Chapter 4 - A Citizen's Manual for Developing Integrated Aquatic Vegetation Management
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Identify Management Goals (Step B)


Setting Aquatic Plant Management Goals

Once a problem statement has been drafted for your water body, the next step is to come up with specific management goals. Management goals define what the community wants to achieve in response to the aquatic plant problems. Defining goals helps in selecting the best methods which form the heart of the Plan.

It is important to understand the difference between management goals and management methods. The goals are conditions in the water body that the community wants to achieve, and the methods are the means of attaining those conditions. A goal, for example, might be to reduce aquatic plant growth near a swimming beach so that it is no longer a safety hazard. Mechanical harvesting of the plants or stocking the lake with grass carp that will eat the plants might be methods eventually selected to achieve that goal. But the method selected cannot be chosen before the community establishes its goals and examines other critical aspects of the problem.

Goal-Setting Criteria

Goal-setting begins by identifying an initial set of goals that is reasonable and realistic for the community and the water body. These initial goals must address specific uses and be attainable.

It may be useful early on to set specific criteria to aid in goal-making, such as:

  • If an exotic weed is present, give highest priority to reducing its growth.
  • Give priority to keeping a particular area clear of weeds, especially where human safety is at risk.
  • Limit community outlay to less than x dollars.
  • Reduce costs by using volunteer labor where possible.

Matching what's desirable with what's practical

Setting goals involves balancing user desire with the natural limitations of the water body and the financial limits of the community. A goal of removing all native plants in a lake is, under most circumstances, a bad choice. A lake is an active, living system, not a sterile swimming pool. Lakes with deep, rich sediments will likely continue to support lots of plants unless aggressive measures are taken in the water body. Furthermore, some control measures are very effective, but may be very costly too.

If the community chooses not to do anything to manage nuisance plants, it is critical to understand the possible consequences. Will there be impacts on human safety, recreational uses, or aquatic life and habitat if problem conditions in the lake are allowed to continue? Consequences of the no action management goal become particularly important when a water body is infested with an invasive, nonnative weed. In a shallow lake, these invaders can wreak havoc on the environment, recreation, and ultimately finances. The establishment of desirable and acceptable management goals results from conducting well-planned community meetings backed by strong efforts to present all information and gain broad based support.

Example of Aquatic Plant Management Goals

Here is an example of management goals for Lake Tranquil: "The management goals are to maintain recreational and habitat used of the lake by removing milfoil from known locations, and to keep swimming areas clear of weeds for safety reasons". Additional goals are to choose appropriate plant control methods that are environmentally sensitive, and that reduce overall control costs by using volunteer labor when possible.

Tip: As you move through the planning process, you will continue to learn more about your water body and plant problem. With new or more complete information available, you may need to revisit the goal-setting step to refine your management goals. An appropriate time for reviewing initial goals would be after presenting the initial problem statement and goals at a public meeting of the lake community. Another time is after determining beneficial use areas in the water body.

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Contact Kathy Hamel by e-mail at kham461@ecy.wa.gov