Navigation Links
Fish farms drive wild salmon populations toward extinction
Date:12/13/2007

A study appearing in the December 14 issue of the journal Science shows, for the first time, that parasitic sea lice infestations caused by salmon farms are driving nearby populations of wild salmon toward extinction. The results show that the affected pink salmon populations have been rapidly declining for four years. The scientists expect a 99% collapse in another four years, or two salmon generations, if the infestations continue.

The impact is so severe that the viability of the wild salmon populations is threatened, says lead author Martin Krkosek, a fisheries ecologist from the University of Alberta. Krkosek and his co-authors calculate that sea lice have killed more than 80% of the annual pink salmon returns to British Columbias Broughton Archipelago. If nothing changes, we are going to lose these fish.

Previous peer-reviewed papers by Krkosek and others showed that sea lice from fish farms can infect and kill juvenile wild salmon. This, however, is the first study to examine the population-level effects on the wild salmon stocks.

It shows there is a real danger to wild populations from the impact of farms, says Ray Hilborn, a fisheries biologist from the University of Washington who was not involved in the study. The data for individual populations are highly variable. But there is so much of it, it is pretty persuasive that salmon populations affected by farms are rapidly declining.

According to experts, the study also raises serious concerns about large-scale proposals for net pen aquaculture of other species and the potential for pathogen transfer to wild populations.

This paper is really about a lot more than salmon, says Hilborn. It is about the impacts of net pen aquaculture on wild fish. This is the first study where we can evaluate these interactions and it certainly raises serious concerns about proposed aquaculture for other species such as cod, halibut and sablefish.

The data are from
'/>"/>

Contact: Matt Wright
mwright@seaweb.org
617-835-9395
SeaWeb  
Source:Eurekalert

0

GOOD

Page: 1 2 3 4

Related biology news :

