Navigation Links
Where have all the lake eels gone? Queen's prof asks
Date:12/14/2007

KINGSTON, Ont. A Queens University environmental scientist will head a new international study to determine whether American eels the slimy, snake-like fish considered worldwide to be a food delicacy are dying from chemical pollution in Lake Ontario.

Biology professor Peter Hodson and his team of toxicologists and chemists have received $536,450 from the Natural Sciences and Engineering Research Council (NSERC) to solve the mystery of Lake Ontarios disappearing eel population.

Declared a species of concern under Canadas new Species at Risk Act, American eels have until recently supported a multi-million-dollar historic fishery in Ontario and an even larger industry in Quebec. But with rapidly decreasing numbers of eels, the Ontario fishery has been closed and the Quebec fishery is in serious decline.

A prime suspect in the case of the missing fish is the accumulation of toxic chemicals by the parent eels as they feed, grow, and mature in polluted freshwater lakes and streams, says Dr. Hodson. Our task will be to determine whether female eels transfer sufficient chemicals to their offspring to cause their death before reaching Lake Ontario.

The team hopes to learn whether chemicals have played a role in the decline of the eel, whether some lakes and rivers are better than others for re-stocking with juvenile eels, which chemicals are the bad actors and whether eels pose a hazard to human consumers.

American eels begin their lives as eggs hatching in the Sargasso Sea near Bermuda. They take years to reach freshwater streams where they mature to a length of up to a metre before returning to their birth waters to spawn and die. However, since the mid 1980s there has been a spectacular drop in the numbers of juvenile eels migrating to Lake Ontario from the Sargasso Sea, and a corresponding decline in the numbers of adults.

The loss of eels is significant from an economic, cultural, and ecological perspective
'/>"/>

Contact: Nancy Dorrance
nancy.dorrance@queensu.ca
613-533-2869
Queen's University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Easton, PA Police Officers Armed With BIO-key(R) Mobile Data Solution Access Information Anytime, Anywhere
2. Where does stored nuclear waste go?
3. For honey bee queens, multiple mating makes a difference
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/7/2014)... BURBANK, Calif. , Nov. 7, 2014  In conjunction ... Burbank Police Departments, The Community Foundation of the ... BURBANK DNA JUSTICE PROJECT," a $250,000 initiative to ... successful initial phase. In its first six months of existence, ... desperately needed evidence support for local law enforcement. ...
(Date:11/6/2014)... asset for a predator. Except when that predator runs so ... relative to its size, is the fastest creature on Earth. ... per second (at about five miles per hour). The fastest ... sprinting gold from the tiger beetle, a person would have ... beetle has a problem. At peak speeds, everything becomes a ...
(Date:11/5/2014)... show great diversity in their ability to identify scents ... differ in their perceptual evaluation of odors, with women ... , Sex differences in olfactory detection may play ... connected to one,s perception of smell, which is naturally ... superiority has been suggested to be cognitive or emotional, ...
Breaking Biology News(10 mins):Community Foundation Of The Verdugos Unveils Campaign To Fund Glendale-Burbank DNA Justice Project 2The tiger beetle: Too fast to see 2The female nose always knows: Do women have more olfactory neurons? 2
... Amsterdam, November 17, 2009 Brain imaging can offer a ... A study conducted at the University of Kansas School of ... of even those who are healthy, but carry some risk ... the November 2009 issue of the Journal of Alzheimer,s ...
... Two University of New Hampshire assistant professors ... Early Career Development (CAREER) grants. Vaughn Cooper of ... received $1 million to better understand beneficial mutations ... data collection. Christopher White of the mechanical engineering ...
... available in German . , Scientists from ... Munich, Germany, have now deciphered the mechanism that illustrates how ... car, these cells have an engine, a clutch and wheels ... group leader at the MPI of Biochemistry. The results, which ...
Cached Biology News:2 UNH faculty receive $1.4M in CAREER grants from NSF 2Cross-country runabouts -- immune cells on the move 2
(Date:11/26/2014)... 25, 2014 Whitehouse Laboratories is ... the Morris County (New Jersey) Chamber of Commerce ... leading business organization in the North Jersey area, ... engage some key clients in the pharmaceutical and ... geographic area. Membership enables Whitehouse Laboratories a higher ...
(Date:11/26/2014)... Continuing its award-winning streak, Nerium International, the ... Awards for outstanding creative achievement by its marketing and ... the organization’s top honor, in the Branding category for ... April of this year. The event showcased top speakers ... was awarded a Gold MarCom Award in the Special ...
(Date:11/26/2014)... (PRWEB) November 25, 2014 Miles Holder, ... joined the Graphel Carbon Products team as Sales/Marketing Manager. ... marketing, and customer service for the graphite industry. , ... to our team,” stated Dave Trinkley, VP of Market ... wide range of experience in the graphite industry, along ...
(Date:11/26/2014)... November 26, 2014 2014 Deep ... an in-depth research report on the Global Palmitic ... introduces Palmitic Acid, basic information, including definition, classification, ... and news analysis, etc. , For international ... Palmitic Acid market in China and other ...
Breaking Biology Technology:Whitehouse Laboratories Joins Morris County Chamber of Commerce 2Whitehouse Laboratories Joins Morris County Chamber of Commerce 3Nerium International™ Wins One Platinum, Two Gold MarCom Awards 2Miles Holder Joins Graphel Corporation as Sales/Marketing Manager 2Palmitic Acid Industry Global 2014 Analysis & 2020 Forecasts on Market data, Statics, Development Now at ReportsnReports.com 2Palmitic Acid Industry Global 2014 Analysis & 2020 Forecasts on Market data, Statics, Development Now at ReportsnReports.com 3
... optimizing electroporation., , , , , , , , ... Pulse length , , ... , of the electroporation buffer , Influence , ... of temperature , Influence , ...
... , , , , ... in most laboratories that RNA is more susceptible , ... metal ions for activity (and can therefore easily be inactivated ... (RNases) have virtually no cofactor , requirements and ...
... TM Help ? , , , , , , ... , , As ... that is performed everyday, for a good portion , of ... Due to the nature of the tests being conducted, only short breaks , ...
Cached Biology Technology:Optimizing electroporation parameters 2Optimizing electroporation parameters 3Optimizing electroporation parameters 4Optimizing electroporation parameters 5Decontamination and inhibition of ribonucleases 2Decontamination and inhibition of ribonucleases 3Decontamination and inhibition of ribonucleases 4Ergonomics and Liquid Handling, How can BrinkmannTM Help ? 2Ergonomics and Liquid Handling, How can BrinkmannTM Help ? 3Ergonomics and Liquid Handling, How can BrinkmannTM Help ? 4
Can be used for the quantitative recovery of small amounts of nucleic acids within dilute solutions. 5mg/ml...
APOPTAG® Plastic Coverslips are designed to be custom fitted to the specific APOPTAG® kit application. Each coverslip has 2.5 x 1 dimensions....
Human VEGF-D Biotinylated MAb (Clone 78923)...
Recombinant Mouse TGF-beta RII/(human) Fc Chimera, CF...
Biology Products: