Assessing Water Quality Trends in Affected Ontario Lakes
Unfortunately, for many lakes, long-term monitoring information on bloom history, productivity and nutrient levels, water column temperature, and other factors that may contribute to algal bloom formation often only exist for the last few years, if at all. Paleolimnology offers valuable insights into past environmental conditions to improve our understanding of current lake management issues.
Toxin Risk – Tools for Warning
Increased frequency and severity of cyanobacterial blooms suggests that toxins are a threat that must be taken seriously. However, not all cyanobacteria are toxic – so how can we know which blooms pose a health risk? We developed both now- casting and forecasting approaches based on a nine-year data set of microcystin concentrations collected biweekly from Buffalo Pound during summer months
Transport of Microcystins from Lakes & Reservoirs to Coastal Environments
While many cyanobacteria species can produce microcystins, these toxins are often associated with Microcystis, a genus that thrives in warm, nutrient rich waters. Although Microcystis is normally associated with freshwater ... it has been shown to survive in even higher salinities and can sustain growth for short periods in pure seawater.
Beyond Total Microcystins
Although there are over 100 known variants of microcystins, there remains a great deal of variation in the way microcystins are analyzed, quantified, and reported in the literature and by monitoring agencies. An important shortcoming ... is the reliable reporting of different microcystin variants, as well as the use of comparable laboratory techniques.
Old Habits are Hard to Break: Modern HABs, Nitrogen, Lake Management
The question for many scientists studying the fate of this “new” reactive nitrogen in aquatic systems is: Since decades of phosphorus-focused management has not prevented them from occurring, what is promoting non-nitrogen-fixing cyanobacteria, causing them to form blooms and produce toxins? A growing body of evidence shows that the amount and form of nitrogen available to primary producers plays an important role in answering this question.
NALMS Notes May / June 2017
The new issue of NALMS Notes is out!
In this issue:
July is Lakes Appreciation Month!
News From Our Affiliates
President’s Message
NALMS Seeks Editor for LakeLine
New From Region 1
International Rainy-Lake of the Wood Watershed Forum
Membership in Motion
Conferences & Events
Call for Board of Directors Nominations
Call for Achievement Awards Nominations
Lake News & Information
NLA Training in Region 6
NALMS 2017: Finding Balance
News From Our Student Director
Reservoir Fisheries Habitat Partnership
Seeking Editor for LakeLine Magazine
The North American Lake Management Society (NALMS) seeks an editor for LakeLine Magazine, a quarterly publication that informs and educates readers about current issues regarding lakes and lake management. Issues are theme-based with all of the articles addressing a specific topic. Most NALMS members primarily receive the magazine in print.
The ideal candidate must possess:
A bachelor's degree or higher in the water resources field.
Working knowledge of NALMS and its history.
Excellent verbal and written communication skills.
Superior English ...
Student Video Series: Macrophytes
Request for NALMS Student Video Series: "Macrophytes"
NALMS is seeking student-produced videos related to "Macrophytes" for inclusion in the video series hosted on the NALMS YouTube channel and website.
In addition to the basic requirements (which can be found in the Video Evaluation Rubric), this video must also cover:
Explanation of major macrophyte groups (free-floating, rooted, emergent, etc.)
Role of macrophytes (or a particular macrophyte) in structuring habitat in lake ecosystems
Explanation of macrophyte collection and identification
Appropriate ...
NALMS Notes March / April 2017
The new issue of NALMS Notes is out!
In this issue:
Looking Back at the 2016 Secchi Dip-In
President’s Message
NALMS News
News From Region 3
News From Region 9
News From Region 11
News From Our Affiliates
Lake News & Information
Conferences & Events
Lake Photo of the Month
NALMS 2017
NALMS 2017 Call for Abstracts
Request for Student Videos #2
Request for NALMS Student Video Series: "Lake Mixing and Stratification"
NALMS is seeking videos of "Lake Mixing and Stratification" for inclusion in the video series hosted on the NALMS YouTube channel and website.
In addition to the basic requirements (which can be found in the Video Evaluation Rubric), this video must also cover:
Lake stratification: laboratory or animated visual example encouraged
Explanation of the thermocline, epilimnion, and hypolimnion
Lake mixing: Audio-visual explanation of fall overturn and spring stratification
...