Aquatic Ecosystems

An aquatic ecosystem is a community of organisms and the physical environment in which they interact within a watery environment. Aquatic ecosystems can be classified into two main types: marine ecosystems and freshwater ecosystems.

Marine Ecosystems

Marine ecosystems are found in saltwater environments such as oceans and seas. They are home to a diverse range of organisms, including fish, whales, dolphins, sharks, and various types of plankton. The marine ecosystem is also characterized by the presence of coral reefs, which are important for biodiversity and serve as habitats for many marine species.

Freshwater Ecosystems

Freshwater ecosystems include bodies of water with low salinity, such as rivers, lakes, ponds, and wetlands. These ecosystems support a variety of aquatic plants and animals, including fish, amphibians, insects, and birds. Wetlands, in particular, are important for water filtration and provide critical habitat for many species.

Study Guide

Key Concepts

1. Definition of Aquatic Ecosystems
2. Types of Aquatic Ecosystems (Marine and Freshwater)
3. Characteristics of Marine Ecosystems
4. Characteristics of Freshwater Ecosystems

Study Tips

• Review the differences between marine and freshwater ecosystems.
• Learn about the unique features and organisms found in each type of aquatic ecosystem.
• Understand the importance of aquatic ecosystems for biodiversity and their role in the global environment.
• Explore human impacts on aquatic ecosystems, such as pollution, overfishing, and habitat destruction.

Sample Questions

1. What are the two main types of aquatic ecosystems?
2. Describe the characteristics of marine ecosystems.
3. Why are wetlands important in freshwater ecosystems?
4. Discuss the impact of human activities on aquatic ecosystems.

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