Navigation Links
Scientists can track origin of shark fins using 'zip codes' in their DNA
Date:4/27/2011

STONY BROOK, NY, April 27, 2011An international team of scientists, led by the Institute for Ocean Conservation Science at Stony Brook University, has used DNA to determine that groups of dusky sharks (Carcharhinus obscurus) and copper sharks (Carcharhinus brachyurus) living in different coastal regions across the globe are separate populations of each species. Both are large apex predators that are heavily exploited for the shark fin trade, which claims tens of millions of animals every year to produce the Asian delicacy, shark fin soup. Many of these species are declining as a result of this fishing pressure for their fins.

The dusky shark is classified as "Endangered" in the Western Atlantic by the International Union for Conservation of Nature as its population is below 20 percent of what it was two decades ago. These new studies show that the genetic differences among populations of these sharks are large enough for scientists to be able to track the actual origin of the fins on sale in Asian markets, enabling better regional monitoring and management of these threatened predators.

These research findings appear in two scientific articles. "Global phylogeography of the dusky shark, Carcharhinus obscurus: implications for fisheries management and monitoring the shark fin trade," has been published online in the journal Endangered Species Research. "Phylogeography of the copper shark (Carcharhinus brachyurus) in the southern hemisphere: implications for the conservation of a coastal apex predator" will soon be published in the journal Marine and Freshwater Research. The primary objective of these studies was to identify any genetic differences among regional groups of dusky and copper sharks and establish how many distinct populations there are. The second objective was to determine if these population differences were great enough to allow scientists to reconstruct their contributions to fin trade in
'/>"/>

Contact: Cindy Yeast
cdyeast@earthlink.net
720-542-9455
Stony Brook University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Jefferson scientists deliver toxic genes to effectively kill pancreatic cancer cells
2. Scientists identify novel inhibitor of human microRNA
3. Argonne scientists peer into heart of compound that may detect chemical, biological weapons
4. MU scientists go green with gold, distribute environmentally friendly nanoparticles
5. Scientists identify gene that may contribute to improved rice yield
6. Scientists discover why a mothers high-fat diet contributes to obesity in her children
7. MU scientists see how HIV matures into an infection
8. Earth scientists keep an eye on Texas
9. Thinking it through: Scientists call for policy to guide biofuels industry toward sustainability
10. Scientists identify a molecule that coordinates the movement of cells
11. Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists can track origin of shark fins using 'zip codes' in their DNA
(Date:8/31/2014)... for sniffing the highly infectious bacteria C. diff ... been developed by a team at the University of ... has demonstrated that it is possible to identify the ... lead to rapid diagnosis of the condition., What is ... to identify different strains of the disease simply from ...
(Date:8/31/2014)... are not busy attacking us, germs go after each ... spell disaster for the infected microbes: Sometimes viruses actually ... say, expand its diet or better attack its own ... an immune system would robotically destroy anything it recognized ... University have now revealed that one variety of the ...
(Date:8/31/2014)... Nature Climate Change , suggests that if current trends ... the global targets for total greenhouse gas (GHG) emissions in ... think carefully about the food we choose and its environmental ... just one of a number of actions that need to ... is enough food for all. , As populations rise ...
Breaking Biology News(10 mins):Scientists develop 'electronic nose' for rapid detection of C. diff infection 2Discovery reveals how bacteria distinguish harmful vs. helpful viruses 2Discovery reveals how bacteria distinguish harmful vs. helpful viruses 3Changing global diets is vital to reducing climate change 2Changing global diets is vital to reducing climate change 3Changing global diets is vital to reducing climate change 4
... of Defence (MINDEF) and the Nanyang Technological University (NTU) ... strengthen Singapore,s defence science and technology research and development ... by inking a Memorandum of Understanding (MOU) at the ... the setting up of the Temasek Research Fellowship and ...
... Pharmaceutical Scientists (AAPS) is a professional, scientific society ... government and other research institutes worldwide. Founded in ... the exchange of knowledge among scientists to enhance ... scientific programs, on-going education, information resources, opportunities for ...
... tropical butterfly that potentially makes it able to distinguish between ... from the University of Bristol, UK. The team ... detection of predators, in particular birds. The Blue Morpho ... America, are more famous for their amazing wing colouration and ...
Cached Biology News:MINDEF, NTU join hands to boost Singapore's defense R&D capabilities 2
(Date:8/30/2014)... The Global and China Electrical ... study on the current state of the Electrical ... The report provides a basic overview of the ... Global market analysis and Chinese domestic market analysis ... trends and competitive landscape of the market. A ...
(Date:8/29/2014)... According to a new market report published ... market was valued at USD 3,754.6 million in 2012 and ... 2019at a CAGR of 5.9% from 2013 to 2019. , ... is afflicted by bone and joint disorders, and this number ... has and will continue to increase the demand for orthobiologics. ...
(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)... SPIE Fellow Glenn Boreman, Professor and ... and Director of the Center for Optoelectronics and Optical ... and co-founder and Chairman of the Board of Plasmonics, ... Vice President of SPIE, the international society for optics ... recent election results at the Annual General Meeting of ...
Breaking Biology Technology:Electrical Insulating Varnish Market World, China Regional Analysis & 2020 Forecasts Available at DeepResearchReports.com 2Electrical Insulating Varnish Market World, China Regional Analysis & 2020 Forecasts Available at DeepResearchReports.com 3Global Orthobiologics Market to Reach $5,519.9 Million by 2019: Transparency Market Research 2Global Orthobiologics Market to Reach $5,519.9 Million by 2019: Transparency Market Research 3Livermore Team Awarded for Hydrogen Production Research 2Glenn Boreman, UNC Professor and Plasmonics Co-Founder, Elected to SPIE Presidential Chain 2
... A new, one-year, double-blind controlled clinical study shows that ... risk in postmenopausal women with type 2 diabetes [1] ... Peter J. Curtis, Ph.D., et al , funded by ... Ltd., Israel, and Barry Callebaut, the world,s leading manufacturer of ...
... polymers will offer unprecedented control over the final polymer structure ... study published last week in the prestigious journal Nature ... in Sydney and the University of Warwick in the UK ... a combination of segregation and templating a pair of ...
... integrated circuits are found in many applications, from large ... integration is due in part to the semiconductor industry,s ... for decades. However, while silicon-based circuits continue to ... Law the prediction that the number of transistors ...
Cached Biology Technology:New Findings of Daily Consumption of Soy Isoflavones and Cacao-Flavonoids in Diabetes Type 2 Patients 2New Findings of Daily Consumption of Soy Isoflavones and Cacao-Flavonoids in Diabetes Type 2 Patients 3Bio-inspired polymer synthesis enhances structure control 2Next-generation nanoelectronics: A decade of progress, coming advances 2Next-generation nanoelectronics: A decade of progress, coming advances 3
Request Info...
SHEEP ANTI BOVINE BETA-LACTOGLOBULIN A...
Rabbit polyclonal to Somatostatin 28 ( Abpromise for all tested applications). entrezGeneID: 6750 SwissProtID: P61278...
... an essential component of the COP9 signalosome ... cellular and developmental processes. The CSN complex ... (Ubl) conjugation pathway by mediating the deneddylation ... ligase complexes. The complex is also involved ...
Biology Products: