Navigation Links
A Great Lakes mystery: The case of the disappearing species
Date:5/28/2008

rthcoming, although it is difficult to predict such outcomes with any certainty, Nalepa said.

Hook said he believes the initial step in taking action is to pinpoint causes.

"The first thing we can do is find out more precisely why they are declining," he said. "If we guess, any management decision we make could be counterproductive."

Zebra and quagga mussels were almost certainly spread to the Great Lakes from Europe or East Asia in the fresh water ballasts of oceangoing vessels, beginning in the late 1980s, Nalepa said. People need to be aware of the risks of spreading harmful invasive species and such ballasts should be more tightly regulated or possibly banned, he said. In one simple preventive measure, boats exchange their freshwater ballast for salt water ballast in the open ocean, thereby killing any freshwater species present.

The study by Seplveda used a process called gas chromatography to separate metabolites and matched them with known chemicals on a national database. Researchers identified 76 metabolites among lake-dwelling animals and 302 among the control and atrazine laboratory populations. Results from the two comparative analyses suggest that fatty acids and hydrocarbons are important to the animal's survival or may be interfered with by particular stressors.

Diporeia put on much of their weight during the spring bloom of diatoms, algal plankton they feed upon, during which energy capture and storage are particularly paramount. This leaves them vulnerable to disruptions in food or their ability to store it, a process in which fatty acids play a key role, Seplveda said.

The four-year grant includes researchers from three major universities - Purdue, University of Michigan and the State University of New York - as well as two federal institutions, Hook said.


