Aquatic Ecology Resources
General Aquatic Ecology Resources
- River Watch Website
- Wetland Functions and Values
- Lake Ecology
- Invertebrates
- Fish
- Habitat Needs and Managing Wetlands for Wading Birds
- Theme-Specific Aquatic Ecology References
Agriculture
- General Guide To Farm Pond Management
- Effect of Human Settlement on Bird Communities in Lowland Riparian Areas of Colorado
- *Note: Pay attention to the concepts and findings of the study, and don’t get intimidated by the statistical methods
- Effects of Urban Sprawl on the Little Blackwater River, MD
- * Note: Read through all three of these references with the mindset of a city planner. Remember, you are responsible for balancing the city’s development needs with environmental responsibility and regulations. Also, pay attention to the techniques used to evaluate water quality.
Aquatic Ecology Key Points
Key Point 1- Abiotic Factors
Learning Objectives:
- Know the processes and phases for each part of the water cycle and understand the water cycle’s role in soil nutrient erosion, salinization of agricultural lands, and climatic influences.
- Understand the concept and components of a watershed and be able to identify stream orders and watershed boundaries. Know the features of a healthy watershed and an unhealthy watershed.
- Know how to perform and interpret chemical water quality tests and understand why aquatic organisms and water quality are affected by the physical, chemical, and biological conditions of the water.
Suggested Activities:
Conduct chemical water quality tests to determine the temperature, dissolved oxygen, pH, phosphorus, alkalinity, nitrogen, and dissolved oxygen percent saturation of a water sample and explain why these test results are indicators of water quality and can be used to assess and manage aquatic environments.
Use topographic maps to investigate the concept of a watershed, identify a river’s watershed system, and delineate the watershed of a given area. Be able to describe how different land uses and watershed characteristics can affect water runoff, water flow, types of stream habitats, and management approaches.
Investigate and find out who is using the water in your watershed, and become familiar with historic stream and river levels to learn if levels are increasing or decreasing. Use stream assessment data to determine the health of your watershed.
Key Point 2- Biotic Factors
Learning Objectives:
- Understand the dependence of all organisms on one another and how energy and matter flow within an aquatic ecosystem.
- Understand the concept of carrying capacity for a given aquatic ecosystem, and be able to discuss how competing water usage may affect the ability of the system to sustain wildlife, forestry, and anthropogenic needs.
- Identify common, rare, threatened, and endangered aquatic species as well as Aquatic Nuisance Species (ANS) through the use of a key.
- Know how to perform biological water quality monitoring tests and understand why these tests are used to assess and manage aquatic environments.
Suggested Activities:
Conduct a biological stream assessment by collecting macroinvertebrates. Stream Data sheets (key point 1, resource 4) should be used to record and analyze information. Explain why these organisms are biological indicators that help us determine the health of a stream or waterway.
Describe the habitat needs of three specific aquatic animals, and compare and contrast the flow of energy in three different aquatic food chains.
Create a visual display of rare and endangered aquatic species. Explain how human activities are causing species imperilment and specify actions being taken to protect these species.
Key Point 3- Aquatic Environments
Learning Objectives:
- Identify aquatic and wetland environments based on their physical, chemical, and biological characteristics.
- Know characteristics of different types of aquifers, and understand historical trends and threats to groundwater quantity and quality.
- Understand societal benefits and ecological functions of wetlands.
- Understand the functions and values of riparian zones and be able to identify riparian zone areas.
Suggested Activities:
Describe the physical, chemical, and biological characteristics of a stream, river, pond, lake, and wetland.
Explain how different types of aquifers are indicators of water quantity and water quality. Describe how subsidence and saltwater intrusion are related to the falling water table in many aquifers.
Describe three functions of wetlands, and explain how these functions are met in the absence of wetlands.
Describe three functions of riparian zones and explain how the removal of or damage to the riparian zone would affect water quality and specific aquatic food chains.
Key Point 4- Water Protection and Conservation
Learning Objectives:
- Understand how education programs and enforcement agencies are working together to protect aquatic habitats and prevent those who use our waterways from inadvertently transporting Aquatic Nuisance Species ANS from one river to another.
- Interpret major provincial and /or federal laws and methods used to protect water quality (i.e., surface and ground water). Utilize this information to propose management decisions that would improve the quality of water in a given situation.
- Be familiar with the Federal, Provincial, and state agencies that provide oversight of water resources, and understand that Geographic Information Systems (GIS) is a valuable and important tool in the management of water resources.
- Identify global and local sources of point and non-point source pollution and discuss methods to reduce both point and non-point source pollution.
- Understand the interaction of competing uses of water for water supply, hydropower, navigation, wildlife, recreation, waste assimilation, irrigation, and industry.
- Know the meaning of water conservation, and understand why it is important every time you turn on a faucet.
Suggested Activities:
- List at least 3 Aquatic Nuisance Species ANS, and describe their effects on an aquatic ecosystem. Consider what can happen when predator ANS are imported, and develop a plan for the eradication of a target ANS.
- Site water protection laws are at a mock hearing to decide whether a permit should be given to build a new shopping mall along a river.
- Explain how Geographic Information Systems (GIS) are being used to help communities assess water quality and watershed health information.
- Compare water usage in different regions of Canada and the United States and propose actions to help countries strike a balance between supply and demand in order to realize maximum benefit from our water resources.
- Design a comprehensive water conservation plan for your home and the watershed below your home. This should include groundwater replenishment, securing sediment on your property, managing non-point source pollution, and following the path of good quality water as it leaves your property on its way to the sea.
- Many dams are used to provide low-cost electricity at the critical time of day when there is peak demand for electricity. Today a major issue is deciding which is more important to the economy, low cost energy or improving/restoring the ecology of a river. Evaluate the issue and develop recommendations for conservation groups and utility executives.
