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.

This web site contains illustrated information and classroom-ready activities for teachers, students, and anyone who want to learn about aquatic environments. The site is divided into seven topical sites, either by habitat or species. "Space Available" focuses on using satellite imagery to study the oceans and includes sections on the human impact on oceans, weather, remote sensing, and how satellites ... Full description.

Ocean chemistry, particularly the carbon cycle, is featured in text and illustrations, with quantitative graphics and a lab demonstration. Graphics include the global carbon cycle from 1980-1989, annual carbon dioxide flux, ocean chlorophyll concentration east of Buenos Aires, and a cartoon showing upwelling of nutrients. 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 glossary of terms used in marine biology is associated with the textbook, Marine Biology, Function, Biodiversity, Ecology, by Jeffery Levinton (Oxford University Press, New York). It is associated with Marine Biology Web, which provides links to other marine biology topics. Full description.

This learning unit is designed to present a means to examine what factors influence the quality of water in the Chesapeake Bay: population increase, algal blooms, endangered species (shad, oysters and blue crabs), and different watersheds (such as the Susquehanna River Basin) draining into the Chesapeake Bay bringing nutrients and pollution. Students work in groups to take on the role of scientists, ... Full description.

The Mote Marine Laboratory Phytoplankton Ecology Program focuses on microscopic plants in the oceans, many of which produce harmful toxins. This program addresses phytoplankton behavior, photophysiology and bloom dynamics. This site contains data from investigations, which utilize remote sensing technology for monitoring natural phytoplankton blooms as well as laboratory studies to understand how ... Full description.

This site is a type of Clean Water Act for Kids. Tips for preventing non-point pollution tips are offered in the following areas: Anglers, Beach, Boaters, Drivers, Ecotourism, Endangered Species, Holiday and Gift giving, Home, Kitchen, Laundry and Cleaning, Lawn and Garden, Personal Watercraft, Recycling, Scuba Diving, Shore Visitors, Smokers, Students, and Water Conservation. The site is full of ... Full description.

This portal offers an alphabetical selection of links to materials on a variety of sea creatures, especially whales. Topics include research reports, expedition records, maps, datasets, movies, and sound recordings for several species of whales, seals, porpoises, and turtles. Full description.

This is a web-based activity using satellite images of the Gulf of Maine and the Carribean Sea. Students are asked to examine satellite data of sea surface temperatures. From this data they are to determine the temperature scale and how temperature differences are indicated. They also examine phytoplankton density images to determine where high phytoplankton densities are. Additional activities are ... Full description.