Search Results: node/"dissolved oxygen"

Dissolved Oxygen

Oxygen is a natural element which no animal can live without. Fish and other aquatic animals depend on oxygen gas dissolved in water as much as people depend on oxygen gas in air. Many people are surprised to learn that fish and other aquatic organisms don’t use oxygen from water molecules (H2O). This is because […]

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Herbicide Considerations Reference Guide—Introduction

This reference guide defines the parameters considered by aquatic plant managers and FWC biologists when formulating a management plan using herbicides in Florida waters. No single herbicide is appropriate for controlling all invasive or nuisance aquatic plant infestations. Therefore, aquatic plant managers must have a thorough understanding of how each herbicide acts in Florida aquatic […]

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Integrated Plant Management

Definitions of integrated pest management (IPM) are nearly as numerous as invasive species management programs. Most definitions acknowledge several basic components when developing an IPM plan, including the following: considering available management options understanding the biology and life cycles of target and non-target species evaluating ecosystem sensitivity to invasion by introduced organisms considering the impacts […]

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A Manager’s Definition of Aquatic Plant Control

Michael D. Netherland US Army Engineer Research and Development Center Environmental Laboratory Editor, Journal of Aquatic Plant Management Jeffrey D. Schardt Florida Fish and Wildlife Conservation Commission Invasive Plant Management Section Introduction Aquatic plant management is a complex discipline that blends the predictable sciences of water chemistry and hydrology with the highly variable parameters of […]

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Frequently Asked Questions

Fishermen, boaters, swimmers and others often question the need for, and safety of, weed control programs. Following are a few of the most frequently asked questions and answers regarding Florida's aquatic plant management program. Are aquatic herbicides safe to use? All herbicides should be handled with great care, especially in their concentrated form. Once diluted […]

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Selective Application of Aquatic Herbicides

The goal of plant managers is almost always to control invasive plants without harming the native plants that grow in the same area. To accomplish this, they must apply registered aquatic herbicides selectively. Professional managers perform selective applications through use of specially formulated herbicides, seasonal applications, selective methods, and varying concentrations. Selective Herbicides Several herbicides […]

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Freshwater Fish

Fish use aquatic plants for spawning and nursery areas, as well as for food. Some fish and their fry eat aquatic plants and the algae and small animals that are attached to the stems and leaves. Aquatic plants also offer refuge from predators such as larger fish and water birds. Submersed aquatic plants also generate […]

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Flood Control

Florida would be an entirely different state were it not for flood control. It has enabled Florida to become a top tourist destination, a popular spot for winter residents, a leading agricultural producer, and a place with thousands of waterfront homes. Flood control structure on Lake Okeechobee During the land boom of the 1920s, developers […]

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Photosynthesis

Photosynthesis is a chemical process that occurs in many forms of bacteria and virtually all plants, including aquatic plants and algae. Using just three simple ingredients (carbon dioxide, water, and sunlight) plants and bacteria are able to make their own food. Early forms of algae and bacteria were the first organisms to photosynthesize. Scientists estimate […]

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Aquatic and Wetland Plants in Florida

Our state is home to hundreds of native aquatic and wetland plants that live in damp to wet soils, and some even more specialized plants that live entirely in, on, or under water; submersed plants, emersed plants (including grasses, sedges and rushes), and floating and floating-leaved plants. These plants are technically referred to as aquatic […]

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