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

r feeders with an overlapping diet - largely coincides with Diporeia's decline and is widely believed to be at least partially responsible. But research cannot yet explain the link, Nalepa said.

"We don't know why Diporeia are responding so negatively to the mussels," he said.

Seplveda is looking into another possible contributor to Diporeia's decline: water pollutants like pesticides, polychlorinated biphenyls (PCBs), flame retardants or others.

Detailed in a study to be published in print and online next month in the journal Aquatic Toxicology, Seplveda measured Diporeia's response to a common pollutant and also began to identify differences between declining populations in Lake Michigan and those native to Lake Superior, the only Great Lake where populations remain stable. The latter comparison found the groups shared only 5 percent of their total metabolites, suggesting that animals from the two lakes are biologically quite different, Seplveda said.

"The answer to Diporeia decline may be found in these variations," she said.

Seplveda and University of Michigan researcher Tomas Hook were awarded a four-year, $560,000 grant by the Great Lakes Fishery Trust in January of this year to further investigate possible causes for Diporeia's decline. Both researchers are co-principal investigators of the project.

"We are casting a wide net to basically address a number of hypotheses at the same time," said Hook, a fisheries ecologist hired by Purdue who will begin work there this July.

In Seplveda's study, she and her team contrasted levels of metabolites between a group of control animals and that of an atrazine-exposed population of laboratory-reared Diporeia. They found that animals subjected to atrazine, a commonly used pesticide present in minute levels in Lake Michigan, significantly increased or decreased bodily production of five identifiable chemicals. These included an insect pheromone, a fatty ac
'/>"/>

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 $127,000 for international conservation efforts
11. Meteor no longer prime suspect in great extinction
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/13/2015)... According to a recently ... & Opportunities, 2020", the global biometrics market is ... till 2020. The biometrics market is garnering attention ... review of biometric management systems. The constant development ... greater efficiency, are resulting in increasing installation of ...
(Date:4/6/2015)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... on the growing mobile commerce market, announced today ... MINIATURE, MULTI-PURPOSE ANTENNA METHOD AND SYSTEM FOR ... introduces a new revolutionary method and system to ... of miniature antenna modules for multiple purposes including ...
(Date:4/1/2015)... 2015  NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... the growing mobile commerce market, announces the second shipment ... underway to early access pre-order customers. ... retail outlets including Walmart, Target, AT&T, Dunkin, Donuts, Stop ... accepted at all outlets and very easy to use. ...
Breaking Biology News(10 mins):Global Biometrics Market to Cross US$ 21 Billion by 2020: TechSci Research 2NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 2NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 3NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 4NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 2NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 3NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 4
... to a free application that locates fueling stations ... e85 Ethanol, propane and hydrogen. The Energy Department,s ... new mobile application for DOE,s Clean Cities program. ... in an effort to cut petroleum use in ...
... -- A pioneering, multi-institution research center headquartered at ... a $15-million grant renewal from the National Science ... continue learning more about where nanoparticles accumulate, how ... affect the environment. The nanomaterials revolution ...
... researchers from the Northwestern University Feinberg School of Medicine ... School of Medicine led by Kezhong Zhang, Ph.D., has ... mechanism and specific inhibitor for the treatment of rheumatoid ... of immunology and microbiology and Wayne State,s Center for ...
Cached Biology News:NREL developed mobile app for alternative fueling station locations released 2Duke wins $15 million renewal to study nanotech safety 2Wayne State researchers discover specific inhibitor for rheumatoid arthritis treatment 2
(Date:5/4/2015)... May 4, 2015   St. Jude Children,s ... better computer tool for finding genetic alterations that ... were difficult to identify with whole-genome sequencing. The ... Nature Methods . The tool is ... Segmentation by Regression Tree in Next Generation Sequencing. ...
(Date:5/4/2015)... May 4, 2015  Tikcro Technologies Ltd. (OTCQB: TIKRF) ... on Form 20-F for the fiscal year ended December ... ("SEC"). The annual report on Form 20-F contains information ... in the area of cancer immune checkpoints. This project ... high specificity and binding in targeting certain identified immune ...
(Date:5/4/2015)... , May 4, 2015 /PRNewswire/ - Fluorinov ... to announce the appointment of Dr. Roger J ... experience guiding biotech companies in matters including corporate ... leadership team and adds significant regulatory expertise as ... Dr. Garceau brings 30 years of pharmaceutical development ...
(Date:5/4/2015)... 4, 2015  RegeneRx Biopharmaceuticals, Inc. (OTCQB: RGRX) ... independent team of researchers from South ... (TB4) plays an important role in accelerating the ... an experimental mouse model, by promoting blood vessel ... dermal tissue.  The research found that the underlying ...
Breaking Biology Technology:Scientists dramatically improve method for finding common genetic alterations in tumors 2Scientists dramatically improve method for finding common genetic alterations in tumors 3Scientists dramatically improve method for finding common genetic alterations in tumors 4Tikcro Technologies Files Annual Report on Form 20-F for the Year Ended December 31, 2014 2Roger J Garceau joins Fluorinov board, adds clinical expertise to bromodomain program and oncology pipeline 2Roger J Garceau joins Fluorinov board, adds clinical expertise to bromodomain program and oncology pipeline 3Researchers Report that Thymosin B4 has a Major Role in Dermal Burn Wound Healing 2Researchers Report that Thymosin B4 has a Major Role in Dermal Burn Wound Healing 3
... DURHAM, N.C., Jan. 10, 2011 Advanced Pain Remedies ... three million dollar grant has been received, to advance ... company that pioneered the targeting of specific cell types ... been awarded a $3 million grant from the National ...
... a newly-formed company focused on the development of innovative therapies ... closed a $20 million Series A financing led by MPM ... be focused on taking advancements from the human biopharmaceutical industry ... for animals," said Dr. David Rosen, President and Founder of ...
... Jan. 7, 2011 The Pittsburgh Life Sciences Greenhouse ... formation and business growth programs to the region,s life ... Chief Executive Officer, John W. Manzetti announcing the first ... LLC (Accelerator Fund) at $5 million. ...
Cached Biology Technology:Advanced Pain Remedies, a Subsidiary of Cato BioVentures, Announces a Three Million Dollar Award from the National Cancer Institute for SP-SAP 2Advanced Pain Remedies, a Subsidiary of Cato BioVentures, Announces a Three Million Dollar Award from the National Cancer Institute for SP-SAP 3Pittsburgh Life Sciences Greenhouse Announces the First Close of the PLSG Accelerator Fund LLC at $5 Million 2
Mouse monoclonal [4i144] to HLA Class II DQ1 7 ( Abpromise for all tested applications). Antigen: Full length protein (Human): HLA Class 2 Antigen DQ1,7....
ASCIZ...
Goat polyclonal to CHMP5 ( Abpromise for all tested applications). Antigen: Synthetic peptide: C-NKDGVLVDEFGLPQ, corresponding to C terminal amino acids 202-215 of Human CHMP5 Entrez GeneID: ...
...
Biology Products: