Spiel Posted July 16, 2010 Report Share Posted July 16, 2010 Mercury levels increasing in popular species of Lake Erie game fish JULY 15, 2010 POSTMEDIA NEWS / www.montrealgazette.com OTTAWA — Mercury levels in a species of Lake Erie game fish are increasing after two decades of steady decline, scientists report. The joint study by researchers from the Ontario and federal government and the University of Toronto is the most comprehensive to date on mercury levels in Great Lakes fish, and was published in the journal ACS Environmental Science & Technology. An analysis of the nearly 6,000 samples of lake trout and walleye collected from the lakes between the 1970s and 2007 showed that concentrations in the fish steadily declined in that period in the upper Great Lakes — Superior and Huron. But between 1990 and 2007, despite a levelling off of mercury concentrations in Lake Ontario walleye, contamination increased in Lake Erie walleye. Researchers hypothesize that the invasions of dreissenid mussels and round goby fish in the ecosystem contributed to the rise in Lake Erie mercury concentrations. High levels of mercury can potentially cause adverse health effects if affected fish are consumed. Link to comment Share on other sites More sharing options...
asdve23rveavwa Posted July 16, 2010 Report Share Posted July 16, 2010 Was wondering why I woke up with a funny glow after eating that walleye Link to comment Share on other sites More sharing options...
BillsTheBassMan Posted July 16, 2010 Report Share Posted July 16, 2010 There must be no mussels or gobies in Lake Ontario in that case . . . got to love inferences like that. Link to comment Share on other sites More sharing options...
Spiel Posted July 16, 2010 Author Report Share Posted July 16, 2010 Actually comparing Lake Ontario with Lake Erie is akin to comparing apples and oranges. Lake Erie's suitable habit for the aforementioned invasive species is vast when compared with Lake O. Link to comment Share on other sites More sharing options...
OhioFisherman Posted July 16, 2010 Report Share Posted July 16, 2010 http://www.google.com/url?sa=t&source=web&cd=8&ved=0CDYQFjAH&url=http%3A%2F%2Fwww.greenpeace.org%2Fraw%2Fcontent%2Fseasia%2Fen%2Fpress%2Freports%2Fcoal-fired-power-plants-and-th.pdf&ei=P-ZATMyZDouinQeP-cTVDw&usg=AFQjCNGa_DKaUPERau_q8-8F12FR3c1beg Despite decreasing population of most rust belt cities electrical power generation from coal fired plants continues to increase. Link to comment Share on other sites More sharing options...
canadadude Posted July 17, 2010 Report Share Posted July 17, 2010 There must be no mussels or gobies in Lake Ontario in that case . . . got to love inferences like that. Lots of both in Lake Ontario......the walleye are probably using a different forage, feeding on smelt,emerald shinner and such.Lake Erie Walleye probably forage more heavilly on Gobies which could be the reason for the rise in mercury levels Link to comment Share on other sites More sharing options...
Guest LivingLegend Posted July 20, 2010 Report Share Posted July 20, 2010 I think it adds a nice zesty taste to the fish..... No need for fish crisp. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now