Navigation Links
DNA analysis suggests under-reported kills of threatened whales

o estimate the abundance of living whales in the while, it had not previously been used to estimate the number of dead whales available in trade. The analysis uses the frequency of whales found only once in a survey, and those found more than once in the same or later surveys.

The DNA profiling and capture-recapture analysis allowed the researchers to estimate how long an individual whale was available for sale in the markets ?a process they compare to the decay of radio-isotopes. Fewer meat products from an individual whale remain on the market with each succeeding week, and their estimate of six weeks for the "half-life" of an individual whale gives future researchers a good idea of how frequently they will need to survey markets.

Whale meat is rarely frozen in Korea. It is usually par-boiled immediately after purchase by wholesalers or retailers and then sold over the next few weeks in thick slices of skin, blubber and meat ?usually without refrigeration.

Using their "capture-recapture" model, which is based on statistical probability, the researchers estimate that the true number of minke whales that likely passed through Korean markets from 1999 to 2003 was probably 827 individuals, or nearly twice the number in official reports.

"If the mortality is really twice as great as the number reported to the government and to the International Whaling Commission, it has major implications for the survival of the species," Baker said. "Researchers who have done sighting surveys of minke whales report difficulty in even locating the whales, and it has been hard to reconcile the small numbers sighted at sea with the numbers reported via bycatch.

"This means that there is no accepted estimate of the total abundance of this population," Baker added, "but it seems likely that it is small and declining because of the unregulated exploitation."

The study focused on minke whales in the Sea of Japan known as "J stock.
'"/>

Source:Oregon State University


Page: 1 2 3

Related biology news :

1. GATA: a graphic alignment tool for comparative sequence analysis
2. Global analysis of membrane proteins
3. Doctors closer to using gene analysis to help trauma patients
4. Agilent Technologies new genome analysis technology set to accelerate Australia fight against mesothelioma
5. New miniaturised chip dramatically reduces time taken for DNA analysis
6. Researchers develop promising new gene network analysis method
7. New technique may speed DNA analysis
8. Locusts built-in surface analysis ability directs them to fly overland
9. NASA satellite data provides rapid analysis of Amazon deforestation
10. NCAR analysis shows widespread pollution from 2004 wildfires
11. Genetic analysis of cavefish reveals more about evolution
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: DNA analysis suggests under reported kills threatened whales

