internationals Seaweed Fertilizer Industry 2014 Development Trend Analysis in New Research Study at DeepResearchReports.com 2Internationals Seaweed Fertilizer Industry 2014 Development Trend Analysis in New Research Study at DeepResearchReports.com 3
... Therapeutics,Inc. (Nasdaq: CVTX ) today reported financial results for ... For the quarter ended December 31, 2007, the Company reported ... compares to a net loss of,$68.1 million, or $1.18 per ... $0.58 per share, for the prior quarter ended September 30,2007. ...
... MANASQUAN, N.J., Feb. 26 BioSpace, the world,s ... career fair company,welcomed over 900 biotechnology and pharmaceutical ... Massachusetts on February 19, 2008., Thirty-six bioscience ... thoroughly impressed with the quality as well as ...
... Microsoft Gold Certified Partner Provides Framework, for ... Solutions, ORLANDO, Fla., Feb. 26 ... software and services for health and,human services ... Certified Partner status in the Microsoft Partner ...
Cached Biology Technology:CV Therapeutics Reports 2007 Fourth Quarter and Full Year Financial Results 2CV Therapeutics Reports 2007 Fourth Quarter and Full Year Financial Results 3CV Therapeutics Reports 2007 Fourth Quarter and Full Year Financial Results 4CV Therapeutics Reports 2007 Fourth Quarter and Full Year Financial Results 5CV Therapeutics Reports 2007 Fourth Quarter and Full Year Financial Results 6CV Therapeutics Reports 2007 Fourth Quarter and Full Year Financial Results 7CV Therapeutics Reports 2007 Fourth Quarter and Full Year Financial Results 8BioSpace Boston Career Fair Attracts over 900 Bioscience Candidates 2Netsmart Technologies Announces Development Program on Microsoft for Local Public Health Clinic Management and Vital Records Software 2Netsmart Technologies Announces Development Program on Microsoft for Local Public Health Clinic Management and Vital Records Software 3
... is pleased to offer the ATTO-TAG ... detection of primary amines. Developed by ... the ATTO-TAG reagents are similar to ... (NDA) and anthracene-2,3-dicarboxaldehyde, all of which ...
...
...
Human Cystatin A MAb (Clone 224705)...
Biology Products: