freshwater biology

This book introduces freshwater biomes, including what they are, how them form, and the plants and animals that live there.

During his visit to an aquarium, a boy finds out about the characteristics and environments of many different marine and freshwater creatures.

Learn about how some sharks are able to live in freshwater instead of saltwater, what they eat, where they live, and which types are aggressive towards humans.

Do dragonflies bite? What is the difference between a frog and a toad? Are leeches dangerous?.

Students will explore the diverse freshwater habitat and learn about biotic and abiotic factors that make up the ecosystem, participate in a hands-on experiment to test the amount of dissolved oxygen in two different bodies of water and visit with a freshwater naturalist who exmines wetlands around the world.

A handbook describing and illustrating some of the common animals and plants found in or near ponds, lakes, streams, and marshes.

Discusses the current state of the plant and animal life in the five Great Lakes and speculates about the future of the lakes and the ecosystems they contain.

Contains photographs, text, and five essays about rivers and lakes.

Describes the life and work of Ann Haven Morgan, who studied, taught, and wrote about the animals of ponds and streams and the importance of an ecological approach to conservation. Includes related activities.

Examines the many different microscopic organisms that exist in pond water and describes how they function and their role in nature.