'/>"/>

Contact: Marisol Seplveda
mssepulv@purdue.edu
765-496-3428
Purdue University
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Restoring fish populations leads to tough choice for Great Lakes Gulls
2. Woody and aquatic plants pose greatest invasive threat to China
3. Great Ape Trust to gather internationally recognized scientists for Decade of the Mind III
4. Researcher provides tool to enable determination of age of anchovies with greater precision
5. Great Ape Trust signs agreement with Universitas Nasional in Jakarta
6. Barnacles go to great lengths to mate
7. Great apes endangered by human viruses
8. New report finds great potential for Swedish medical technology
9. Great potential to improve collection, recycling of Europes electronic waste, says UN report
10. Great Ape Trust awards $127,000 for international conservation efforts
11. Meteor no longer prime suspect in great extinction
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/13/2014)... more effective treatments for cachexia, a profound wasting of ... cancer patients, raising their risk of death, according to ... been tried to reverse the condition, which may cause ... but none have had great success. , Scientists reporting ... Nature , led by Bruce Spiegelman, PhD, demonstrated that ...
(Date:7/11/2014)... the City of Entiat on Tuesday, July 8, 2014. ... grew to over 1,000 acres by evening. Three outbuildings ... investigation by the Washington Department of Natural Resources. The ... in developing fire control strategies and tactics. Other cooperators ... of Natural Resources, (WA DNR), Bureau of Land Management, ...
(Date:7/11/2014)... scientists have set a "mouse TRAP" to capture the ... recent study published in the Journal of Clinical ... technique called TRAP to extract cellular and genetic information ... scientists at the Rockefeller Institute for Medical Research in ... protein-making machinery, or ribosomes, of the cell type of ...
Breaking Biology News(10 mins):Antibody halts cancer-related wasting condition 2Antibody halts cancer-related wasting condition 3
... River in Washington, D.C. is showing multiple benefits from ... improved water clarity have increased the abundance and diversity ... to direct measurements taken during the 18-year field study. ... the lower Potomac has doubled, the area covered by ...
... YORK, Sept. 7 Reportlinker.com announces that a new ... Biomarkers - technologies,markets and companies ... This report follows the broad definition of ... measured and evaluated as an indicator of normal biological ...
... 2009, newly installed photovoltaic (PV) cells world-wide produced a peak ... 5.8 GW was located in Europe. Similarly to previous years, ... of the world,s new solar systems were installed. By the ... (existing and newly installed) was 16 GW, which is about ...
Cached Biology News:Potomac River: 10-fold increase in native submerged vegetation reflects improved water quality 2Reportlinker Adds Biomarkers - technologies, markets and companies 2Reportlinker Adds Biomarkers - technologies, markets and companies 3Reportlinker Adds Biomarkers - technologies, markets and companies 4Reportlinker Adds Biomarkers - technologies, markets and companies 5Reportlinker Adds Biomarkers - technologies, markets and companies 6Reportlinker Adds Biomarkers - technologies, markets and companies 7Reportlinker Adds Biomarkers - technologies, markets and companies 8Reportlinker Adds Biomarkers - technologies, markets and companies 9Reportlinker Adds Biomarkers - technologies, markets and companies 10Reportlinker Adds Biomarkers - technologies, markets and companies 11Reportlinker Adds Biomarkers - technologies, markets and companies 12Reportlinker Adds Biomarkers - technologies, markets and companies 13Reportlinker Adds Biomarkers - technologies, markets and companies 14Reportlinker Adds Biomarkers - technologies, markets and companies 15Reportlinker Adds Biomarkers - technologies, markets and companies 16Reportlinker Adds Biomarkers - technologies, markets and companies 17Reportlinker Adds Biomarkers - technologies, markets and companies 18Reportlinker Adds Biomarkers - technologies, markets and companies 19Reportlinker Adds Biomarkers - technologies, markets and companies 20Three-quarters of new solar systems worldwide were installed in the EU in 2009 2Three-quarters of new solar systems worldwide were installed in the EU in 2009 3
(Date:7/10/2014)... PETERSBURG, Russia , July 10, 2014 ... Russian Federation Dmitry Medvedev , presented ... biopharmaceutical company BIOCAD . The Company is developing ... scope of MabNext project BIOCAD develops a number of ... cancer and autoimmune diseases. The ceremony took place at ...
(Date:7/10/2014)... PROVO, Utah , July 10, 2014 ... genome annotation and interpretation, today announced an ... sequencing (NGS) analytics for Lineagen,s NextStep Dx ... evaluation of neurodevelopmental and neurological disorders, currently ... chromosomal microarray (CMA) testing service used by ...
(Date:7/10/2014)... 2014   Ceres, Inc . (Nasdaq: ... today financial results for the three months ended May ... Ceres reported that the company and its ... growing season in Brazil, which concluded in June, despite ... evaluation areas for part of the growing season. Yields ...
(Date:7/10/2014)... may help in the fight against terrorism with the ... of explosives with the use of light and special ... and Actuators B: Chemical , the researchers describe a ... concentrations as low as 6.3 ppm (parts per million). ... minutes. , "Traditionally explosives detection has involved looking for ...
Breaking Biology Technology:Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 3Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 3Ceres Announces Fiscal Third Quarter 2014 Financial Results 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 5Ceres Announces Fiscal Third Quarter 2014 Financial Results 6Ceres Announces Fiscal Third Quarter 2014 Financial Results 7Ceres Announces Fiscal Third Quarter 2014 Financial Results 8Ceres Announces Fiscal Third Quarter 2014 Financial Results 9Detecting trace amounts of explosives with light 2
... Diagnostics, a leading developer of biofluid-based molecular diagnostic ... the appointment of David Okrongly, Ph.D., as chief ... medical officer, and Sally Bowden, Ph.D., as director ... of cardiothoracic surgery Harvard University and Michael Manyak, ...
... Glioblastoma is one of the most aggressive forms ... tumor, glioblastoma will often infiltrate the surrounding brain tissue, ... chemotherapy or radiation. Likewise, several mouse models of glioblastoma ... a new study, a team led by scientists at ...
... announced today the launch of Curve™ Image Guided Surgery. ... surgery, is unveiling at the Congress of Neurological Surgeons ... of enhancements based on years of feedback from our ... for Brainlab and has helped to produce the ultimate ...
Cached Biology Technology:Exosome Diagnostics Announces Additions to Management and Scientific Advisory Board as Company Expands Clinical Validation Studies in Oncology 2Exosome Diagnostics Announces Additions to Management and Scientific Advisory Board as Company Expands Clinical Validation Studies in Oncology 3Exosome Diagnostics Announces Additions to Management and Scientific Advisory Board as Company Expands Clinical Validation Studies in Oncology 4Exosome Diagnostics Announces Additions to Management and Scientific Advisory Board as Company Expands Clinical Validation Studies in Oncology 5Nanoparticles seek and destroy glioblastoma in mice 2Nanoparticles seek and destroy glioblastoma in mice 3Brainlab Launches Newest Innovation in Image Guided Surgery Technology 2Brainlab Launches Newest Innovation in Image Guided Surgery Technology 3
BI-1 Polyclonal Antibody Storage Temperature: -20C Shipping: gel pack Shelf-Life: 12 months...
... cells of embryonal carcinoma of testis and ovary ... like seminoma. Glandular epithelium of yolk sac tumor ... cells of stomach and acini cells of pancreas ... Epitope: Carbohydrate portion on human embryonal carcinoma ...
... Endothelin-1 (human, porcine) Endogenous potent ... ETA receptor and modulates vascular tonus. ET-1, ... three distinct endothelin genes. ET-2 and ET-3 ... two and six amino acids, respectively. All ...
HP 1 alpha Immunogen: Synthetic peptide between amino acids 1-100 of the human HP 1 alpha protein. Storage: -20 C, Avoid Freeze/Thaw Cycles...
Biology Products: