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View Resource Shock Therapy with Seawater

This radio broadcast describes a technique called 'salinity shock' which is being used to kill plants and animals that ride in ballast water on ships. Oceangoing ships are now dumping their freshwater ballast at sea and taking on a new load of saltwater to kill and flush out stowaway organisms. The clip is 2 minutes in length and may be downloaded in MP3 format.

View Resource The Frog Man of the Sonoran Desert

This radio broadcast features an interview with a herpetologist who studies the native toads of the Sonoran Desert and an invasive species from the east, the American bull frog. The herpetologist, Dr. Cecil Schwalbe, describes the mating cycle of the native toads, which is connected to the yearly monsoon rains that wet the Sonoran Desert, as well as the impacts of the American bullfrog, a...

View Resource VIMS Molluscan Ecology Program: Ongoing Rapana Venosa Research

This marine snail (Rapana venosa) from Asia was discovered in the Chesapeake Bay in 1998. VIMS scientists report their research on this exotic species, how its biology and life cycle allowed it to invade US waters via ballast water, and what impacts it may have on local ecology and shellfish populations. Describes reporting and bounty system for monitoring the species. Site provides the...

View Resource Great Lakes Fishery Commission

Headquartered in Ann Arbor, Michigan, the GLFC coordinates fisheries research, controls the invasive sea lamprey, and facilitates cooperative fishery management among the state, provincial, tribal, and federal management agencies. Site features the latest news, events, and research of the Great Lakes, plus publications, an image gallery, information on each specific lake committee, fisheries...

View Resource Earthwatch Radio: Sea Lamprey Resurgence

This radio broadcast describes efforts to control the population of sea lampreys in the Great Lakes. Sea lampreys, an invasive species from the Atlantic Ocean, have populated the lakes for years, but have recently increased in numbers despite efforts to control them. A hole in a dam on the Manistique River on the northern edge of Lake Michigan is thought to have caused the problem. The clip is 2...

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