HOME >> BIOLOGY >> NEWS
Ontario researchers see increase in taste and odour-causing algae problems

(Kingston, ON) Ninety per cent of the lakes surveyed in a new study of Ontario's "cottage country" north of Toronto have seen a significant rise in taste and odour-causing algae most dramatically in the past 20 years, the researchers report.

One of the most frequent complaints voiced by cottagers to local officials is that water in their lakes periodically tastes or smells bad.

A common cause of such problems is blooms of small algae (microscopic plants) that thrive in some of these lakes. Although the frequency of taste and odour complaints seems to be growing steadily, it is unclear whether the problems themselves are increasing or if local users are more sensitized to these issues.

A study published in the current edition of the scientific journal Freshwater Biology examines sediment from 50 lake bottoms in the Muskoka-Haliburton region of Ontario. The results show taste and odour-causing algae have increased in 90 per cent of these lakes since the early 1800s, with a marked rise over the past two decades.

This phenomenon can't be blamed solely on "local human impact," says team member John Smol, Canada Research Chair in Environmental Change and co-head of Queen's University's Paleoecological Environmental Assessment and Research Laboratory (PEARL). "It's a complex of patterns, which we think involves some combination of acidic deposition and climate change," explains Dr. Smol.

"The timing indicates that these patterns are the result of one or more human-caused stresses operating at a broad, regional scale," says lead investigator Andrew Paterson, a former doctoral student at Queen's. "We present new evidence suggesting that disturbances such as acid rain and climatic warming may produce significant, unprecedented changes to the algae of inland lakes, with important implications for water quality."

Lake water that smells and tastes foul can be traced to a variety of sources, including chemical pollution and dead
'"/>

Contact: Nancy Dorrance
dorrance@queensu.ca
613-533-2869
Queen's University
8-Mar-2004


Page: 1 2

Related biology news :

1. Biocomplexity study in Lake Ontario bays and lagoons
2. Breast Milk Of Women Who Eat Lake Ontario Fish Contains High Levels Of PCBs, UB Study Finds
3. UB Study Finds No Relationship Between Male Consumption Of Lake Ontario Fish And Conception Delay
4. Native Fish Found In U.S. Lake Ontario For First Time In 50 Years
5. Eating Lake Ontario Fish Linked To Shorter Menstrual Cycles; Consumption May Delay Pregnancy
6. Belgian researchers explore revolutionary approach to angiogenesis
7. Award winning researchers reveal potential new role for Glivec
8. $7.5 Million grant to Yale researchers for role of viruses in cancer
9. New anti-inflammatory strategy for cancer therapy identified by UCSD researchers
10. Joslin researchers clarify mechanisms for beta-cell formation
11. Virginia Tech researchers to release findings on Smith River Project

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/2/2020)... ... July 02, 2020 , ... ... has announced a publication detailing the use of its revolutionary NEXTGENPCR endpoint ... reaction (RT-PCR) in 16 minutes. The article, titled "Ultra-fast one-step RT-PCR protocol ...
(Date:6/28/2020)... ... June 25, 2020 , ... In an upcoming episode scheduled ... accelerated Point of Care Testing solutions (POCT). Check local listings for more info. , ... medical offices and are shipped to labs throughout the country. Results are then available ...
(Date:6/23/2020)... ... ... The field of quantitation of large molecules or proteins has been around for a ... of mass spectrometry in this field has gained a lot of momentum in the ... approach to use (LBA or MS)?” In many cases, either technology can answer ...
Breaking Biology News(10 mins):
(Date:7/1/2020)... ... June 29, 2020 , ... MedShift , a ... 2020, despite many obstacles created as a result of COVID-19. As a provider ... partnered medical practices and medical manufacturers by expanding access to device offerings, technology ...
(Date:7/1/2020)... ... June 30, 2020 , ... ... data insights, today announced that the launch of a new clinical ... data about the tumor microenvironment (TME). , “Flagship’s TissueInsight is a service ...
(Date:6/28/2020)... ... June 25, 2020 , ... ... to develop a vaccine or drug treatment. In an effort to better understand ... publicly released the world’s largest imaging dataset portraying therapeutic compound effects from over ...
(Date:6/28/2020)... ... 26, 2020 , ... The Security Industry Association ... opposition to the recently introduced bicameral Facial Recognition and Biometric Technology Moratorium ... use of nearly all biometric and related image analytics technologies, incorrectly labeling all ...
Breaking Biology Technology:
Cached News: