Aquatic Ecology Envirothon 2018-2019.

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Presentation transcript:

Aquatic Ecology Envirothon 2018-2019

River Systems Stream Order

Stream Management Plan Incorporating abiotic & biotic factors to determine the health of a waterway 1. Obtain info regarding the biological, hydrological, and geomorphological condition of identified stream reaches in the Rio Grande watershed. 2. Define and prioritize environmental, recreational, and community values. 3. Develop goals to improve flows and physical conditions needed to support values. 4. Outline actions to achieve measurable progress toward maintaining or improving goals.

Macroinvertebrates

Pollution Tolerance Index

Aquatic Food Web Caddisfly Mayfly Stonefly

Water Quality- pH & Dissolved Oxygen (DO) Colder water has more DO capacity High levels of bacteria from sewage pollution or large amounts of rotting plants can cause the % saturation to decrease. The pH scale ranges from a value of 0 (very acidic) to 14 (very basic) with 7 being neutral. The pH of natural water is usually between 6.5 and 8.2.

Turbidity Turbid water is caused by suspended matter -May be the result of soil erosion, urban runoff, algal blooms, and bottom sediment disturbances

Temperature Thermal pollution, the discharge of heated water from industrial operations, for example, can cause temperature changes that threaten the balance of aquatic systems.

Stream Morphology

Stream Morphology

Stream Morphology

Riparian Zones Functions & Values Stream bank stabilization Habitat Pollution, sediment and nutrient trapping Flood Control

Riparian Zones Forbes Sedges Shrubs/trees Grasses Deep Rooted Shallow Rooted

Before

After Willows

Year 2 Rock deflectors

Wetland Dynamics Why are wetlands so useful to ecosystems? What are their main functions?

Ground & Surface Water

Competing Water Uses 2015 Colorado Water Plan Outlines beneficial uses of water (agriculture, recreation, municipal, industrial, wildlife) Prioritizes water conservation, water education, and re-use principles Non Point & Point Source Pollution Best Management Practices (BMPs)