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:10/11/2019)... ... October 11, 2019 , ... Advanced Clinical, a clinical ... Pavel Tyan has been appointed Therapeutic Lead for Oncology. Dr. Tyan brings a ... already strong scientific and delivery credentials previously offered at Advanced Clinical. , Dr. ...
(Date:10/8/2019)... ... October 08, 2019 , ... Enplug , a ... easier than ever for businesses and organizations to use their digital signage networks ... to count down to or count up from date-related milestones, while the Holidays ...
(Date:10/3/2019)... ... October 01, 2019 , ... The ... of chemicals, reagents, and medias and to be a more environmentally sustainable evolution ... culmination of years of experience and feedback from the original version we launched ...
Breaking Biology News(10 mins):
(Date:10/10/2019)... ... October 09, 2019 , ... ... Montgomery County middle school and high school students have improved neuro-cognitive executive skills ... techniques and physical fitness, and apply lifelong social/interpersonal, leadership, problem-solving and coping skills, ...
(Date:10/8/2019)... ... October 08, 2019 , ... Today, Massachusetts stem cell biotechnology company ... technology. Like the company’s precursor patent, approved in the U.S. in 2017, the ... stem cells. Asymmetrex now markets the technology in the U.S. as the AlphaSTEM ...
(Date:10/3/2019)... ... October 02, 2019 , ... eKare’s inSight® digital 3D ... Health Accelerator run by the East Midlands Academic Health Science Network (EMAHSN), the innovation ... technology in NHS by providing support to develop and deploy solutions to the most ...
(Date:9/24/2019)... ... September 24, 2019 , ... Drug resistance has been declared as one of ... MRSA becoming one of the most serious concerns. Hong Kong cannot be spared from ... MRSA (CA-MRSA), or a seven-fold of the figure in 2007 – the year the ...
Breaking Biology Technology:
Cached News: