Relevant sections in this resource include What are Harmful Algal Blooms (HABs), an Introduction to Algal Blooms and "Red Tide", Algae Species (which algae are responsible for the harmful effects?), Adverse Impacts, Human Illness (food poisoning associated with harmful algal blooms & information on diagnosis and treatment), HAB Distribution Maps, HAB events in the United States and around the ... Full description.

In this lesson, students will investigate the relationship between atmospheric carbon dioxide levels and chlorophyll-a measurements in a local watershed. They will compare two data sets to find correlations and explain the importance of carbon dioxide and photosynthetic plants in the carbon cycle. At the end of the lesson, students will be able to relate global climate change to local effects. Full description.

This resource ties together physical and biological aspects of ocean color for high school students. Specific sections discuss life in the oceans, the appearance of the ocean from space, phytoplankton (the little link in a big food chain), carbon (where does it go?), and the Earth as a giant greenhouse. There are also activities that accompany these lessons. Full description.

This site is maintained by the Digital Learning Center for Microbial Ecology. A Microbe Zoo and the Microbe of the Month are included. The site provides some background material on many different types of Microbes, in ponds, around the deep sea vents, and various other locations. Two water regions are represented on the site, although mention is made of several others. Full description.

This feature is from an article in National Geographic Magazine about a 2000 expedition into Canada's Foxe Basin to research the Atlantic Walrus. It includes field notes, photos, and audio/video clips. Full description.

This site provides information on several microscopic marine algae which are toxic to humans. Examples include Alexandrium, Dinophysis, Pseudo-nitzschia multiseries, and Domoic acid. Full description.

These lessons help students develop a better understanding of the importance of well-managed water use while exploring the concepts of a watershed, land use, aquifers, and water engineering. The material focuses on the historical water use decision affecting the Owens River Valley in California. Materials lists, procedures, assessment recommendations, and extension ideas are provided. Links to additional ... Full description.

Students can view these television programs about a variety of ocean science topics right in their classroom. They are presented by real scientists and feature a call-in question and answer session to end the lesson. Teacher packets containing information pertaining to program topics, activities to do with students, pages for students' individual use, and vocabulary and reference lists, are available ... Full description.

For ecologists, the horseshoe crab is an important creature- a vastly adaptable organism that predates most species on the planet, with a lifecyle that is interlocked with other animals. Users can view information, photographs, and diagrams that explain the anatomy, range and habitat, lifecycle, ecological niche, reproductive cycle, and medical uses of the horseshoe crab. Full description.

The Chesapeake Bay is the largest estuary in the US. Eleven rivers empty into the bay creating the Chesapeake Bay Watershed. From urban areas and cultivated fields in which wetlands were not preserved, runoff can run into the rivers unfiltered. This runoff can include nutrients that can cause uncontrolled growth of an abundance of algae which can eventually increase the turbidity of the river, not ... Full description.