(Date:7/31/2014)... the photovoltaic effect in 1839, humankind has sought to ... its own purposes. In a new research report published ... FASEB Journal , scientists may have uncovered a ... focusing on a naturally occurring combination of lipids that ... over time and across speciessuggests that this specific natural ...
(Date:7/31/2014)... In the same week that the U.S. surgeon ... skin cancer, researchers at Montana State University published a ... genetic code in every cell responds when exposed ... understanding of DNA damage by the UV rays found ... aging and some degenerative eye diseases. , "Our ...
(Date:7/31/2014)... Professor of Clinical Surgery at LSU Health Sciences Center ... team of plastic and reconstructive surgeons who report a ... select patients for a specific surgical migraine treatment technique. ... surgery to decompress the nerves that trigger migraines experienced ... The study, which confirms the benefit of surgical treatment ...
Breaking Biology News(10 mins):Scientists shine bright new light on how living things capture energy from the sun 2New paper describes how DNA avoids damage from UV light 2New paper describes how DNA avoids damage from UV light 3Surgeons report significant migraine relief from cosmetic eyelid surgery technique 2
... Diego have identified more than 70 genes that play a ... a valuable set of genetic leads for use in developing ... of nerve damage such as stroke. In the September ... detail their discoveries after an exhaustive two-year investigation of 654 ...
... A team of neuroscientists at Cold Spring Harbor Laboratory ... system for locating and tracking a vital class of brain ... living animals. The cells in question are ... (gamma aminobutyric acid). GABA neurons function to inhibit or ...
... mussels, squids as different as they may look, ... to the phylum Mollusca , also called molluscs. ... and Professor Ken Halanych, USA, with the participation of ... research into the relationships among different molluscs as part ...
Cached Biology News:UC San Diego biologists discover genes that repair nerves after injury 2UC San Diego biologists discover genes that repair nerves after injury 3Team creates genetic 'GPS' system to comprehensively locate and track inhibitory nerve cells 2Team creates genetic 'GPS' system to comprehensively locate and track inhibitory nerve cells 3Team creates genetic 'GPS' system to comprehensively locate and track inhibitory nerve cells 4Research into molluscan phylogeny reveals deep animal relationship of snails and mussels 2Research into molluscan phylogeny reveals deep animal relationship of snails and mussels 3
(Date:7/31/2014)... , July 31, 2014 Research ... "Global Genomics Market 2014-2018" report to their ... Genomics is the study of the genetic material ... be a strong basis for the discovery and development ... human diseases or health conditions. Genomics is supported by ...
(Date:7/31/2014)... July 31, 2014 Held at the ... with an overview of the disease and its treatment. ... side effects, as well as updates on the state-of-the-art ... Dr. Sandy Srinivas for organizing this educational opportunity,” says ... cancer. “Sandy and her colleagues have put together a ...
(Date:7/31/2014)...   BioLife Solutions , Inc. (NASDAQ: ... proprietary clinical grade hypothermic storage and ... products for cells and tissues, today announced today ... be released on Thursday, August 7, 2014, and that ... webcast at 4:30 p.m. ET that afternoon. Management will ...
(Date:7/30/2014)... , July 30, 2014 Regulus Therapeutics ... company leading the discovery and development of innovative medicines ... results and highlights for the quarter ended June 30, ... financial markets close. Regulus will host ... 2014, at 5:00 pm Eastern Daylight Time to discuss ...
Breaking Biology Technology:Global Genomics Market 2014-2018: Key Vendors are F. Hoffmann-La Roche, Life Technologies, Qiagen and Illumina 2BioLife Solutions to Report Financial Results for Second Quarter 2014 and Provide Business Update on August 7, 2014 2Regulus Announces Timing for Second Quarter 2014 Financial Results Webcast and Conference Call 2Regulus Announces Timing for Second Quarter 2014 Financial Results Webcast and Conference Call 3
... , Up to 50X ... Removes trace quantities of , ... RNase-free and recombinant in , ... lower in RNase activity than bovine pancreas , ...
... , ... fastest, easiest, and most consistent method for PAGE purification of ... , which was designed for the visualization of small nucleic ... for the purification of RNA , and DNA. ...
... ActivePro In Vitro Translation Kit , ... activity than those from other E. , coli lysate systems ... of prokaryotic and eukaryotic proteins , Fast translation and high protein ... , You really can have it all with the the , ...
Cached Biology Technology:TURBO DNase: Hyperactive, Salt Tolerant DNase 2TURBO DNase: Hyperactive, Salt Tolerant DNase 3TURBO DNase: Hyperactive, Salt Tolerant DNase 4TURBO DNase: Hyperactive, Salt Tolerant DNase 5Ultra-Fast Purification of Small Nucleic Acids 2Ultra-Fast Purification of Small Nucleic Acids 3Ultra-Fast Purification of Small Nucleic Acids 4Ultra-Fast Purification of Small Nucleic Acids 5Translate High Yields of Active Protein 2Translate High Yields of Active Protein 3
... The Model 1575 immunowash microplate washer, 100-240 ... that have flat-, U-, or V-bottom wells. ... vertical needle positions to an accuracy of ... and overflow washing. It can store up ...
... is a compact benchtop and stackable ... controller with a large display screen ... speed. Air circulation inside to evenly ... can be easily calibrated from the ...
... Incubator is a compact benchtop and ... microprocessor controller with a large display ... agitation speed. Air circulation inside to ... Temperature can be easily calibrated from ...
... Biotin label transfer is fast emerging ... interaction discovery and confirmation. Until now, only ... targeted with label transfer reagents such as ... chain analog, Mts-Atf-LC-Biotin, are exciting additions to ...
Biology Products: