 | Aquatic Consulting & Testing, Inc |
Algae & Aquatic weedsIdentification Suspended (Planktonic) Algae: Although identification to the genus level is most common, AC&T staff can identify freshwater algae to the taxonomic level of your choice, from major division to species. Algae identification can be expanded to provide total and differential counts and percent composition. Taste and odor and filter plugging forms can also be noted. Attached algae (periphyton): AC&T staff can identify periphyton to genus or species level, depending on the need of the study. Total and differential counts per unit can be calculated based on the area sampled. Submerged macrophytes: AC&T staff use a number of taxonomic keys to identify submerged aquatic weeds. This data is commonly used to identify invasive species or to determine appropriate herbicides to use in density management. Emergent aquatic vegetation: As with other aquatic forms, AC&T personnel use a number of taxonomic keys to identify these plants. This data is commonly used to determine appropriate herbicides to use in density management. Management AC&T personnel can assess aquatic systems in terms of aquatic vegetation and water quality conditions to identify appropriate vegetation control measures. These measures may include an integrated plan composed of physical removal or exclusion, introduction of biological predators, and use of EPA-registered aquatic herbicides or other water treatment chemicals. AC&T and their personnel are licensed by Arizona Structural Pest Control Commission to provide recommendations and to make aquatic chemical applications Physical Methods: AC&T personnel can evaluate lake conditions to determine if physical removal of plant material is possible. Removal can include filtration or sedimentation of algae, or cutting and harvesting of submerged or emergent weeds. Biological Methods: For some aquatic plants, herbivorous fish are an economically sound method of density management. Herbivorous fish can often provide years of submerged weed control. AC&T works with the client to identify the current level of weed infestation and determines the proper stocking density based on level of control required. AC&T can also arrange for all stocking permits and delivery of fish at competitive prices through their supplier. Chemical: When use of physical or biological management options are not conducive to the situation, chemical alternatives exist for management of all types algae and aquatic weeds. After identifying the species of concern, AC&T personnel will identify the chemicals or aquatic herbicides that can manage the growth. The chemicals may include flocculants such as alum or polymers, light-reducing water-soluble dyes, algaecides containing copper, endothall, or peroxide, and any of a variety of aquatic (weed) herbicides. Product options, dosages, frequency of application, potential hazards to non-target organisms, and total material costs and labor charges are always provided to the client for their review and input into selection. |