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The Importance of Aquatic Plant and Invasive Species Monitoring for Healthy Waterways

Writer: Robert LofgranRobert Lofgran

Updated: 2 days ago

Monitoring aquatic plants and invasive species is essential for maintaining the ecological health and beauty of ponds, lakes, and other waterways. A balanced aquatic environment not only improves water quality but also ensures a thriving ecosystem for fish and wildlife. At Wasatch Lake Management, we take an active approach to managing aquatic plants and invasive species, utilizing regular water testing and a comprehensive management program. Below, we’ll explore why monitoring is crucial and the strategies we use to stay ahead of potential issues.


Why Aquatic Plant and Invasive Species Monitoring is Important

Not all aquatic plants are harmful. In fact, native species play a critical role in oxygenating water, providing shelter for fish, and stabilizing sediment. However, when invasive plants take root, they can outcompete native species, clog waterways, and disrupt the natural balance. Some of the most problematic invasive aquatic plants include:


  • Eurasian Watermilfoil: This species spreads rapidly, forming dense mats that interfere with fishing, swimming, and boating. Treatment usually involves herbicide applications followed by mechanical removal and repeated monitoring.

  • Phragmites Australis: This tall reed is highly invasive along Utah’s waterways. Phragmites outcompetes native vegetation, creating dense stands that block access to shorelines, diminish views, and disrupt local ecosystems. It also consumes significant amounts of water. Treatment usually involves herbicide applications followed by mechanical removal and repeated monitoring over several years to prevent regrowth.

  • Curly-leaf Pondweed: This species disrupts natural water flow and crowds out native plants. It produces dense mats that can alter water temperatures and oxygen levels, creating unfavorable conditions for fish and other aquatic life. Early detection and management with herbicides or physical removal during early growth stages are crucial to control its spread.


If left unchecked, these species and others can lead to poor water quality, reduced biodiversity, and expensive restoration efforts. Monitoring is the first step in preventing these problems from escalating.


Our Monitoring and Management Strategies

1. Regular Water Testing

Water quality plays a pivotal role in controlling the spread of both native and invasive aquatic plants. We test key parameters like:

  • pH levels: A stable pH promotes balanced aquatic life.

  • Nutrient levels (nitrogen and phosphorus): Excess nutrients can fuel the growth of invasive plants and algae.

  • Dissolved oxygen: Healthy oxygen levels support fish and inhibit invasive species that thrive in stagnant, low-oxygen environments.

Regular water testing helps us detect changes early, allowing us to fine-tune our management efforts.


2. Visual Inspections and Mapping

We conduct routine visual inspections to monitor plant growth patterns. During these inspections, we:

  • Identify native vs. invasive species

  • Map problem areas for better tracking of plant spread

  • Assess seasonal changes to anticipate issues before they arise

Keeping detailed records allows us to spot trends and better predict when and where interventions may be necessary.


3. Preventive Management Practices

Our regular management program focuses on proactive solutions to minimize the impact of invasive species, including:

  • Mechanical removal: Using specialized equipment to cut and remove overgrowth.

  • Herbicide and beneficial bacteria treatments: Applying environmentally friendly herbicides and beneficial bacteria in problem areas.

  • Nutrient management: Reducing runoff from fertilizers and other pollutants that contribute to excessive plant growth.

By staying proactive, we help our clients avoid major disruptions and maintain beautiful, healthy waterways year-round.


Partner with Us for Sustainable Pond and Lake Management

At Wasatch Lake Management, we believe that healthy waterways require a blend of science, observation, and preventative care. Our monitoring services, combined with regular water testing and management strategies, ensure that aquatic plants and invasive species are kept in check, providing sustainable solutions tailored to each unique ecosystem.

If you’re ready to maintain a thriving pond or lake, contact us today to learn more about how we can help protect your waterway and keep it beautiful for years to come.

 
 
 

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