1. The power of multiples: Connecting wind farms can make a more reliable - and cheaper - power source
2. Evolution is driven by gene regulation
3. Bursts of waves drive immune system soldiers toward invaders
4. Adaptation to parasites drive African fishes along different evolutionary paths
5. Savanna habitat drives birds, and perhaps others, to cooperative breeding
6. Uncertainty drives the evolution of cooperative breeding in birds
7. How the plant immune system can drive the formation of new species
8. Scientists fear rare dolphin driven to extinction by human activities
9. Nutrient pollution drives frog deformities by ramping up infections, says CU-Boulder study
10. Newfound ancient African megadroughts may have driven the evolution of humans and fishes
11. Stem cell nuclei are soft hard drives, Penn study finds
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Fish farms drive wild salmon populations toward extinction
(Date:5/21/2013)... University of Illinois at Chicago College of Medicine will study ... -- its main energy source -- and how changes in ... new $2 million, 4-year grant from the National Heart, Lung ... it uses fuel for energy. These changes may play a ... different in men and women, says E. Douglas Lewandowski, director ...
(Date:5/21/2013)... the past few decades, scientists have developed many devices ... metallic stents. While generally effective, each of these treatments ... A new study from MIT analyzes the potential usefulness ... angioplasty balloons and drug-releasing stents, but may pose fewer ... in the artery for only a brief period, during ...
(Date:5/21/2013)... ANDOVER, Mass. , May 21, 2013 ... that CX50 xMATRIX, the world,s first portable ultrasound with ... Intracardiac Echo (ICE) capability. The CX50 xMATRIX with available ... Paris at the EuroPCR, official ... (EAPCI), May 21-24. Since its launch in ...
Breaking Biology News(10 mins):Do men's and women's hearts burn fuel differently? 2Evaluating a new way to open clogged arteries 2Evaluating a new way to open clogged arteries 3Philips CX50 xMATRIX now offers world-class interventional and diagnostic features on single portable system 2
... may be the latest recipe for success when it comes ... the recent popular attention to the distance that food travels ... Christopher L. Weber and H. Scott Matthews argue in an ... that it is dietary choice, not food miles, which most ...
... lizards use to grab their grub influences how they move, ... team led by doctoral student Eric McElroy tracked 18 different ... to understand how their foraging styles impact their biomechanics. The ... the April 1 edition of the Journal of Experimental Biology. ...
... of Arctic sea ice is increasingly vulnerable to summer ... the National Center for Atmospheric Research (NCAR) and Colorado ... to last summer,s record loss of Arctic ice, while ... to have had comparable impacts. The study, which ...
Cached Biology News:Carnegie Mellon studies how climate change impacts food production 2Lizard hunting styles impact ability to walk, run 2Arctic ice more vulnerable to sunny weather, new study shows 2Arctic ice more vulnerable to sunny weather, new study shows 3
(Date:5/21/2013)... The results of a new study led by ... computational evidence that nucleation of ice in small ... understanding water,s behavior at the nanoscale. The formation ... basic scientific research question whose answer also has ... , The crystallization of ice from supercooled ...
(Date:5/21/2013)... Savoury Systems International (SSI), a leader in the ... USA Sales Broker. Braddy’s new role will allow SSI ... , In 2004 Braddy founded Southeastern Food ... processors and industrial manufacturers. Braddy has worked for ... has over 25 years of sales management experience. ...
(Date:5/21/2013)... According to a new market ... "Biochip Products and Services Market (Microarrays, Reagents, Drug Discovery, ... Share, Growth, Trends and Forecast, 2012 - 2018," the market was valued ... to grow at a CAGR of 10.1% from 2012 ... 4.7 billion in 2018. Browse the full ...
(Date:5/21/2013)... PA (PRWEB) May 21, 2013 ... today announced that Dr. Charles Signorino, the Company’s Chief ... April 1, 2013 after 32 years of service. As ... Gomez, Emerson’s current President, has been named as Dr. ... luminary in the pharmaceutical industry, having made a significant ...
Breaking Biology Technology:Study led by GW professor provides better understanding of water's freezing behavior at nanoscale 2The U.S. Biochip Products and Services Market is Expected to Reach USD 4.7 Billion in 2018: Transparency Market Research 2The U.S. Biochip Products and Services Market is Expected to Reach USD 4.7 Billion in 2018: Transparency Market Research 3The U.S. Biochip Products and Services Market is Expected to Reach USD 4.7 Billion in 2018: Transparency Market Research 4The U.S. Biochip Products and Services Market is Expected to Reach USD 4.7 Billion in 2018: Transparency Market Research 5Emerson Resources Announces CEO Retirement and Appointment of Successor 2Emerson Resources Announces CEO Retirement and Appointment of Successor 3
... GERMANTOWN, Maryland and DES PLAINES, Illinois, October 12, 2010, ... ... ... // Results are keyed by longUrl, so we need to grab the first one. for (var r ...
... WaferGen Biosystems, Inc. (OTC Bulletin Board: WGBS ... today announced that Gary P. Schroth, Ph.D., who helped ... gene expression at Illumina, Inc., has joined the company ... new position created to build on the company,s technology ...
... than 200 researchers in attendance at the seventh ... that facilitate data-driven research: the Microsoft Biology Foundation ... (Logo: http://photos.prnewswire.com/prnh/20000822/MSFTLOGO ) (Logo: ... bioscience now have access to the first version ...
Cached Biology Technology:QIAGEN and Abbott Enter Into Agreement on Molecular Tests for HIV, HCV and HPV 2QIAGEN and Abbott Enter Into Agreement on Molecular Tests for HIV, HCV and HPV 3QIAGEN and Abbott Enter Into Agreement on Molecular Tests for HIV, HCV and HPV 4QIAGEN and Abbott Enter Into Agreement on Molecular Tests for HIV, HCV and HPV 5QIAGEN and Abbott Enter Into Agreement on Molecular Tests for HIV, HCV and HPV 6QIAGEN and Abbott Enter Into Agreement on Molecular Tests for HIV, HCV and HPV 7QIAGEN and Abbott Enter Into Agreement on Molecular Tests for HIV, HCV and HPV 8QIAGEN and Abbott Enter Into Agreement on Molecular Tests for HIV, HCV and HPV 9QIAGEN and Abbott Enter Into Agreement on Molecular Tests for HIV, HCV and HPV 10WaferGen Names Gary P. Schroth, Ph.D., as New SVP, Genomics Research and Applications 2WaferGen Names Gary P. Schroth, Ph.D., as New SVP, Genomics Research and Applications 3WaferGen Names Gary P. Schroth, Ph.D., as New SVP, Genomics Research and Applications 4WaferGen Names Gary P. Schroth, Ph.D., as New SVP, Genomics Research and Applications 5Microsoft Research Makes Microsoft Biology Foundation and MODISAzure-Based Environmental Service Available to Scientists and Researchers 2Microsoft Research Makes Microsoft Biology Foundation and MODISAzure-Based Environmental Service Available to Scientists and Researchers 3Microsoft Research Makes Microsoft Biology Foundation and MODISAzure-Based Environmental Service Available to Scientists and Researchers 4
... Rabbit polyclonal to MLF1 Interacting ... for all tested applications). ... corresponding to amino acids 73-83 of ... Entrez Gene ID: 359815 ...
... 25 H 27 N 2 NaO 7 S ... Dark burgundy metallic powder Identity: By IR epsilon ... cm): greater than or equal to 60 x ... or equal to 10.0% lambda max ...
... Quixell, manufactured by Stoelting, selects single ... control. In no time at all, a ... on the keypad...the cell is collected into ... individual wells of a microtiter plate. Quixells ...
... genome-wide microRNA expression profiling and built ... microfluidic on-chip synthesis platform. These microarrays ... comprehensive microRNA Expression Profiling Service. ... microRNA Microarray contains all known virus ...
Biology Products: