Navigation Links
A fisheries catch-22
Date:12/11/2008

Human impacts on the environment have reduced populations of wild species to dangerously low levels. Nowhere is this more apparent than in worldwide fisheries, where thanks to overfishing and habitat destruction, countless species and populations of fish are on the brink of disappearing forever. To attempt to mitigate the dire situation, captive breeding, the controlled breeding of organisms in protected environments, is regularly initiated.

Despite its popularity, does captive breeding actually work? In the current issue of Evolutionary Applications (1:4), Dr. Dylan Fraser of Dalhousie University provides a candid look at whether these breeding programs are fulfilling their mandates.

Using salmonids (the economically crucial group of fish that include salmon and trout) to illustrate his point, Fraser questions whether captive breeding is doing more harm than good. In his comprehensive review of over 300 papers, Fraser concludes that fish reared in captivity can rapidly lose the genetic diversity needed to adapt and survive in the wild, and that the rate of loss of diversity can both vary across breeding programs and be species specific. To complicate matters further, Fraser points out that that we simply do not know how captive-bred fish will perform once released back into the wild.

Unfortunately, without captive breeding to bolster their numbers, we may soon have too few individuals from which to repopulate disappearing fish populations, leaving us essentially in a fisheries catch-22.

Fraser concludes that not only do more data on the effects of captive breeding on the genetic diversity of fishes need to be collected, but also that alternatives to captive breeding, such as the live freezing of fish sperm of diverse genetic backgrounds, or the physical relocation of fish populations from one site to another, need more serious consideration.


'/>"/>

Contact: Finbar Galligan
fgalligan@wiley.com
44-018-654-76298
Wiley-Blackwell
Source:Eurekalert  

Page: 1

Related biology news :

1. Springer to publish Fisheries Science as of 2009
2. NC State takes research lead in protecting Puerto Ricos unique freshwater fisheries
3. New study offers solution to global fisheries collapse
4. LSU researchers challenge analyses on sustainability of Gulf fisheries
5. New tool for resolving fisheries conflicts
6. Fisheries should be regarded as a part of the maritime environment
7. Small-scale fishing in Mexico rivals industrial fisheries in accidental turtle deaths
8. Canadas pristine freshwater fisheries at risk
9. Canadas pristine freshwater fisheries at risk
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A fisheries catch-22
(Date:3/20/2015)... 19, 2015 Research and Markets ( http://www.researchandmarkets.com/research/rswjb4/hand_geometry ... - Global Strategic Business Report" report to their offering. ... Geometry in US$ Thousands. The report provides separate comprehensive analytics ... Japan , Europe , ... Rest of World. Annual estimates and forecasts are ...
(Date:3/18/2015)... CORAL SPRINGS, Florida , March 18, 2015 ... as well as businesses, new revolutionary smart wallets and apps ... rapid pace.  Companies currently entrenched in the mobile payment industry ... ), Alibaba Group Holding Ltd. (NYSE: BABA ), ... GOOG ) and Facebook Inc. (NASDAQ: ...
(Date:3/16/2015)... Germany , March 16, 2015 ... Identification Systems GmbH will present groundbreaking innovations in ... Hanover, Germany .      ... DERMALOG,s latest biometric innovation is well at the ... next generation e-gate made in Germany ...
Breaking Biology News(10 mins):Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 2Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 4Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 2Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 3Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 4Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 5Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 6DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 2DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 3
... recipient of the Richard King Trainee Award. This award was ... Foundation (ACMGF) to encourage ABMG trainees in their careers and ... Medicine. Each year the editorial board will review all articles ... a first or corresponding author during that year. The manuscript ...
... Cold Spring Harbor, N.Y. Being able to accurately ... would spare patients with non-responsive tumors the burden of ... important, knowing which of a patient,s cancer-causing genetic lesions ... therapy for maximum benefit. Researchers led by ...
... University of Illinois report that IDO, an enzyme found throughout ... depression, is in fact essential to the onset of depressive ... published online in the Journal of Immunology , is ... molecular switch that induces depressive symptoms in some cases of ...
Cached Biology News:Jonathan Berg, M.D., Ph.D. awarded Richard King Trainee Award for Best in Genetics in Medicine 2CSHL team develops mouse models of leukemia that predict response to chemotherapy 2CSHL team develops mouse models of leukemia that predict response to chemotherapy 3CSHL team develops mouse models of leukemia that predict response to chemotherapy 4Team identifies a molecular switch linking infectious disease and depression 2Team identifies a molecular switch linking infectious disease and depression 3
(Date:3/26/2015)... March 26, 2015 PRC Clinical, a ... today several management and executive appointments effective immediately. , ... Officer (CFO) and member of the Board of Directors. ... Operations, and Sue Dowden will assume the position of ... current Chief Operations Officer (COO), has been appointed to ...
(Date:3/26/2015)... and CINCINNATI , ... plc (LSE: SHP, NASDAQ: SHPG ) and ... three-year, broad research collaboration for rare diseases. The goal ... novel therapies to treat rare diseases with high ... capabilities with Cincinnati Children,s research expertise. As a ...
(Date:3/26/2015)... 2015 "In America," the popular news television ... that is hosted by legendary film actor James Earl Jones, ... in an upcoming segment. , Botany is commonly described ... is actually quite a bit more complicated than that. Scientists ... of living organisms, from the smallest bacteria known to man ...
(Date:3/25/2015)... MN (PRWEB) March 26, 2015 Agnition ... upcoming episode of American Farmer, airing for the first ... The segment of American Farmer will explore the extremely ... provides crop producers with a patented Microbial Catalystâ„¢ technology ... and greater yields. The segment will air again on ...
Breaking Biology Technology:PRC Clinical Announces Key Management Appointments and Launches East Coast Operations 2PRC Clinical Announces Key Management Appointments and Launches East Coast Operations 3Shire and Cincinnati Children's Establish Rare Disease Research Collaboration 2Shire and Cincinnati Children's Establish Rare Disease Research Collaboration 3Shire and Cincinnati Children's Establish Rare Disease Research Collaboration 4Shire and Cincinnati Children's Establish Rare Disease Research Collaboration 5Agnition to be Featured In Upcoming Episode of American Farmer on RFD-TV 2
... , HOUSTON, Dec. 3 ... updated its facility to offer patients a second surgical option, ... that it currently performs. The first sleeve gastrectomy procedure at the ... on October 20, 2009. The patient is reported as doing ...
... , PHILADELPHIA, Dec. 3 Shire plc ... company, today announced a voluntary recall of five lots and ... (ADHD) patch Daytrana ® . Shire is taking this action ... future may not meet their release liner removal specification, and ...
... , ... Dr. Susan Jiang, M.D., Ph.D.,Chief Science Officer at Shenzhen Beike Biotechnology ... Diabetic,Foot Care in New Delhi, India, November 22, 2009. Beike is ... The conference, organized by the Indian Podiatry Association (IPA), ...
Cached Biology Technology:JourneyLite of Houston Now Offering Sleeve Gastrectomy 2Non-safety-related voluntary recall of a limited portion of Daytrana(R) (methylphenidate transdermal system) patches announced 2Non-safety-related voluntary recall of a limited portion of Daytrana(R) (methylphenidate transdermal system) patches announced 3Non-safety-related voluntary recall of a limited portion of Daytrana(R) (methylphenidate transdermal system) patches announced 4Non-safety-related voluntary recall of a limited portion of Daytrana(R) (methylphenidate transdermal system) patches announced 5Beike Biotechnology CSO Speaks on Role of Stem Cells in Treating Diabetic Foot Disease at IPA Diabetic Foot Care Conference, India 2Beike Biotechnology CSO Speaks on Role of Stem Cells in Treating Diabetic Foot Disease at IPA Diabetic Foot Care Conference, India 3
... BMH 71-18 mutS and ES1301 mutS are ... Use of these strains prevents repair of ... to high mutation efficiencies and making them ... and Altered Sites II Mutagenesis Systems. Both ...
ELISpot kit for human Granzyme B. Kits contain PVDF plates, capture & detection antibodies, streptavidin-ALP, BSA, Skimmed dry milk, BCIP/NTB substrate, and wash buffer...
propidium iodide *1.0 mg/mL solution in water*...
1 unit is sufficient for 1 caspase activity assay....
Biology Products: